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rocksdb/tools/ldb_cmd.cc

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
#include "rocksdb/utilities/ldb_cmd.h"
#include <cstddef>
#include <cstdlib>
#include <ctime>
#include <fstream>
#include <functional>
#include <iostream>
#include <limits>
#include <sstream>
#include <stdexcept>
#include <string>
#include "db/blob/blob_index.h"
#include "db/db_impl/db_impl.h"
#include "db/dbformat.h"
#include "db/log_reader.h"
#include "db/version_util.h"
#include "db/wide/wide_column_serialization.h"
#include "db/wide/wide_columns_helper.h"
#include "db/write_batch_internal.h"
#include "file/filename.h"
#include "rocksdb/cache.h"
#include "rocksdb/comparator.h"
#include "rocksdb/experimental.h"
#include "rocksdb/file_checksum.h"
#include "rocksdb/filter_policy.h"
#include "rocksdb/options.h"
#include "rocksdb/table_properties.h"
#include "rocksdb/utilities/backup_engine.h"
#include "rocksdb/utilities/checkpoint.h"
#include "rocksdb/utilities/debug.h"
#include "rocksdb/utilities/options_util.h"
#include "rocksdb/write_batch.h"
#include "rocksdb/write_buffer_manager.h"
#include "table/sst_file_dumper.h"
#include "tools/ldb_cmd_impl.h"
#include "util/cast_util.h"
#include "util/coding.h"
#include "util/file_checksum_helper.h"
#include "util/stderr_logger.h"
#include "util/string_util.h"
#include "util/write_batch_util.h"
#include "utilities/blob_db/blob_dump_tool.h"
#include "utilities/merge_operators.h"
#include "utilities/ttl/db_ttl_impl.h"
namespace ROCKSDB_NAMESPACE {
class FileChecksumGenCrc32c;
class FileChecksumGenCrc32cFactory;
const std::string LDBCommand::ARG_ENV_URI = "env_uri";
const std::string LDBCommand::ARG_FS_URI = "fs_uri";
const std::string LDBCommand::ARG_DB = "db";
const std::string LDBCommand::ARG_PATH = "path";
const std::string LDBCommand::ARG_SECONDARY_PATH = "secondary_path";
const std::string LDBCommand::ARG_LEADER_PATH = "leader_path";
const std::string LDBCommand::ARG_HEX = "hex";
const std::string LDBCommand::ARG_KEY_HEX = "key_hex";
const std::string LDBCommand::ARG_VALUE_HEX = "value_hex";
const std::string LDBCommand::ARG_CF_NAME = "column_family";
const std::string LDBCommand::ARG_TTL = "ttl";
const std::string LDBCommand::ARG_TTL_START = "start_time";
const std::string LDBCommand::ARG_TTL_END = "end_time";
const std::string LDBCommand::ARG_TIMESTAMP = "timestamp";
const std::string LDBCommand::ARG_TRY_LOAD_OPTIONS = "try_load_options";
const std::string LDBCommand::ARG_DISABLE_CONSISTENCY_CHECKS =
"disable_consistency_checks";
const std::string LDBCommand::ARG_IGNORE_UNKNOWN_OPTIONS =
"ignore_unknown_options";
const std::string LDBCommand::ARG_FROM = "from";
const std::string LDBCommand::ARG_TO = "to";
const std::string LDBCommand::ARG_MAX_KEYS = "max_keys";
const std::string LDBCommand::ARG_BLOOM_BITS = "bloom_bits";
const std::string LDBCommand::ARG_FIX_PREFIX_LEN = "fix_prefix_len";
const std::string LDBCommand::ARG_COMPRESSION_TYPE = "compression_type";
const std::string LDBCommand::ARG_COMPRESSION_MAX_DICT_BYTES =
"compression_max_dict_bytes";
const std::string LDBCommand::ARG_BLOCK_SIZE = "block_size";
const std::string LDBCommand::ARG_AUTO_COMPACTION = "auto_compaction";
const std::string LDBCommand::ARG_DB_WRITE_BUFFER_SIZE = "db_write_buffer_size";
const std::string LDBCommand::ARG_WRITE_BUFFER_SIZE = "write_buffer_size";
const std::string LDBCommand::ARG_FILE_SIZE = "file_size";
const std::string LDBCommand::ARG_CREATE_IF_MISSING = "create_if_missing";
const std::string LDBCommand::ARG_NO_VALUE = "no_value";
const std::string LDBCommand::ARG_ENABLE_BLOB_FILES = "enable_blob_files";
const std::string LDBCommand::ARG_MIN_BLOB_SIZE = "min_blob_size";
const std::string LDBCommand::ARG_BLOB_FILE_SIZE = "blob_file_size";
const std::string LDBCommand::ARG_BLOB_COMPRESSION_TYPE =
"blob_compression_type";
const std::string LDBCommand::ARG_ENABLE_BLOB_GARBAGE_COLLECTION =
"enable_blob_garbage_collection";
const std::string LDBCommand::ARG_BLOB_GARBAGE_COLLECTION_AGE_CUTOFF =
"blob_garbage_collection_age_cutoff";
const std::string LDBCommand::ARG_BLOB_GARBAGE_COLLECTION_FORCE_THRESHOLD =
"blob_garbage_collection_force_threshold";
const std::string LDBCommand::ARG_BLOB_COMPACTION_READAHEAD_SIZE =
"blob_compaction_readahead_size";
const std::string LDBCommand::ARG_BLOB_FILE_STARTING_LEVEL =
"blob_file_starting_level";
const std::string LDBCommand::ARG_PREPOPULATE_BLOB_CACHE =
"prepopulate_blob_cache";
const std::string LDBCommand::ARG_DECODE_BLOB_INDEX = "decode_blob_index";
const std::string LDBCommand::ARG_DUMP_UNCOMPRESSED_BLOBS =
"dump_uncompressed_blobs";
const std::string LDBCommand::ARG_READ_TIMESTAMP = "read_timestamp";
const std::string LDBCommand::ARG_GET_WRITE_UNIX_TIME = "get_write_unix_time";
const char* LDBCommand::DELIM = " ==> ";
namespace {
// Helper class to iterate WAL logs in a directory in chronological order.
class WALFileIterator {
public:
explicit WALFileIterator(const std::string& parent_dir,
const std::vector<std::string>& filenames);
// REQUIRES Valid() == true
std::string GetNextWAL();
bool Valid() const { return wal_file_iter_ != log_files_.end(); }
private:
// WAL log file names(s)
std::string parent_dir_;
std::vector<std::string> log_files_;
std::vector<std::string>::const_iterator wal_file_iter_;
};
WALFileIterator::WALFileIterator(const std::string& parent_dir,
const std::vector<std::string>& filenames)
: parent_dir_(parent_dir) {
// populate wal logs
assert(!filenames.empty());
for (const auto& fname : filenames) {
uint64_t file_num = 0;
FileType file_type;
bool parse_ok = ParseFileName(fname, &file_num, &file_type);
if (parse_ok && file_type == kWalFile) {
log_files_.push_back(fname);
}
}
std::sort(log_files_.begin(), log_files_.end(),
[](const std::string& lhs, const std::string& rhs) {
uint64_t num1 = 0;
uint64_t num2 = 0;
FileType type1;
FileType type2;
bool parse_ok1 = ParseFileName(lhs, &num1, &type1);
bool parse_ok2 = ParseFileName(rhs, &num2, &type2);
#ifndef NDEBUG
assert(parse_ok1);
assert(parse_ok2);
#else
(void)parse_ok1;
(void)parse_ok2;
#endif
return num1 < num2;
});
wal_file_iter_ = log_files_.begin();
}
std::string WALFileIterator::GetNextWAL() {
assert(Valid());
std::string ret;
if (wal_file_iter_ != log_files_.end()) {
ret.assign(parent_dir_);
if (ret.back() != kFilePathSeparator) {
ret.push_back(kFilePathSeparator);
}
ret.append(*wal_file_iter_);
++wal_file_iter_;
}
return ret;
}
void DumpWalFiles(Options options, const std::string& dir_or_file,
bool print_header, bool print_values,
bool only_print_seqno_gaps, bool is_write_committed,
const std::map<uint32_t, const Comparator*>& ucmps,
LDBCommandExecuteResult* exec_state);
void DumpWalFile(Options options, const std::string& wal_file,
bool print_header, bool print_values,
bool only_print_seqno_gaps, bool is_write_committed,
const std::map<uint32_t, const Comparator*>& ucmps,
LDBCommandExecuteResult* exec_state,
std::optional<SequenceNumber>* prev_batch_seqno,
std::optional<uint32_t>* prev_batch_count);
void DumpSstFile(Options options, std::string filename, bool output_hex,
bool show_properties, bool decode_blob_index,
std::string from_key = "", std::string to_key = "");
void DumpBlobFile(const std::string& filename, bool is_key_hex,
bool is_value_hex, bool dump_uncompressed_blobs);
Status EncodeUserProvidedTimestamp(const std::string& user_timestamp,
std::string* ts_buf);
} // namespace
LDBCommand* LDBCommand::InitFromCmdLineArgs(
int argc, char const* const* argv, const Options& options,
const LDBOptions& ldb_options,
const std::vector<ColumnFamilyDescriptor>* column_families) {
std::vector<std::string> args;
for (int i = 1; i < argc; i++) {
args.emplace_back(argv[i]);
}
return InitFromCmdLineArgs(args, options, ldb_options, column_families,
SelectCommand);
}
void LDBCommand::ParseSingleParam(const std::string& param,
ParsedParams& parsed_params,
std::vector<std::string>& cmd_tokens) {
const std::string OPTION_PREFIX = "--";
if (param[0] == '-' && param[1] == '-') {
std::vector<std::string> splits = StringSplit(param, '=');
// --option_name=option_value
if (splits.size() == 2) {
std::string optionKey = splits[0].substr(OPTION_PREFIX.size());
parsed_params.option_map[optionKey] = splits[1];
} else if (splits.size() == 1) {
// --flag_name
std::string optionKey = splits[0].substr(OPTION_PREFIX.size());
parsed_params.flags.push_back(optionKey);
} else {
// --option_name=option_value, option_value contains '='
std::string optionKey = splits[0].substr(OPTION_PREFIX.size());
parsed_params.option_map[optionKey] =
param.substr(splits[0].length() + 1);
}
} else {
cmd_tokens.push_back(param);
}
}
/**
* Parse the command-line arguments and create the appropriate LDBCommand2
* instance.
* The command line arguments must be in the following format:
* ./ldb --db=PATH_TO_DB [--commonOpt1=commonOpt1Val] ..
* COMMAND <PARAM1> <PARAM2> ... [-cmdSpecificOpt1=cmdSpecificOpt1Val] ..
* This is similar to the command line format used by HBaseClientTool.
* Command name is not included in args.
* Returns nullptr if the command-line cannot be parsed.
*/
LDBCommand* LDBCommand::InitFromCmdLineArgs(
const std::vector<std::string>& args, const Options& options,
const LDBOptions& ldb_options,
const std::vector<ColumnFamilyDescriptor>* column_families,
const std::function<LDBCommand*(const ParsedParams&)>& selector) {
// --x=y command line arguments are added as x->y map entries in
// parsed_params.option_map.
//
// Command-line arguments of the form --hex end up in this array as hex to
// parsed_params.flags
ParsedParams parsed_params;
// Everything other than option_map and flags. Represents commands
// and their parameters. For eg: put key1 value1 go into this vector.
std::vector<std::string> cmdTokens;
for (const auto& arg : args) {
ParseSingleParam(arg, parsed_params, cmdTokens);
}
if (cmdTokens.size() < 1) {
fprintf(stderr, "Command not specified!");
return nullptr;
}
parsed_params.cmd = cmdTokens[0];
parsed_params.cmd_params.assign(cmdTokens.begin() + 1, cmdTokens.end());
LDBCommand* command = selector(parsed_params);
if (command) {
command->SetDBOptions(options);
command->SetLDBOptions(ldb_options);
command->SetColumnFamilies(column_families);
}
return command;
}
LDBCommand* LDBCommand::SelectCommand(const ParsedParams& parsed_params) {
if (parsed_params.cmd == GetCommand::Name()) {
return new GetCommand(parsed_params.cmd_params, parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == MultiGetCommand::Name()) {
return new MultiGetCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == GetEntityCommand::Name()) {
return new GetEntityCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == MultiGetEntityCommand::Name()) {
return new MultiGetEntityCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == PutCommand::Name()) {
return new PutCommand(parsed_params.cmd_params, parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == PutEntityCommand::Name()) {
return new PutEntityCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == BatchPutCommand::Name()) {
return new BatchPutCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == ScanCommand::Name()) {
return new ScanCommand(parsed_params.cmd_params, parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == DeleteCommand::Name()) {
return new DeleteCommand(parsed_params.cmd_params, parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == SingleDeleteCommand::Name()) {
return new SingleDeleteCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == DeleteRangeCommand::Name()) {
return new DeleteRangeCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == ApproxSizeCommand::Name()) {
return new ApproxSizeCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == DBQuerierCommand::Name()) {
return new DBQuerierCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == CompactorCommand::Name()) {
return new CompactorCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == WALDumperCommand::Name()) {
return new WALDumperCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == ReduceDBLevelsCommand::Name()) {
return new ReduceDBLevelsCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == ChangeCompactionStyleCommand::Name()) {
return new ChangeCompactionStyleCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == DBDumperCommand::Name()) {
return new DBDumperCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == DBLoaderCommand::Name()) {
return new DBLoaderCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == ManifestDumpCommand::Name()) {
return new ManifestDumpCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == FileChecksumDumpCommand::Name()) {
return new FileChecksumDumpCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == GetPropertyCommand::Name()) {
return new GetPropertyCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == ListColumnFamiliesCommand::Name()) {
return new ListColumnFamiliesCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == CreateColumnFamilyCommand::Name()) {
return new CreateColumnFamilyCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == DropColumnFamilyCommand::Name()) {
return new DropColumnFamilyCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == DBFileDumperCommand::Name()) {
return new DBFileDumperCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == DBLiveFilesMetadataDumperCommand::Name()) {
return new DBLiveFilesMetadataDumperCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == InternalDumpCommand::Name()) {
return new InternalDumpCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == CheckConsistencyCommand::Name()) {
return new CheckConsistencyCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == CheckPointCommand::Name()) {
return new CheckPointCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == RepairCommand::Name()) {
return new RepairCommand(parsed_params.cmd_params, parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == BackupCommand::Name()) {
return new BackupCommand(parsed_params.cmd_params, parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == RestoreCommand::Name()) {
return new RestoreCommand(parsed_params.cmd_params,
parsed_params.option_map, parsed_params.flags);
} else if (parsed_params.cmd == WriteExternalSstFilesCommand::Name()) {
return new WriteExternalSstFilesCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == IngestExternalSstFilesCommand::Name()) {
return new IngestExternalSstFilesCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == ListFileRangeDeletesCommand::Name()) {
return new ListFileRangeDeletesCommand(parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == UnsafeRemoveSstFileCommand::Name()) {
return new UnsafeRemoveSstFileCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
} else if (parsed_params.cmd == UpdateManifestCommand::Name()) {
return new UpdateManifestCommand(parsed_params.cmd_params,
parsed_params.option_map,
parsed_params.flags);
}
return nullptr;
}
/* Run the command, and return the execute result. */
void LDBCommand::Run() {
if (!exec_state_.IsNotStarted()) {
return;
}
if (!options_.env || options_.env == Env::Default()) {
Env* env = Env::Default();
Status s = Env::CreateFromUri(config_options_, env_uri_, fs_uri_, &env,
&env_guard_);
if (!s.ok()) {
fprintf(stderr, "%s\n", s.ToString().c_str());
exec_state_ = LDBCommandExecuteResult::Failed(s.ToString());
return;
}
options_.env = env;
}
if (db_ == nullptr && !NoDBOpen()) {
OpenDB();
if (exec_state_.IsFailed() && try_load_options_) {
// We don't always return if there is a failure because a WAL file or
// manifest file can be given to "dump" command so we should continue.
// --try_load_options is not valid in those cases.
return;
}
}
// We'll intentionally proceed even if the DB can't be opened because users
// can also specify a filename, not just a directory.
DoCommand();
if (exec_state_.IsNotStarted()) {
exec_state_ = LDBCommandExecuteResult::Succeed("");
}
if (db_ != nullptr) {
CloseDB();
}
}
LDBCommand::LDBCommand(const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags, bool is_read_only,
const std::vector<std::string>& valid_cmd_line_options)
: db_(nullptr),
db_ttl_(nullptr),
is_read_only_(is_read_only),
is_key_hex_(false),
is_value_hex_(false),
is_db_ttl_(false),
timestamp_(false),
try_load_options_(false),
create_if_missing_(false),
option_map_(options),
flags_(flags),
valid_cmd_line_options_(valid_cmd_line_options) {
auto itr = options.find(ARG_DB);
if (itr != options.end()) {
db_path_ = itr->second;
}
itr = options.find(ARG_ENV_URI);
if (itr != options.end()) {
env_uri_ = itr->second;
}
itr = options.find(ARG_FS_URI);
if (itr != options.end()) {
fs_uri_ = itr->second;
}
itr = options.find(ARG_CF_NAME);
if (itr != options.end()) {
column_family_name_ = itr->second;
} else {
column_family_name_ = kDefaultColumnFamilyName;
}
itr = options.find(ARG_SECONDARY_PATH);
secondary_path_ = "";
if (itr != options.end()) {
secondary_path_ = itr->second;
}
itr = options.find(ARG_LEADER_PATH);
leader_path_ = "";
if (itr != options.end()) {
leader_path_ = itr->second;
}
is_key_hex_ = IsKeyHex(options, flags);
is_value_hex_ = IsValueHex(options, flags);
is_db_ttl_ = IsFlagPresent(flags, ARG_TTL);
timestamp_ = IsFlagPresent(flags, ARG_TIMESTAMP);
try_load_options_ = IsTryLoadOptions(options, flags);
force_consistency_checks_ =
!IsFlagPresent(flags, ARG_DISABLE_CONSISTENCY_CHECKS);
enable_blob_files_ = IsFlagPresent(flags, ARG_ENABLE_BLOB_FILES);
enable_blob_garbage_collection_ =
IsFlagPresent(flags, ARG_ENABLE_BLOB_GARBAGE_COLLECTION);
config_options_.ignore_unknown_options =
IsFlagPresent(flags, ARG_IGNORE_UNKNOWN_OPTIONS);
}
void LDBCommand::OpenDB() {
PrepareOptions();
if (!exec_state_.IsNotStarted()) {
return;
}
if (column_families_.empty() && !options_.merge_operator) {
// No harm to add a general merge operator if it is not specified.
options_.merge_operator = MergeOperators::CreateStringAppendOperator(':');
}
// Open the DB.
Status st;
std::vector<ColumnFamilyHandle*> handles_opened;
if (is_db_ttl_) {
// ldb doesn't yet support TTL DB with multiple column families
if (!column_family_name_.empty() || !column_families_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"ldb doesn't support TTL DB with multiple column families");
}
if (!secondary_path_.empty() || !leader_path_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Open as secondary or follower is not supported for TTL DB yet.");
}
if (is_read_only_) {
st = DBWithTTL::Open(options_, db_path_, &db_ttl_, 0, true);
} else {
st = DBWithTTL::Open(options_, db_path_, &db_ttl_);
}
db_ = db_ttl_;
} else {
if (!secondary_path_.empty() && !leader_path_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Cannot provide both secondary and leader paths");
}
if (is_read_only_ && secondary_path_.empty() && leader_path_.empty()) {
if (column_families_.empty()) {
st = DB::OpenForReadOnly(options_, db_path_, &db_);
} else {
st = DB::OpenForReadOnly(options_, db_path_, column_families_,
&handles_opened, &db_);
}
} else {
if (column_families_.empty()) {
if (secondary_path_.empty() && leader_path_.empty()) {
st = DB::Open(options_, db_path_, &db_);
} else if (!secondary_path_.empty()) {
st = DB::OpenAsSecondary(options_, db_path_, secondary_path_, &db_);
} else {
std::unique_ptr<DB> dbptr;
st = DB::OpenAsFollower(options_, db_path_, leader_path_, &dbptr);
db_ = dbptr.release();
}
} else {
if (secondary_path_.empty() && leader_path_.empty()) {
st = DB::Open(options_, db_path_, column_families_, &handles_opened,
&db_);
} else if (!secondary_path_.empty()) {
st = DB::OpenAsSecondary(options_, db_path_, secondary_path_,
column_families_, &handles_opened, &db_);
} else {
std::unique_ptr<DB> dbptr;
st = DB::OpenAsFollower(options_, db_path_, leader_path_,
column_families_, &handles_opened, &dbptr);
db_ = dbptr.release();
}
}
}
}
if (!st.ok()) {
std::string msg = st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(msg);
} else if (!handles_opened.empty()) {
assert(handles_opened.size() == column_families_.size());
bool found_cf_name = false;
for (size_t i = 0; i < handles_opened.size(); i++) {
cf_handles_[column_families_[i].name] = handles_opened[i];
ucmps_[handles_opened[i]->GetID()] = handles_opened[i]->GetComparator();
if (column_family_name_ == column_families_[i].name) {
found_cf_name = true;
}
}
if (!found_cf_name) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Non-existing column family " + column_family_name_);
CloseDB();
}
ColumnFamilyHandle* default_cf = db_->DefaultColumnFamily();
ucmps_[default_cf->GetID()] = default_cf->GetComparator();
} else {
// We successfully opened DB in single column family mode.
assert(column_families_.empty());
if (column_family_name_ != kDefaultColumnFamilyName) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Non-existing column family " + column_family_name_);
CloseDB();
}
ColumnFamilyHandle* default_cf = db_->DefaultColumnFamily();
ucmps_[default_cf->GetID()] = default_cf->GetComparator();
}
}
void LDBCommand::CloseDB() {
if (db_ != nullptr) {
for (auto& pair : cf_handles_) {
delete pair.second;
}
Status s = db_->Close();
s.PermitUncheckedError();
delete db_;
db_ = nullptr;
}
}
ColumnFamilyHandle* LDBCommand::GetCfHandle() {
if (!cf_handles_.empty()) {
auto it = cf_handles_.find(column_family_name_);
if (it == cf_handles_.end()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Cannot find column family " + column_family_name_);
} else {
return it->second;
}
}
return db_->DefaultColumnFamily();
}
std::vector<std::string> LDBCommand::BuildCmdLineOptions(
std::vector<std::string> options) {
std::vector<std::string> ret = {ARG_ENV_URI,
ARG_FS_URI,
ARG_DB,
ARG_SECONDARY_PATH,
ARG_LEADER_PATH,
ARG_BLOOM_BITS,
ARG_BLOCK_SIZE,
ARG_AUTO_COMPACTION,
ARG_COMPRESSION_TYPE,
ARG_COMPRESSION_MAX_DICT_BYTES,
ARG_WRITE_BUFFER_SIZE,
ARG_FILE_SIZE,
ARG_FIX_PREFIX_LEN,
ARG_TRY_LOAD_OPTIONS,
ARG_DISABLE_CONSISTENCY_CHECKS,
ARG_ENABLE_BLOB_FILES,
ARG_MIN_BLOB_SIZE,
ARG_BLOB_FILE_SIZE,
ARG_BLOB_COMPRESSION_TYPE,
ARG_ENABLE_BLOB_GARBAGE_COLLECTION,
ARG_BLOB_GARBAGE_COLLECTION_AGE_CUTOFF,
ARG_BLOB_GARBAGE_COLLECTION_FORCE_THRESHOLD,
ARG_BLOB_COMPACTION_READAHEAD_SIZE,
ARG_BLOB_FILE_STARTING_LEVEL,
ARG_PREPOPULATE_BLOB_CACHE,
ARG_IGNORE_UNKNOWN_OPTIONS,
ARG_CF_NAME};
ret.insert(ret.end(), options.begin(), options.end());
return ret;
}
/**
* Parses the specific double option and fills in the value.
* Returns true if the option is found.
* Returns false if the option is not found or if there is an error parsing the
* value. If there is an error, the specified exec_state is also
* updated.
*/
bool LDBCommand::ParseDoubleOption(
const std::map<std::string, std::string>& /*options*/,
const std::string& option, double& value,
LDBCommandExecuteResult& exec_state) {
auto itr = option_map_.find(option);
if (itr != option_map_.end()) {
#if defined(CYGWIN)
char* str_end = nullptr;
value = std::strtod(itr->second.c_str(), &str_end);
if (str_end == itr->second.c_str()) {
exec_state =
LDBCommandExecuteResult::Failed(option + " has an invalid value.");
} else if (errno == ERANGE) {
exec_state = LDBCommandExecuteResult::Failed(
option + " has a value out-of-range.");
} else {
return true;
}
#else
try {
value = std::stod(itr->second);
return true;
} catch (const std::invalid_argument&) {
exec_state =
LDBCommandExecuteResult::Failed(option + " has an invalid value.");
} catch (const std::out_of_range&) {
exec_state = LDBCommandExecuteResult::Failed(
option + " has a value out-of-range.");
}
#endif
}
return false;
}
/**
* Parses the specific integer option and fills in the value.
* Returns true if the option is found.
* Returns false if the option is not found or if there is an error parsing the
* value. If there is an error, the specified exec_state is also
* updated.
*/
bool LDBCommand::ParseIntOption(
const std::map<std::string, std::string>& /*options*/,
const std::string& option, int& value,
LDBCommandExecuteResult& exec_state) {
auto itr = option_map_.find(option);
if (itr != option_map_.end()) {
#if defined(CYGWIN)
char* str_end = nullptr;
value = strtol(itr->second.c_str(), &str_end, 10);
if (str_end == itr->second.c_str()) {
exec_state =
LDBCommandExecuteResult::Failed(option + " has an invalid value.");
} else if (errno == ERANGE) {
exec_state = LDBCommandExecuteResult::Failed(
option + " has a value out-of-range.");
} else {
return true;
}
#else
try {
value = std::stoi(itr->second);
return true;
} catch (const std::invalid_argument&) {
exec_state =
LDBCommandExecuteResult::Failed(option + " has an invalid value.");
} catch (const std::out_of_range&) {
exec_state = LDBCommandExecuteResult::Failed(
option + " has a value out-of-range.");
}
#endif
}
return false;
}
/**
* Parses the specified option and fills in the value.
* Returns true if the option is found.
* Returns false otherwise.
*/
bool LDBCommand::ParseStringOption(
const std::map<std::string, std::string>& /*options*/,
const std::string& option, std::string* value) {
auto itr = option_map_.find(option);
if (itr != option_map_.end()) {
*value = itr->second;
return true;
}
return false;
}
/**
* Parses the specified compression type and fills in the value.
* Returns true if the compression type is found.
* Returns false otherwise.
*/
bool LDBCommand::ParseCompressionTypeOption(
const std::map<std::string, std::string>& /*options*/,
const std::string& option, CompressionType& value,
LDBCommandExecuteResult& exec_state) {
auto itr = option_map_.find(option);
if (itr != option_map_.end()) {
const std::string& comp = itr->second;
if (comp == "no") {
value = kNoCompression;
return true;
} else if (comp == "snappy") {
value = kSnappyCompression;
return true;
} else if (comp == "zlib") {
value = kZlibCompression;
return true;
} else if (comp == "bzip2") {
value = kBZip2Compression;
return true;
} else if (comp == "lz4") {
value = kLZ4Compression;
return true;
} else if (comp == "lz4hc") {
value = kLZ4HCCompression;
return true;
} else if (comp == "xpress") {
value = kXpressCompression;
return true;
} else if (comp == "zstd") {
value = kZSTD;
return true;
} else {
// Unknown compression.
exec_state = LDBCommandExecuteResult::Failed(
"Unknown compression algorithm: " + comp);
}
}
return false;
}
Status LDBCommand::MaybePopulateReadTimestamp(ColumnFamilyHandle* cfh,
ReadOptions& ropts,
Slice* read_timestamp) {
const size_t ts_sz = cfh->GetComparator()->timestamp_size();
auto iter = option_map_.find(ARG_READ_TIMESTAMP);
if (iter == option_map_.end()) {
if (ts_sz == 0) {
return Status::OK();
}
return Status::InvalidArgument(
"column family enables user-defined timestamp while --read_timestamp "
"is not provided.");
}
if (iter->second.empty()) {
if (ts_sz == 0) {
return Status::OK();
}
return Status::InvalidArgument(
"column family enables user-defined timestamp while --read_timestamp "
"is empty.");
}
if (ts_sz == 0) {
return Status::InvalidArgument(
"column family does not enable user-defined timestamps while "
"--read_timestamp is provided.");
}
Status s = EncodeUserProvidedTimestamp(iter->second, &read_timestamp_);
if (!s.ok()) {
return s;
}
*read_timestamp = read_timestamp_;
ropts.timestamp = read_timestamp;
return Status::OK();
}
void LDBCommand::OverrideBaseOptions() {
options_.create_if_missing = false;
int db_write_buffer_size;
if (ParseIntOption(option_map_, ARG_DB_WRITE_BUFFER_SIZE,
db_write_buffer_size, exec_state_)) {
if (db_write_buffer_size >= 0) {
options_.db_write_buffer_size = db_write_buffer_size;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(ARG_DB_WRITE_BUFFER_SIZE +
" must be >= 0.");
}
}
if (options_.db_paths.size() == 0) {
options_.db_paths.emplace_back(db_path_,
std::numeric_limits<uint64_t>::max());
}
OverrideBaseCFOptions(static_cast<ColumnFamilyOptions*>(&options_));
}
void LDBCommand::OverrideBaseCFOptions(ColumnFamilyOptions* cf_opts) {
BlockBasedTableOptions table_options;
bool use_table_options = false;
int bits;
if (ParseIntOption(option_map_, ARG_BLOOM_BITS, bits, exec_state_)) {
if (bits > 0) {
use_table_options = true;
table_options.filter_policy.reset(NewBloomFilterPolicy(bits));
} else {
exec_state_ =
LDBCommandExecuteResult::Failed(ARG_BLOOM_BITS + " must be > 0.");
}
}
int block_size;
if (ParseIntOption(option_map_, ARG_BLOCK_SIZE, block_size, exec_state_)) {
if (block_size > 0) {
use_table_options = true;
table_options.block_size = block_size;
} else {
exec_state_ =
LDBCommandExecuteResult::Failed(ARG_BLOCK_SIZE + " must be > 0.");
}
}
// Default comparator is BytewiseComparator, so only when it's not, it
// means user has a command line override.
if (options_.comparator != nullptr &&
options_.comparator != BytewiseComparator()) {
cf_opts->comparator = options_.comparator;
}
cf_opts->force_consistency_checks = force_consistency_checks_;
if (use_table_options) {
cf_opts->table_factory.reset(NewBlockBasedTableFactory(table_options));
}
cf_opts->enable_blob_files = enable_blob_files_;
int min_blob_size;
if (ParseIntOption(option_map_, ARG_MIN_BLOB_SIZE, min_blob_size,
exec_state_)) {
if (min_blob_size >= 0) {
cf_opts->min_blob_size = min_blob_size;
} else {
exec_state_ =
LDBCommandExecuteResult::Failed(ARG_MIN_BLOB_SIZE + " must be >= 0.");
}
}
int blob_file_size;
if (ParseIntOption(option_map_, ARG_BLOB_FILE_SIZE, blob_file_size,
exec_state_)) {
if (blob_file_size > 0) {
cf_opts->blob_file_size = blob_file_size;
} else {
exec_state_ =
LDBCommandExecuteResult::Failed(ARG_BLOB_FILE_SIZE + " must be > 0.");
}
}
cf_opts->enable_blob_garbage_collection = enable_blob_garbage_collection_;
double blob_garbage_collection_age_cutoff;
if (ParseDoubleOption(option_map_, ARG_BLOB_GARBAGE_COLLECTION_AGE_CUTOFF,
blob_garbage_collection_age_cutoff, exec_state_)) {
if (blob_garbage_collection_age_cutoff >= 0 &&
blob_garbage_collection_age_cutoff <= 1) {
cf_opts->blob_garbage_collection_age_cutoff =
blob_garbage_collection_age_cutoff;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_BLOB_GARBAGE_COLLECTION_AGE_CUTOFF + " must be >= 0 and <= 1.");
}
}
double blob_garbage_collection_force_threshold;
if (ParseDoubleOption(option_map_,
ARG_BLOB_GARBAGE_COLLECTION_FORCE_THRESHOLD,
blob_garbage_collection_force_threshold, exec_state_)) {
if (blob_garbage_collection_force_threshold >= 0 &&
blob_garbage_collection_force_threshold <= 1) {
cf_opts->blob_garbage_collection_force_threshold =
blob_garbage_collection_force_threshold;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_BLOB_GARBAGE_COLLECTION_FORCE_THRESHOLD +
" must be >= 0 and <= 1.");
}
}
int blob_compaction_readahead_size;
if (ParseIntOption(option_map_, ARG_BLOB_COMPACTION_READAHEAD_SIZE,
blob_compaction_readahead_size, exec_state_)) {
if (blob_compaction_readahead_size > 0) {
cf_opts->blob_compaction_readahead_size = blob_compaction_readahead_size;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_BLOB_COMPACTION_READAHEAD_SIZE + " must be > 0.");
}
}
int blob_file_starting_level;
if (ParseIntOption(option_map_, ARG_BLOB_FILE_STARTING_LEVEL,
blob_file_starting_level, exec_state_)) {
if (blob_file_starting_level >= 0) {
cf_opts->blob_file_starting_level = blob_file_starting_level;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_BLOB_FILE_STARTING_LEVEL + " must be >= 0.");
}
}
int prepopulate_blob_cache;
if (ParseIntOption(option_map_, ARG_PREPOPULATE_BLOB_CACHE,
prepopulate_blob_cache, exec_state_)) {
switch (prepopulate_blob_cache) {
case 0:
cf_opts->prepopulate_blob_cache = PrepopulateBlobCache::kDisable;
break;
case 1:
cf_opts->prepopulate_blob_cache = PrepopulateBlobCache::kFlushOnly;
break;
default:
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_PREPOPULATE_BLOB_CACHE +
" must be 0 (disable) or 1 (flush only).");
}
}
auto itr = option_map_.find(ARG_AUTO_COMPACTION);
if (itr != option_map_.end()) {
cf_opts->disable_auto_compactions = !StringToBool(itr->second);
}
CompressionType compression_type;
if (ParseCompressionTypeOption(option_map_, ARG_COMPRESSION_TYPE,
compression_type, exec_state_)) {
cf_opts->compression = compression_type;
}
CompressionType blob_compression_type;
if (ParseCompressionTypeOption(option_map_, ARG_BLOB_COMPRESSION_TYPE,
blob_compression_type, exec_state_)) {
cf_opts->blob_compression_type = blob_compression_type;
}
int compression_max_dict_bytes;
if (ParseIntOption(option_map_, ARG_COMPRESSION_MAX_DICT_BYTES,
compression_max_dict_bytes, exec_state_)) {
if (compression_max_dict_bytes >= 0) {
cf_opts->compression_opts.max_dict_bytes = compression_max_dict_bytes;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_COMPRESSION_MAX_DICT_BYTES + " must be >= 0.");
}
}
int write_buffer_size;
if (ParseIntOption(option_map_, ARG_WRITE_BUFFER_SIZE, write_buffer_size,
exec_state_)) {
if (write_buffer_size > 0) {
cf_opts->write_buffer_size = write_buffer_size;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(ARG_WRITE_BUFFER_SIZE +
" must be > 0.");
}
}
int file_size;
if (ParseIntOption(option_map_, ARG_FILE_SIZE, file_size, exec_state_)) {
if (file_size > 0) {
cf_opts->target_file_size_base = file_size;
} else {
exec_state_ =
LDBCommandExecuteResult::Failed(ARG_FILE_SIZE + " must be > 0.");
}
}
int fix_prefix_len;
if (ParseIntOption(option_map_, ARG_FIX_PREFIX_LEN, fix_prefix_len,
exec_state_)) {
if (fix_prefix_len > 0) {
cf_opts->prefix_extractor.reset(
NewFixedPrefixTransform(static_cast<size_t>(fix_prefix_len)));
} else {
exec_state_ =
LDBCommandExecuteResult::Failed(ARG_FIX_PREFIX_LEN + " must be > 0.");
}
}
}
// First, initializes the options state using the OPTIONS file when enabled.
// Second, overrides the options according to the CLI arguments and the
// specific subcommand being run.
void LDBCommand::PrepareOptions() {
std::vector<ColumnFamilyDescriptor> column_families_from_options;
if (!create_if_missing_ && try_load_options_) {
config_options_.env = options_.env;
Status s = LoadLatestOptions(config_options_, db_path_, &options_,
&column_families_from_options);
if (!s.ok() && !s.IsNotFound()) {
// Option file exists but load option file error.
std::string current_version = std::to_string(ROCKSDB_MAJOR) + "." +
std::to_string(ROCKSDB_MINOR) + "." +
std::to_string(ROCKSDB_PATCH);
std::string msg =
s.ToString() + "\nThis tool was built with version " +
current_version +
". If your db is in a different version, please try again "
"with option --" +
LDBCommand::ARG_IGNORE_UNKNOWN_OPTIONS + ".";
exec_state_ = LDBCommandExecuteResult::Failed(msg);
db_ = nullptr;
return;
}
if (!options_.wal_dir.empty()) {
if (options_.env->FileExists(options_.wal_dir).IsNotFound()) {
options_.wal_dir = db_path_;
fprintf(
stderr,
"wal_dir loaded from the option file doesn't exist. Ignore it.\n");
}
}
// If merge operator is not set, set a string append operator.
for (auto& cf_entry : column_families_from_options) {
if (!cf_entry.options.merge_operator) {
cf_entry.options.merge_operator =
MergeOperators::CreateStringAppendOperator(':');
}
}
}
if (options_.env == Env::Default()) {
options_.env = config_options_.env;
}
OverrideBaseOptions();
if (exec_state_.IsFailed()) {
return;
}
if (column_families_.empty()) {
// column_families not set. Either set it from MANIFEST or OPTIONS file.
if (column_families_from_options.empty()) {
// Reads the MANIFEST to figure out what column families exist. In this
// case, the option overrides from the CLI argument/specific subcommand
// apply to all column families.
std::vector<std::string> cf_list;
Status st = DB::ListColumnFamilies(options_, db_path_, &cf_list);
// It is possible the DB doesn't exist yet, for "create if not
// existing" case. The failure is ignored here. We rely on DB::Open()
// to give us the correct error message for problem with opening
// existing DB.
if (st.ok() && cf_list.size() > 1) {
// Ignore single column family DB.
for (const auto& cf_name : cf_list) {
column_families_.emplace_back(cf_name, options_);
}
}
} else {
SetColumnFamilies(&column_families_from_options);
}
}
if (!column_families_from_options.empty()) {
// We got column families from the OPTIONS file. In this case, the option
// overrides from the CLI argument/specific subcommand only apply to the
// column family specified by `--column_family_name`.
auto column_families_iter =
std::find_if(column_families_.begin(), column_families_.end(),
[this](const ColumnFamilyDescriptor& cf_desc) {
return cf_desc.name == column_family_name_;
});
if (column_families_iter == column_families_.end()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Non-existing column family " + column_family_name_);
return;
}
OverrideBaseCFOptions(&column_families_iter->options);
}
}
bool LDBCommand::ParseKeyValue(const std::string& line, std::string* key,
std::string* value, bool is_key_hex,
bool is_value_hex) {
size_t pos = line.find(DELIM);
if (pos != std::string::npos) {
*key = line.substr(0, pos);
*value = line.substr(pos + strlen(DELIM));
if (is_key_hex) {
*key = HexToString(*key);
}
if (is_value_hex) {
*value = HexToString(*value);
}
return true;
} else {
return false;
}
}
/**
* Make sure that ONLY the command-line options and flags expected by this
* command are specified on the command-line. Extraneous options are usually
* the result of user error.
* Returns true if all checks pass. Else returns false, and prints an
* appropriate error msg to stderr.
*/
bool LDBCommand::ValidateCmdLineOptions() {
for (auto itr = option_map_.begin(); itr != option_map_.end(); ++itr) {
if (std::find(valid_cmd_line_options_.begin(),
valid_cmd_line_options_.end(),
itr->first) == valid_cmd_line_options_.end()) {
fprintf(stderr, "Invalid command-line option %s\n", itr->first.c_str());
return false;
}
}
for (std::vector<std::string>::const_iterator itr = flags_.begin();
itr != flags_.end(); ++itr) {
if (std::find(valid_cmd_line_options_.begin(),
valid_cmd_line_options_.end(),
*itr) == valid_cmd_line_options_.end()) {
fprintf(stderr, "Invalid command-line flag %s\n", itr->c_str());
return false;
}
}
if (!NoDBOpen() && option_map_.find(ARG_DB) == option_map_.end() &&
option_map_.find(ARG_PATH) == option_map_.end()) {
fprintf(stderr, "Either %s or %s must be specified.\n", ARG_DB.c_str(),
ARG_PATH.c_str());
return false;
}
return true;
}
std::string LDBCommand::HexToString(const std::string& str) {
std::string result;
std::string::size_type len = str.length();
if (len < 2 || str[0] != '0' || str[1] != 'x') {
fprintf(stderr, "Invalid hex input %s. Must start with 0x\n", str.c_str());
throw "Invalid hex input";
}
if (!Slice(str.data() + 2, len - 2).DecodeHex(&result)) {
throw "Invalid hex input";
}
return result;
}
std::string LDBCommand::StringToHex(const std::string& str) {
std::string result("0x");
result.append(Slice(str).ToString(true));
return result;
}
std::string LDBCommand::PrintKeyValue(const std::string& key,
const std::string& timestamp,
const std::string& value, bool is_key_hex,
bool is_value_hex,
const Comparator* ucmp) {
std::string result;
result.append(is_key_hex ? StringToHex(key) : key);
if (!timestamp.empty()) {
result.append("|timestamp:");
result.append(ucmp->TimestampToString(timestamp));
}
result.append(DELIM);
result.append(is_value_hex ? StringToHex(value) : value);
return result;
}
std::string LDBCommand::PrintKeyValue(const std::string& key,
const std::string& timestamp,
const std::string& value, bool is_hex,
const Comparator* ucmp) {
return PrintKeyValue(key, timestamp, value, is_hex, is_hex, ucmp);
}
std::string LDBCommand::PrintKeyValueOrWideColumns(
const Slice& key, const Slice& timestamp, const Slice& value,
const WideColumns& wide_columns, bool is_key_hex, bool is_value_hex,
const Comparator* ucmp) {
if (wide_columns.empty() ||
WideColumnsHelper::HasDefaultColumnOnly(wide_columns)) {
return PrintKeyValue(key.ToString(), timestamp.ToString(), value.ToString(),
is_key_hex, is_value_hex, ucmp);
}
/*
// Sample plaintext output (first column is kDefaultWideColumnName)
key_1 ==> :foo attr_name1:bar attr_name2:baz
// Sample hex output (first column is kDefaultWideColumnName)
0x6669727374 ==> :0x68656C6C6F 0x617474725F6E616D6531:0x666F6F
*/
std::ostringstream oss;
WideColumnsHelper::DumpWideColumns(wide_columns, oss, is_value_hex);
return PrintKeyValue(key.ToString(), timestamp.ToString(), oss.str().c_str(),
is_key_hex, false,
ucmp); // is_value_hex_ is already honored in oss.
// avoid double-hexing it.
}
std::string LDBCommand::HelpRangeCmdArgs() {
std::ostringstream str_stream;
str_stream << " ";
str_stream << "[--" << ARG_FROM << "] ";
str_stream << "[--" << ARG_TO << "] ";
return str_stream.str();
}
bool LDBCommand::IsKeyHex(const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags) {
return (IsFlagPresent(flags, ARG_HEX) || IsFlagPresent(flags, ARG_KEY_HEX) ||
ParseBooleanOption(options, ARG_HEX, false) ||
ParseBooleanOption(options, ARG_KEY_HEX, false));
}
bool LDBCommand::IsValueHex(const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags) {
return (IsFlagPresent(flags, ARG_HEX) ||
IsFlagPresent(flags, ARG_VALUE_HEX) ||
ParseBooleanOption(options, ARG_HEX, false) ||
ParseBooleanOption(options, ARG_VALUE_HEX, false));
}
bool LDBCommand::IsTryLoadOptions(
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags) {
if (IsFlagPresent(flags, ARG_TRY_LOAD_OPTIONS)) {
return true;
}
// if `DB` is specified and not explicitly to create a new db, default
// `try_load_options` to true. The user could still disable that by set
// `try_load_options=false`.
// Note: Opening as TTL DB doesn't support `try_load_options`, so it's default
// to false. TODO: TTL_DB may need to fix that, otherwise it's unable to open
// DB which has incompatible setting with default options.
bool default_val = (options.find(ARG_DB) != options.end()) &&
!IsFlagPresent(flags, ARG_CREATE_IF_MISSING) &&
!IsFlagPresent(flags, ARG_TTL);
return ParseBooleanOption(options, ARG_TRY_LOAD_OPTIONS, default_val);
}
bool LDBCommand::ParseBooleanOption(
const std::map<std::string, std::string>& options,
const std::string& option, bool default_val) {
auto itr = options.find(option);
if (itr != options.end()) {
std::string option_val = itr->second;
return StringToBool(itr->second);
}
return default_val;
}
bool LDBCommand::StringToBool(std::string val) {
std::transform(val.begin(), val.end(), val.begin(),
[](char ch) -> char { return (char)::tolower(ch); });
if (val == "true") {
return true;
} else if (val == "false") {
return false;
} else {
throw "Invalid value for boolean argument";
}
}
CompactorCommand::CompactorCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_FROM, ARG_TO, ARG_HEX, ARG_KEY_HEX,
ARG_VALUE_HEX, ARG_TTL})),
null_from_(true),
null_to_(true) {
auto itr = options.find(ARG_FROM);
if (itr != options.end()) {
null_from_ = false;
from_ = itr->second;
}
itr = options.find(ARG_TO);
if (itr != options.end()) {
null_to_ = false;
to_ = itr->second;
}
if (is_key_hex_) {
if (!null_from_) {
from_ = HexToString(from_);
}
if (!null_to_) {
to_ = HexToString(to_);
}
}
}
void CompactorCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(CompactorCommand::Name());
ret.append(HelpRangeCmdArgs());
ret.append("\n");
}
void CompactorCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Slice* begin = nullptr;
Slice* end = nullptr;
if (!null_from_) {
begin = new Slice(from_);
}
if (!null_to_) {
end = new Slice(to_);
}
CompactRangeOptions cro;
cro.bottommost_level_compaction = BottommostLevelCompaction::kForceOptimized;
Status s = db_->CompactRange(cro, GetCfHandle(), begin, end);
if (!s.ok()) {
std::stringstream oss;
oss << "Compaction failed: " << s.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
} else {
exec_state_ = LDBCommandExecuteResult::Succeed("");
}
delete begin;
delete end;
}
// ---------------------------------------------------------------------------
const std::string DBLoaderCommand::ARG_DISABLE_WAL = "disable_wal";
const std::string DBLoaderCommand::ARG_BULK_LOAD = "bulk_load";
const std::string DBLoaderCommand::ARG_COMPACT = "compact";
DBLoaderCommand::DBLoaderCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(
options, flags, false,
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX, ARG_FROM,
ARG_TO, ARG_CREATE_IF_MISSING, ARG_DISABLE_WAL,
ARG_BULK_LOAD, ARG_COMPACT})),
disable_wal_(false),
bulk_load_(false),
compact_(false) {
create_if_missing_ = IsFlagPresent(flags, ARG_CREATE_IF_MISSING);
disable_wal_ = IsFlagPresent(flags, ARG_DISABLE_WAL);
bulk_load_ = IsFlagPresent(flags, ARG_BULK_LOAD);
compact_ = IsFlagPresent(flags, ARG_COMPACT);
}
void DBLoaderCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DBLoaderCommand::Name());
ret.append(" [--" + ARG_CREATE_IF_MISSING + "]");
ret.append(" [--" + ARG_DISABLE_WAL + "]");
ret.append(" [--" + ARG_BULK_LOAD + "]");
ret.append(" [--" + ARG_COMPACT + "]");
ret.append("\n");
}
void DBLoaderCommand::OverrideBaseOptions() {
LDBCommand::OverrideBaseOptions();
options_.create_if_missing = create_if_missing_;
if (bulk_load_) {
options_.PrepareForBulkLoad();
}
}
void DBLoaderCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
WriteOptions write_options;
if (disable_wal_) {
write_options.disableWAL = true;
}
int bad_lines = 0;
std::string line;
// prefer ifstream getline performance vs that from std::cin istream
std::ifstream ifs_stdin("/dev/stdin");
std::istream* istream_p = ifs_stdin.is_open() ? &ifs_stdin : &std::cin;
Status s;
while (s.ok() && getline(*istream_p, line, '\n')) {
std::string key;
std::string value;
if (ParseKeyValue(line, &key, &value, is_key_hex_, is_value_hex_)) {
s = db_->Put(write_options, GetCfHandle(), Slice(key), Slice(value));
} else if (0 == line.find("Keys in range:")) {
// ignore this line
} else if (0 == line.find("Created bg thread 0x")) {
// ignore this line
} else {
bad_lines++;
}
}
if (bad_lines > 0) {
std::cout << "Warning: " << bad_lines << " bad lines ignored." << std::endl;
}
if (!s.ok()) {
std::stringstream oss;
oss << "Load failed: " << s.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
}
if (compact_ && s.ok()) {
s = db_->CompactRange(CompactRangeOptions(), GetCfHandle(), nullptr,
nullptr);
}
if (!s.ok()) {
std::stringstream oss;
oss << "Compaction failed: " << s.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
}
}
// ----------------------------------------------------------------------------
namespace {
void DumpManifestFile(Options options, std::string file, bool verbose, bool hex,
bool json,
const std::vector<ColumnFamilyDescriptor>& cf_descs) {
EnvOptions sopt;
std::string dbname("dummy");
std::shared_ptr<Cache> tc(NewLRUCache(options.max_open_files - 10,
options.table_cache_numshardbits));
// Notice we are using the default options not through SanitizeOptions(),
// if VersionSet::DumpManifest() depends on any option done by
// SanitizeOptions(), we need to initialize it manually.
options.db_paths.emplace_back("dummy", 0);
options.num_levels = 64;
WriteController wc(options.delayed_write_rate);
WriteBufferManager wb(options.db_write_buffer_size);
ImmutableDBOptions immutable_db_options(options);
VersionSet versions(dbname, &immutable_db_options, sopt, tc.get(), &wb, &wc,
/*block_cache_tracer=*/nullptr, /*io_tracer=*/nullptr,
/*db_id=*/"", /*db_session_id=*/"",
options.daily_offpeak_time_utc,
/*error_handler=*/nullptr, /*read_only=*/true);
Status s = versions.DumpManifest(options, file, verbose, hex, json, cf_descs);
if (!s.ok()) {
fprintf(stderr, "Error in processing file %s %s\n", file.c_str(),
s.ToString().c_str());
}
}
} // namespace
const std::string ManifestDumpCommand::ARG_VERBOSE = "verbose";
const std::string ManifestDumpCommand::ARG_JSON = "json";
const std::string ManifestDumpCommand::ARG_PATH = "path";
void ManifestDumpCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(ManifestDumpCommand::Name());
ret.append(" [--" + ARG_VERBOSE + "]");
ret.append(" [--" + ARG_JSON + "]");
ret.append(" [--" + ARG_PATH + "=<path_to_manifest_file>]");
ret.append("\n");
}
ManifestDumpCommand::ManifestDumpCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(
options, flags, false,
BuildCmdLineOptions({ARG_VERBOSE, ARG_PATH, ARG_HEX, ARG_JSON})),
verbose_(false),
json_(false) {
verbose_ = IsFlagPresent(flags, ARG_VERBOSE);
json_ = IsFlagPresent(flags, ARG_JSON);
auto itr = options.find(ARG_PATH);
if (itr != options.end()) {
path_ = itr->second;
if (path_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed("--path: missing pathname");
}
}
}
void ManifestDumpCommand::DoCommand() {
PrepareOptions();
std::string manifestfile;
if (!path_.empty()) {
manifestfile = path_;
} else {
// We need to find the manifest file by searching the directory
// containing the db for files of the form MANIFEST_[0-9]+
std::vector<std::string> files;
Status s = options_.env->GetChildren(db_path_, &files);
if (!s.ok()) {
std::string err_msg = s.ToString();
err_msg.append(": Failed to list the content of ");
err_msg.append(db_path_);
exec_state_ = LDBCommandExecuteResult::Failed(err_msg);
return;
}
const std::string kManifestNamePrefix = "MANIFEST-";
std::string matched_file;
#ifdef OS_WIN
const char kPathDelim = '\\';
#else
const char kPathDelim = '/';
#endif
for (const auto& file_path : files) {
// Some Env::GetChildren() return absolute paths. Some directories' path
// end with path delim, e.g. '/' or '\\'.
size_t pos = file_path.find_last_of(kPathDelim);
if (pos == file_path.size() - 1) {
continue;
}
std::string fname;
if (pos != std::string::npos) {
// Absolute path.
fname.assign(file_path, pos + 1, file_path.size() - pos - 1);
} else {
fname = file_path;
}
uint64_t file_num = 0;
FileType file_type = kWalFile; // Just for initialization
if (ParseFileName(fname, &file_num, &file_type) &&
file_type == kDescriptorFile) {
if (!matched_file.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Multiple MANIFEST files found; use --path to select one");
return;
} else {
matched_file.swap(fname);
}
}
}
if (matched_file.empty()) {
std::string err_msg("No MANIFEST found in ");
err_msg.append(db_path_);
exec_state_ = LDBCommandExecuteResult::Failed(err_msg);
return;
}
if (db_path_.back() != '/') {
db_path_.append("/");
}
manifestfile = db_path_ + matched_file;
}
if (verbose_) {
fprintf(stdout, "Processing Manifest file %s\n", manifestfile.c_str());
}
DumpManifestFile(options_, manifestfile, verbose_, is_key_hex_, json_,
column_families_);
if (verbose_) {
fprintf(stdout, "Processing Manifest file %s done\n", manifestfile.c_str());
}
}
// ----------------------------------------------------------------------------
namespace {
Status GetLiveFilesChecksumInfoFromVersionSet(Options options,
const std::string& db_path,
FileChecksumList* checksum_list) {
EnvOptions sopt;
Status s;
std::string dbname(db_path);
std::shared_ptr<Cache> tc(NewLRUCache(options.max_open_files - 10,
options.table_cache_numshardbits));
// Notice we are using the default options not through SanitizeOptions(),
// if VersionSet::GetLiveFilesChecksumInfo depends on any option done by
// SanitizeOptions(), we need to initialize it manually.
options.db_paths.emplace_back(db_path, 0);
options.num_levels = 64;
WriteController wc(options.delayed_write_rate);
WriteBufferManager wb(options.db_write_buffer_size);
ImmutableDBOptions immutable_db_options(options);
VersionSet versions(dbname, &immutable_db_options, sopt, tc.get(), &wb, &wc,
/*block_cache_tracer=*/nullptr, /*io_tracer=*/nullptr,
/*db_id=*/"", /*db_session_id=*/"",
options.daily_offpeak_time_utc,
/*error_handler=*/nullptr, /*read_only=*/true);
std::vector<std::string> cf_name_list;
s = versions.ListColumnFamilies(&cf_name_list, db_path,
immutable_db_options.fs.get());
if (s.ok()) {
std::vector<ColumnFamilyDescriptor> cf_list;
for (const auto& name : cf_name_list) {
cf_list.emplace_back(name, ColumnFamilyOptions(options));
}
s = versions.Recover(cf_list, true);
}
if (s.ok()) {
s = versions.GetLiveFilesChecksumInfo(checksum_list);
}
return s;
}
} // namespace
const std::string FileChecksumDumpCommand::ARG_PATH = "path";
void FileChecksumDumpCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(FileChecksumDumpCommand::Name());
ret.append(" [--" + ARG_PATH + "=<path_to_manifest_file>]");
ret.append("\n");
}
FileChecksumDumpCommand::FileChecksumDumpCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_PATH, ARG_HEX})) {
auto itr = options.find(ARG_PATH);
if (itr != options.end()) {
path_ = itr->second;
if (path_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed("--path: missing pathname");
}
}
is_checksum_hex_ = IsFlagPresent(flags, ARG_HEX);
}
void FileChecksumDumpCommand::DoCommand() {
PrepareOptions();
// print out the checksum information in the following format:
// sst file number, checksum function name, checksum value
// sst file number, checksum function name, checksum value
// ......
std::unique_ptr<FileChecksumList> checksum_list(NewFileChecksumList());
Status s = GetLiveFilesChecksumInfoFromVersionSet(options_, db_path_,
checksum_list.get());
if (s.ok() && checksum_list != nullptr) {
std::vector<uint64_t> file_numbers;
std::vector<std::string> checksums;
std::vector<std::string> checksum_func_names;
s = checksum_list->GetAllFileChecksums(&file_numbers, &checksums,
&checksum_func_names);
if (s.ok()) {
for (size_t i = 0; i < file_numbers.size(); i++) {
assert(i < file_numbers.size());
assert(i < checksums.size());
assert(i < checksum_func_names.size());
std::string checksum;
if (is_checksum_hex_) {
checksum = StringToHex(checksums[i]);
} else {
checksum = std::move(checksums[i]);
}
fprintf(stdout, "%" PRId64 ", %s, %s\n", file_numbers[i],
checksum_func_names[i].c_str(), checksum.c_str());
}
fprintf(stdout, "Print SST file checksum information finished \n");
}
}
if (!s.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(s.ToString());
}
}
// ----------------------------------------------------------------------------
void GetPropertyCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(GetPropertyCommand::Name());
ret.append(" <property_name>");
ret.append("\n");
}
GetPropertyCommand::GetPropertyCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true, BuildCmdLineOptions({})) {
if (params.size() != 1) {
exec_state_ =
LDBCommandExecuteResult::Failed("property name must be specified");
} else {
property_ = params[0];
}
}
void GetPropertyCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
std::map<std::string, std::string> value_map;
std::string value;
// Rather than having different ldb command for map properties vs. string
// properties, we simply try Map property first. (This order only chosen
// because I prefer the map-style output for
// "rocksdb.aggregated-table-properties".)
if (db_->GetMapProperty(GetCfHandle(), property_, &value_map)) {
if (value_map.empty()) {
fprintf(stdout, "%s: <empty map>\n", property_.c_str());
} else {
for (auto& e : value_map) {
fprintf(stdout, "%s.%s: %s\n", property_.c_str(), e.first.c_str(),
e.second.c_str());
}
}
} else if (db_->GetProperty(GetCfHandle(), property_, &value)) {
fprintf(stdout, "%s: %s\n", property_.c_str(), value.c_str());
} else {
exec_state_ =
LDBCommandExecuteResult::Failed("failed to get property: " + property_);
}
}
// ----------------------------------------------------------------------------
void ListColumnFamiliesCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(ListColumnFamiliesCommand::Name());
ret.append("\n");
}
ListColumnFamiliesCommand::ListColumnFamiliesCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false, BuildCmdLineOptions({})) {}
void ListColumnFamiliesCommand::DoCommand() {
PrepareOptions();
std::vector<std::string> column_families;
Status s = DB::ListColumnFamilies(options_, db_path_, &column_families);
if (!s.ok()) {
fprintf(stderr, "Error in processing db %s %s\n", db_path_.c_str(),
s.ToString().c_str());
} else {
fprintf(stdout, "Column families in %s: \n{", db_path_.c_str());
bool first = true;
for (const auto& cf : column_families) {
if (!first) {
fprintf(stdout, ", ");
}
first = false;
fprintf(stdout, "%s", cf.c_str());
}
fprintf(stdout, "}\n");
}
}
void CreateColumnFamilyCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(CreateColumnFamilyCommand::Name());
ret.append(" --db=<db_path> <new_column_family_name>");
ret.append("\n");
}
CreateColumnFamilyCommand::CreateColumnFamilyCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true, {ARG_DB}) {
if (params.size() != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"new column family name must be specified");
} else {
new_cf_name_ = params[0];
}
}
void CreateColumnFamilyCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
ColumnFamilyHandle* new_cf_handle = nullptr;
Status st = db_->CreateColumnFamily(options_, new_cf_name_, &new_cf_handle);
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
"Fail to create new column family: " + st.ToString());
}
delete new_cf_handle;
CloseDB();
}
void DropColumnFamilyCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DropColumnFamilyCommand::Name());
ret.append(" --db=<db_path> <column_family_name_to_drop>");
ret.append("\n");
}
DropColumnFamilyCommand::DropColumnFamilyCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true, {ARG_DB}) {
if (params.size() != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"The name of column family to drop must be specified");
} else {
cf_name_to_drop_ = params[0];
}
}
void DropColumnFamilyCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
auto iter = cf_handles_.find(cf_name_to_drop_);
if (iter == cf_handles_.end()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Column family: " + cf_name_to_drop_ + " doesn't exist in db.");
return;
}
ColumnFamilyHandle* cf_handle_to_drop = iter->second;
Status st = db_->DropColumnFamily(cf_handle_to_drop);
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
"Fail to drop column family: " + st.ToString());
}
CloseDB();
}
// ----------------------------------------------------------------------------
namespace {
// This function only called when it's the sane case of >1 buckets in time-range
// Also called only when timekv falls between ttl_start and ttl_end provided
void IncBucketCounts(std::vector<uint64_t>& bucket_counts, int ttl_start,
int time_range, int bucket_size, int timekv,
int num_buckets) {
#ifdef NDEBUG
(void)time_range;
(void)num_buckets;
#endif
assert(time_range > 0 && timekv >= ttl_start && bucket_size > 0 &&
timekv < (ttl_start + time_range) && num_buckets > 1);
int bucket = (timekv - ttl_start) / bucket_size;
bucket_counts[bucket]++;
}
void PrintBucketCounts(const std::vector<uint64_t>& bucket_counts,
int ttl_start, int ttl_end, int bucket_size,
int num_buckets) {
int time_point = ttl_start;
for (int i = 0; i < num_buckets - 1; i++, time_point += bucket_size) {
fprintf(stdout, "Keys in range %s to %s : %lu\n",
TimeToHumanString(time_point).c_str(),
TimeToHumanString(time_point + bucket_size).c_str(),
(unsigned long)bucket_counts[i]);
}
fprintf(stdout, "Keys in range %s to %s : %lu\n",
TimeToHumanString(time_point).c_str(),
TimeToHumanString(ttl_end).c_str(),
(unsigned long)bucket_counts[num_buckets - 1]);
}
} // namespace
const std::string InternalDumpCommand::ARG_COUNT_ONLY = "count_only";
const std::string InternalDumpCommand::ARG_COUNT_DELIM = "count_delim";
const std::string InternalDumpCommand::ARG_STATS = "stats";
const std::string InternalDumpCommand::ARG_INPUT_KEY_HEX = "input_key_hex";
InternalDumpCommand::InternalDumpCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions(
{ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX, ARG_FROM, ARG_TO,
ARG_MAX_KEYS, ARG_COUNT_ONLY, ARG_COUNT_DELIM, ARG_STATS,
ARG_INPUT_KEY_HEX, ARG_DECODE_BLOB_INDEX})),
has_from_(false),
has_to_(false),
max_keys_(-1),
delim_("."),
count_only_(false),
count_delim_(false),
print_stats_(false),
is_input_key_hex_(false),
decode_blob_index_(false) {
has_from_ = ParseStringOption(options, ARG_FROM, &from_);
has_to_ = ParseStringOption(options, ARG_TO, &to_);
ParseIntOption(options, ARG_MAX_KEYS, max_keys_, exec_state_);
auto itr = options.find(ARG_COUNT_DELIM);
if (itr != options.end()) {
delim_ = itr->second;
count_delim_ = true;
// fprintf(stdout,"delim = %c\n",delim_[0]);
} else {
count_delim_ = IsFlagPresent(flags, ARG_COUNT_DELIM);
delim_ = ".";
}
print_stats_ = IsFlagPresent(flags, ARG_STATS);
count_only_ = IsFlagPresent(flags, ARG_COUNT_ONLY);
is_input_key_hex_ = IsFlagPresent(flags, ARG_INPUT_KEY_HEX);
decode_blob_index_ = IsFlagPresent(flags, ARG_DECODE_BLOB_INDEX);
if (is_input_key_hex_) {
if (has_from_) {
from_ = HexToString(from_);
}
if (has_to_) {
to_ = HexToString(to_);
}
}
}
void InternalDumpCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(InternalDumpCommand::Name());
ret.append(HelpRangeCmdArgs());
ret.append(" [--" + ARG_INPUT_KEY_HEX + "]");
ret.append(" [--" + ARG_MAX_KEYS + "=<N>]");
ret.append(" [--" + ARG_COUNT_ONLY + "]");
ret.append(" [--" + ARG_COUNT_DELIM + "=<char>]");
ret.append(" [--" + ARG_STATS + "]");
ret.append(" [--" + ARG_DECODE_BLOB_INDEX + "]");
ret.append("\n");
}
void InternalDumpCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
ColumnFamilyHandle* cfh = GetCfHandle();
const Comparator* ucmp = cfh->GetComparator();
size_t ts_sz = ucmp->timestamp_size();
if (print_stats_) {
std::string stats;
if (db_->GetProperty(cfh, "rocksdb.stats", &stats)) {
fprintf(stdout, "%s\n", stats.c_str());
}
}
// Cast as DBImpl to get internal iterator
std::vector<KeyVersion> key_versions;
Status st = GetAllKeyVersions(db_, GetCfHandle(), from_, to_, max_keys_,
&key_versions);
if (!st.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
return;
}
std::string rtype1, rtype2, row, val;
rtype2 = "";
uint64_t c = 0;
uint64_t s1 = 0, s2 = 0;
long long count = 0;
for (auto& key_version : key_versions) {
ValueType value_type = static_cast<ValueType>(key_version.type);
InternalKey ikey(key_version.user_key, key_version.sequence, value_type);
Slice user_key_without_ts = ikey.user_key();
if (ts_sz > 0) {
user_key_without_ts.remove_suffix(ts_sz);
}
if (has_to_ && ucmp->Compare(user_key_without_ts, to_) == 0) {
// GetAllKeyVersions() includes keys with user key `to_`, but idump has
// traditionally excluded such keys.
break;
}
++count;
int k;
if (count_delim_) {
rtype1 = "";
s1 = 0;
row = ikey.Encode().ToString();
val = key_version.value;
for (k = 0; row[k] != '\x01' && row[k] != '\0'; k++) {
s1++;
}
for (k = 0; val[k] != '\x01' && val[k] != '\0'; k++) {
s1++;
}
for (int j = 0; row[j] != delim_[0] && row[j] != '\0' && row[j] != '\x01';
j++) {
rtype1 += row[j];
}
if (rtype2.compare("") && rtype2.compare(rtype1) != 0) {
fprintf(stdout, "%s => count:%" PRIu64 "\tsize:%" PRIu64 "\n",
rtype2.c_str(), c, s2);
c = 1;
s2 = s1;
rtype2 = rtype1;
} else {
c++;
s2 += s1;
rtype2 = rtype1;
}
}
if (!count_only_ && !count_delim_) {
std::string key = ikey.DebugString(is_key_hex_, ucmp);
Slice value(key_version.value);
if (!decode_blob_index_ || value_type != kTypeBlobIndex) {
if (value_type == kTypeWideColumnEntity) {
std::ostringstream oss;
const Status s = WideColumnsHelper::DumpSliceAsWideColumns(
value, oss, is_value_hex_);
if (!s.ok()) {
fprintf(stderr, "%s => error deserializing wide columns\n",
key.c_str());
} else {
fprintf(stdout, "%s => %s\n", key.c_str(), oss.str().c_str());
}
} else {
fprintf(stdout, "%s => %s\n", key.c_str(),
value.ToString(is_value_hex_).c_str());
}
} else {
BlobIndex blob_index;
const Status s = blob_index.DecodeFrom(value);
if (!s.ok()) {
fprintf(stderr, "%s => error decoding blob index =>\n", key.c_str());
} else {
fprintf(stdout, "%s => %s\n", key.c_str(),
blob_index.DebugString(is_value_hex_).c_str());
}
}
}
// Terminate if maximum number of keys have been dumped
if (max_keys_ > 0 && count >= max_keys_) {
break;
}
}
if (count_delim_) {
fprintf(stdout, "%s => count:%" PRIu64 "\tsize:%" PRIu64 "\n",
rtype2.c_str(), c, s2);
} else {
fprintf(stdout, "Internal keys in range: %lld\n", count);
}
}
const std::string DBDumperCommand::ARG_COUNT_ONLY = "count_only";
const std::string DBDumperCommand::ARG_COUNT_DELIM = "count_delim";
const std::string DBDumperCommand::ARG_STATS = "stats";
const std::string DBDumperCommand::ARG_TTL_BUCKET = "bucket";
DBDumperCommand::DBDumperCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(
options, flags, true,
BuildCmdLineOptions(
{ARG_TTL, ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX, ARG_FROM, ARG_TO,
ARG_MAX_KEYS, ARG_COUNT_ONLY, ARG_COUNT_DELIM, ARG_STATS,
ARG_TTL_START, ARG_TTL_END, ARG_TTL_BUCKET, ARG_TIMESTAMP,
ARG_PATH, ARG_DECODE_BLOB_INDEX, ARG_DUMP_UNCOMPRESSED_BLOBS})),
null_from_(true),
null_to_(true),
max_keys_(-1),
count_only_(false),
count_delim_(false),
print_stats_(false),
decode_blob_index_(false) {
auto itr = options.find(ARG_FROM);
if (itr != options.end()) {
null_from_ = false;
from_ = itr->second;
}
itr = options.find(ARG_TO);
if (itr != options.end()) {
null_to_ = false;
to_ = itr->second;
}
itr = options.find(ARG_MAX_KEYS);
if (itr != options.end()) {
try {
#if defined(CYGWIN)
max_keys_ = strtol(itr->second.c_str(), 0, 10);
#else
max_keys_ = std::stoi(itr->second);
#endif
} catch (const std::invalid_argument&) {
exec_state_ = LDBCommandExecuteResult::Failed(ARG_MAX_KEYS +
" has an invalid value");
} catch (const std::out_of_range&) {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_MAX_KEYS + " has a value out-of-range");
}
}
itr = options.find(ARG_COUNT_DELIM);
if (itr != options.end()) {
delim_ = itr->second;
count_delim_ = true;
} else {
count_delim_ = IsFlagPresent(flags, ARG_COUNT_DELIM);
delim_ = ".";
}
print_stats_ = IsFlagPresent(flags, ARG_STATS);
count_only_ = IsFlagPresent(flags, ARG_COUNT_ONLY);
decode_blob_index_ = IsFlagPresent(flags, ARG_DECODE_BLOB_INDEX);
dump_uncompressed_blobs_ = IsFlagPresent(flags, ARG_DUMP_UNCOMPRESSED_BLOBS);
if (is_key_hex_) {
if (!null_from_) {
from_ = HexToString(from_);
}
if (!null_to_) {
to_ = HexToString(to_);
}
}
itr = options.find(ARG_PATH);
if (itr != options.end()) {
path_ = itr->second;
if (db_path_.empty()) {
db_path_ = path_;
}
}
}
void DBDumperCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DBDumperCommand::Name());
ret.append(HelpRangeCmdArgs());
ret.append(" [--" + ARG_TTL + "]");
ret.append(" [--" + ARG_MAX_KEYS + "=<N>]");
ret.append(" [--" + ARG_TIMESTAMP + "]");
ret.append(" [--" + ARG_COUNT_ONLY + "]");
ret.append(" [--" + ARG_COUNT_DELIM + "=<char>]");
ret.append(" [--" + ARG_STATS + "]");
ret.append(" [--" + ARG_TTL_BUCKET + "=<N>]");
ret.append(" [--" + ARG_TTL_START + "=<N>:- is inclusive]");
ret.append(" [--" + ARG_TTL_END + "=<N>:- is exclusive]");
ret.append(" [--" + ARG_PATH + "=<path_to_a_file>]");
ret.append(" [--" + ARG_DECODE_BLOB_INDEX + "]");
ret.append(" [--" + ARG_DUMP_UNCOMPRESSED_BLOBS + "]");
ret.append("\n");
}
/**
* Handles two separate cases:
*
* 1) --db is specified - just dump the database.
*
* 2) --path is specified - determine based on file extension what dumping
* function to call. Please note that we intentionally use the extension
* and avoid probing the file contents under the assumption that renaming
* the files is not a supported scenario.
*
*/
void DBDumperCommand::DoCommand() {
if (!db_) {
assert(!path_.empty());
std::string fileName = GetFileNameFromPath(path_);
uint64_t number;
FileType type;
exec_state_ = LDBCommandExecuteResult::Succeed("");
if (!ParseFileName(fileName, &number, &type)) {
exec_state_ =
LDBCommandExecuteResult::Failed("Can't parse file type: " + path_);
return;
}
switch (type) {
case kWalFile:
// TODO(myabandeh): allow configuring is_write_commited
DumpWalFiles(options_, path_, /* print_header_ */ true,
/* print_values_ */ true,
/* only_print_seqno_gaps */ false,
true /* is_write_commited */, ucmps_, &exec_state_);
break;
case kTableFile:
DumpSstFile(options_, path_, is_key_hex_, /* show_properties */ true,
decode_blob_index_, from_, to_);
break;
case kDescriptorFile:
DumpManifestFile(options_, path_, /* verbose_ */ false, is_key_hex_,
/* json_ */ false, column_families_);
break;
case kBlobFile:
DumpBlobFile(path_, is_key_hex_, is_value_hex_,
dump_uncompressed_blobs_);
break;
default:
exec_state_ = LDBCommandExecuteResult::Failed(
"File type not supported: " + path_);
break;
}
} else {
DoDumpCommand();
}
}
void DBDumperCommand::DoDumpCommand() {
assert(nullptr != db_);
assert(path_.empty());
// Parse command line args
uint64_t count = 0;
if (print_stats_) {
std::string stats;
if (db_->GetProperty("rocksdb.stats", &stats)) {
fprintf(stdout, "%s\n", stats.c_str());
}
}
// Setup key iterator
ReadOptions scan_read_opts;
Slice read_timestamp;
ColumnFamilyHandle* cfh = GetCfHandle();
const Comparator* ucmp = cfh->GetComparator();
size_t ts_sz = ucmp->timestamp_size();
if (ucmp->timestamp_size() > 0) {
read_timestamp = ucmp->GetMaxTimestamp();
scan_read_opts.timestamp = &read_timestamp;
}
scan_read_opts.total_order_seek = true;
Iterator* iter = db_->NewIterator(scan_read_opts, cfh);
Status st = iter->status();
if (!st.ok()) {
exec_state_ =
LDBCommandExecuteResult::Failed("Iterator error." + st.ToString());
}
if (!null_from_) {
iter->Seek(from_);
} else {
iter->SeekToFirst();
}
int max_keys = max_keys_;
int ttl_start;
if (!ParseIntOption(option_map_, ARG_TTL_START, ttl_start, exec_state_)) {
ttl_start = DBWithTTLImpl::kMinTimestamp; // TTL introduction time
}
int ttl_end;
if (!ParseIntOption(option_map_, ARG_TTL_END, ttl_end, exec_state_)) {
ttl_end = DBWithTTLImpl::kMaxTimestamp; // Max time allowed by TTL feature
}
if (ttl_end < ttl_start) {
fprintf(stderr, "Error: End time can't be less than start time\n");
delete iter;
return;
}
int time_range = ttl_end - ttl_start;
int bucket_size;
if (!ParseIntOption(option_map_, ARG_TTL_BUCKET, bucket_size, exec_state_) ||
bucket_size <= 0) {
bucket_size = time_range; // Will have just 1 bucket by default
}
// cretaing variables for row count of each type
std::string rtype1, rtype2, row, val;
rtype2 = "";
uint64_t c = 0;
uint64_t s1 = 0, s2 = 0;
// At this point, bucket_size=0 => time_range=0
int num_buckets = (bucket_size >= time_range)
? 1
: ((time_range + bucket_size - 1) / bucket_size);
std::vector<uint64_t> bucket_counts(num_buckets, 0);
if (is_db_ttl_ && !count_only_ && timestamp_ && !count_delim_) {
fprintf(stdout, "Dumping key-values from %s to %s\n",
TimeToHumanString(ttl_start).c_str(),
TimeToHumanString(ttl_end).c_str());
}
HistogramImpl vsize_hist;
for (; iter->Valid(); iter->Next()) {
int rawtime = 0;
// If end marker was specified, we stop before it
if (!null_to_ && ucmp->Compare(iter->key(), to_) >= 0) {
break;
}
// Terminate if maximum number of keys have been dumped
if (max_keys == 0) {
break;
}
if (is_db_ttl_) {
TtlIterator* it_ttl = static_cast_with_check<TtlIterator>(iter);
rawtime = it_ttl->ttl_timestamp();
if (rawtime < ttl_start || rawtime >= ttl_end) {
continue;
}
}
if (max_keys > 0) {
--max_keys;
}
if (is_db_ttl_ && num_buckets > 1) {
IncBucketCounts(bucket_counts, ttl_start, time_range, bucket_size,
rawtime, num_buckets);
}
++count;
if (count_delim_) {
rtype1 = "";
row = iter->key().ToString();
val = iter->value().ToString();
s1 = row.size() + val.size();
for (int j = 0; row[j] != delim_[0] && row[j] != '\0'; j++) {
rtype1 += row[j];
}
if (rtype2.compare("") && rtype2.compare(rtype1) != 0) {
fprintf(stdout, "%s => count:%" PRIu64 "\tsize:%" PRIu64 "\n",
rtype2.c_str(), c, s2);
c = 1;
s2 = s1;
rtype2 = rtype1;
} else {
c++;
s2 += s1;
rtype2 = rtype1;
}
}
if (count_only_) {
vsize_hist.Add(iter->value().size());
}
if (!count_only_ && !count_delim_) {
if (is_db_ttl_ && timestamp_) {
fprintf(stdout, "%s ", TimeToHumanString(rawtime).c_str());
}
// (TODO) TTL Iterator does not support wide columns yet.
std::string str =
is_db_ttl_
? PrintKeyValue(iter->key().ToString(),
ts_sz == 0 ? "" : iter->timestamp().ToString(),
iter->value().ToString(), is_key_hex_,
is_value_hex_, ucmp)
: PrintKeyValueOrWideColumns(
iter->key(), ts_sz == 0 ? "" : iter->timestamp().ToString(),
iter->value(), iter->columns(), is_key_hex_, is_value_hex_,
ucmp);
fprintf(stdout, "%s\n", str.c_str());
}
}
if (num_buckets > 1 && is_db_ttl_) {
PrintBucketCounts(bucket_counts, ttl_start, ttl_end, bucket_size,
num_buckets);
} else if (count_delim_) {
fprintf(stdout, "%s => count:%" PRIu64 "\tsize:%" PRIu64 "\n",
rtype2.c_str(), c, s2);
} else {
fprintf(stdout, "Keys in range: %" PRIu64 "\n", count);
}
if (count_only_) {
fprintf(stdout, "Value size distribution: \n");
fprintf(stdout, "%s\n", vsize_hist.ToString().c_str());
}
// Clean up
delete iter;
}
const std::string ReduceDBLevelsCommand::ARG_NEW_LEVELS = "new_levels";
const std::string ReduceDBLevelsCommand::ARG_PRINT_OLD_LEVELS =
"print_old_levels";
ReduceDBLevelsCommand::ReduceDBLevelsCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_NEW_LEVELS, ARG_PRINT_OLD_LEVELS})),
old_levels_(1 << 7),
new_levels_(-1),
print_old_levels_(false) {
ParseIntOption(option_map_, ARG_NEW_LEVELS, new_levels_, exec_state_);
print_old_levels_ = IsFlagPresent(flags, ARG_PRINT_OLD_LEVELS);
if (new_levels_ <= 0) {
exec_state_ = LDBCommandExecuteResult::Failed(
" Use --" + ARG_NEW_LEVELS + " to specify a new level number\n");
}
}
std::vector<std::string> ReduceDBLevelsCommand::PrepareArgs(
const std::string& db_path, int new_levels, bool print_old_level) {
std::vector<std::string> ret;
ret.emplace_back("reduce_levels");
ret.push_back("--" + ARG_DB + "=" + db_path);
ret.push_back("--" + ARG_NEW_LEVELS + "=" + std::to_string(new_levels));
if (print_old_level) {
ret.push_back("--" + ARG_PRINT_OLD_LEVELS);
}
return ret;
}
void ReduceDBLevelsCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(ReduceDBLevelsCommand::Name());
ret.append(" --" + ARG_NEW_LEVELS + "=<New number of levels>");
ret.append(" [--" + ARG_PRINT_OLD_LEVELS + "]");
ret.append("\n");
}
void ReduceDBLevelsCommand::OverrideBaseCFOptions(
ColumnFamilyOptions* cf_opts) {
LDBCommand::OverrideBaseCFOptions(cf_opts);
cf_opts->num_levels = old_levels_;
cf_opts->max_bytes_for_level_multiplier_additional.resize(cf_opts->num_levels,
1);
// Disable size compaction
cf_opts->max_bytes_for_level_base = 1ULL << 50;
cf_opts->max_bytes_for_level_multiplier = 1;
}
Status ReduceDBLevelsCommand::GetOldNumOfLevels(Options& opt, int* levels) {
ImmutableDBOptions db_options(opt);
EnvOptions soptions;
std::shared_ptr<Cache> tc(
NewLRUCache(opt.max_open_files - 10, opt.table_cache_numshardbits));
const InternalKeyComparator cmp(opt.comparator);
WriteController wc(opt.delayed_write_rate);
WriteBufferManager wb(opt.db_write_buffer_size);
VersionSet versions(db_path_, &db_options, soptions, tc.get(), &wb, &wc,
/*block_cache_tracer=*/nullptr, /*io_tracer=*/nullptr,
/*db_id=*/"", /*db_session_id=*/"",
opt.daily_offpeak_time_utc,
/*error_handler=*/nullptr, /*read_only=*/true);
std::vector<ColumnFamilyDescriptor> dummy;
ColumnFamilyDescriptor dummy_descriptor(kDefaultColumnFamilyName,
ColumnFamilyOptions(opt));
dummy.push_back(dummy_descriptor);
// We rely the VersionSet::Recover to tell us the internal data structures
// in the db. And the Recover() should never do any change
// (like LogAndApply) to the manifest file.
Status st = versions.Recover(dummy);
if (!st.ok()) {
return st;
}
int max = -1;
auto default_cfd = versions.GetColumnFamilySet()->GetDefault();
for (int i = 0; i < default_cfd->NumberLevels(); i++) {
if (default_cfd->current()->storage_info()->NumLevelFiles(i)) {
max = i;
}
}
*levels = max + 1;
return st;
}
void ReduceDBLevelsCommand::DoCommand() {
if (new_levels_ <= 1) {
exec_state_ =
LDBCommandExecuteResult::Failed("Invalid number of levels.\n");
return;
}
Status st;
PrepareOptions();
int old_level_num = -1;
st = GetOldNumOfLevels(options_, &old_level_num);
if (!st.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
return;
}
if (print_old_levels_) {
fprintf(stdout, "The old number of levels in use is %d\n", old_level_num);
}
if (old_level_num <= new_levels_) {
return;
}
old_levels_ = old_level_num;
OpenDB();
if (exec_state_.IsFailed()) {
return;
}
assert(db_ != nullptr);
// Compact the whole DB to put all files to the highest level.
fprintf(stdout, "Compacting the db...\n");
st =
db_->CompactRange(CompactRangeOptions(), GetCfHandle(), nullptr, nullptr);
CloseDB();
if (st.ok()) {
EnvOptions soptions;
st = VersionSet::ReduceNumberOfLevels(db_path_, &options_, soptions,
new_levels_);
}
if (!st.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
return;
}
}
const std::string ChangeCompactionStyleCommand::ARG_OLD_COMPACTION_STYLE =
"old_compaction_style";
const std::string ChangeCompactionStyleCommand::ARG_NEW_COMPACTION_STYLE =
"new_compaction_style";
ChangeCompactionStyleCommand::ChangeCompactionStyleCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions(
{ARG_OLD_COMPACTION_STYLE, ARG_NEW_COMPACTION_STYLE})),
old_compaction_style_(-1),
new_compaction_style_(-1) {
ParseIntOption(option_map_, ARG_OLD_COMPACTION_STYLE, old_compaction_style_,
exec_state_);
if (old_compaction_style_ != kCompactionStyleLevel &&
old_compaction_style_ != kCompactionStyleUniversal) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Use --" + ARG_OLD_COMPACTION_STYLE + " to specify old compaction " +
"style. Check ldb help for proper compaction style value.\n");
return;
}
ParseIntOption(option_map_, ARG_NEW_COMPACTION_STYLE, new_compaction_style_,
exec_state_);
if (new_compaction_style_ != kCompactionStyleLevel &&
new_compaction_style_ != kCompactionStyleUniversal) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Use --" + ARG_NEW_COMPACTION_STYLE + " to specify new compaction " +
"style. Check ldb help for proper compaction style value.\n");
return;
}
if (new_compaction_style_ == old_compaction_style_) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Old compaction style is the same as new compaction style. "
"Nothing to do.\n");
return;
}
if (old_compaction_style_ == kCompactionStyleUniversal &&
new_compaction_style_ == kCompactionStyleLevel) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Convert from universal compaction to level compaction. "
"Nothing to do.\n");
return;
}
}
void ChangeCompactionStyleCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(ChangeCompactionStyleCommand::Name());
ret.append(" --" + ARG_OLD_COMPACTION_STYLE + "=<Old compaction style: 0 " +
"for level compaction, 1 for universal compaction>");
ret.append(" --" + ARG_NEW_COMPACTION_STYLE + "=<New compaction style: 0 " +
"for level compaction, 1 for universal compaction>");
ret.append("\n");
}
void ChangeCompactionStyleCommand::OverrideBaseCFOptions(
ColumnFamilyOptions* cf_opts) {
LDBCommand::OverrideBaseCFOptions(cf_opts);
if (old_compaction_style_ == kCompactionStyleLevel &&
new_compaction_style_ == kCompactionStyleUniversal) {
// In order to convert from level compaction to universal compaction, we
// need to compact all data into a single file and move it to level 0.
cf_opts->disable_auto_compactions = true;
cf_opts->target_file_size_base = INT_MAX;
cf_opts->target_file_size_multiplier = 1;
cf_opts->max_bytes_for_level_base = INT_MAX;
cf_opts->max_bytes_for_level_multiplier = 1;
}
}
void ChangeCompactionStyleCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
// print db stats before we have made any change
std::string property;
std::string files_per_level;
for (int i = 0; i < db_->NumberLevels(GetCfHandle()); i++) {
db_->GetProperty(GetCfHandle(),
"rocksdb.num-files-at-level" + std::to_string(i),
&property);
// format print string
char buf[100];
snprintf(buf, sizeof(buf), "%s%s", (i ? "," : ""), property.c_str());
files_per_level += buf;
}
fprintf(stdout, "files per level before compaction: %s\n",
files_per_level.c_str());
// manual compact into a single file and move the file to level 0
CompactRangeOptions compact_options;
compact_options.change_level = true;
compact_options.target_level = 0;
Status s =
db_->CompactRange(compact_options, GetCfHandle(), nullptr, nullptr);
if (!s.ok()) {
std::stringstream oss;
oss << "Compaction failed: " << s.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
return;
}
// verify compaction result
files_per_level = "";
int num_files = 0;
for (int i = 0; i < db_->NumberLevels(GetCfHandle()); i++) {
db_->GetProperty(GetCfHandle(),
"rocksdb.num-files-at-level" + std::to_string(i),
&property);
// format print string
char buf[100];
snprintf(buf, sizeof(buf), "%s%s", (i ? "," : ""), property.c_str());
files_per_level += buf;
num_files = atoi(property.c_str());
// level 0 should have only 1 file
if (i == 0 && num_files != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Number of db files at "
"level 0 after compaction is " +
std::to_string(num_files) + ", not 1.\n");
return;
}
// other levels should have no file
if (i > 0 && num_files != 0) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Number of db files at "
"level " +
std::to_string(i) + " after compaction is " +
std::to_string(num_files) + ", not 0.\n");
return;
}
}
fprintf(stdout, "files per level after compaction: %s\n",
files_per_level.c_str());
}
// ----------------------------------------------------------------------------
namespace {
struct StdErrReporter : public log::Reader::Reporter {
void Corruption(size_t /*bytes*/, const Status& s) override {
std::cerr << "Corruption detected in log file " << s.ToString() << "\n";
}
};
class InMemoryHandler : public WriteBatch::Handler {
public:
InMemoryHandler(std::stringstream& row, bool print_values,
bool write_after_commit,
const std::map<uint32_t, const Comparator*>& ucmps)
: Handler(),
row_(row),
print_values_(print_values),
write_after_commit_(write_after_commit),
ucmps_(ucmps) {}
void commonPutMerge(uint32_t cf, const Slice& key, const Slice& value) {
std::string k = PrintKey(cf, key);
if (print_values_) {
std::string v = LDBCommand::StringToHex(value.ToString());
row_ << k << " : ";
row_ << v << " ";
} else {
row_ << k << " ";
}
}
Status PutCF(uint32_t cf, const Slice& key, const Slice& value) override {
row_ << "PUT(" << cf << ") : ";
commonPutMerge(cf, key, value);
return Status::OK();
}
Status PutEntityCF(uint32_t cf, const Slice& key,
const Slice& value) override {
row_ << "PUT_ENTITY(" << cf << ") : " << PrintKey(cf, key);
if (print_values_) {
row_ << " : ";
const Status s =
WideColumnsHelper::DumpSliceAsWideColumns(value, row_, true);
if (!s.ok()) {
return s;
}
}
row_ << ' ';
return Status::OK();
}
Status MergeCF(uint32_t cf, const Slice& key, const Slice& value) override {
row_ << "MERGE(" << cf << ") : ";
commonPutMerge(cf, key, value);
return Status::OK();
}
Status MarkNoop(bool) override {
row_ << "NOOP ";
return Status::OK();
}
Status DeleteCF(uint32_t cf, const Slice& key) override {
row_ << "DELETE(" << cf << ") : ";
row_ << PrintKey(cf, key) << " ";
return Status::OK();
}
Status SingleDeleteCF(uint32_t cf, const Slice& key) override {
row_ << "SINGLE_DELETE(" << cf << ") : ";
row_ << PrintKey(cf, key) << " ";
return Status::OK();
}
Status DeleteRangeCF(uint32_t cf, const Slice& begin_key,
const Slice& end_key) override {
row_ << "DELETE_RANGE(" << cf << ") : ";
row_ << PrintKey(cf, begin_key) << " ";
row_ << PrintKey(cf, end_key) << " ";
return Status::OK();
}
Status MarkBeginPrepare(bool unprepare) override {
row_ << "BEGIN_PREPARE(";
row_ << (unprepare ? "true" : "false") << ") ";
return Status::OK();
}
Status MarkEndPrepare(const Slice& xid) override {
row_ << "END_PREPARE(";
row_ << LDBCommand::StringToHex(xid.ToString()) << ") ";
return Status::OK();
}
Status MarkRollback(const Slice& xid) override {
row_ << "ROLLBACK(";
row_ << LDBCommand::StringToHex(xid.ToString()) << ") ";
return Status::OK();
}
Status MarkCommit(const Slice& xid) override {
row_ << "COMMIT(";
row_ << LDBCommand::StringToHex(xid.ToString()) << ") ";
return Status::OK();
}
Status MarkCommitWithTimestamp(const Slice& xid,
const Slice& commit_ts) override {
row_ << "COMMIT_WITH_TIMESTAMP(";
row_ << LDBCommand::StringToHex(xid.ToString()) << ", ";
row_ << LDBCommand::StringToHex(commit_ts.ToString()) << ") ";
return Status::OK();
}
~InMemoryHandler() override = default;
protected:
Handler::OptionState WriteAfterCommit() const override {
return write_after_commit_ ? Handler::OptionState::kEnabled
: Handler::OptionState::kDisabled;
}
private:
std::string PrintKey(uint32_t cf, const Slice& key) {
auto ucmp_iter = ucmps_.find(cf);
if (ucmp_iter == ucmps_.end()) {
// Fallback to default print slice as hex
return LDBCommand::StringToHex(key.ToString());
}
size_t ts_sz = ucmp_iter->second->timestamp_size();
if (ts_sz == 0) {
return LDBCommand::StringToHex(key.ToString());
} else {
// This could happen if there is corruption or undetected comparator
// change.
if (key.size() < ts_sz) {
return "CORRUPT KEY";
}
Slice user_key_without_ts = key;
user_key_without_ts.remove_suffix(ts_sz);
Slice ts = Slice(key.data() + key.size() - ts_sz, ts_sz);
return LDBCommand::StringToHex(user_key_without_ts.ToString()) +
"|timestamp:" + ucmp_iter->second->TimestampToString(ts);
}
}
std::stringstream& row_;
bool print_values_;
bool write_after_commit_;
const std::map<uint32_t, const Comparator*> ucmps_;
};
void DumpWalFiles(Options options, const std::string& dir_or_file,
bool print_header, bool print_values,
bool only_print_seqno_gaps, bool is_write_committed,
const std::map<uint32_t, const Comparator*>& ucmps,
LDBCommandExecuteResult* exec_state) {
std::vector<std::string> filenames;
ROCKSDB_NAMESPACE::Env* env = options.env;
ROCKSDB_NAMESPACE::Status st = env->GetChildren(dir_or_file, &filenames);
std::optional<SequenceNumber> prev_batch_seqno;
std::optional<uint32_t> prev_batch_count;
if (!st.ok() || filenames.empty()) {
// dir_or_file does not exist or does not contain children
// Check its existence first
Status s = env->FileExists(dir_or_file);
// dir_or_file does not exist
if (!s.ok()) {
if (exec_state) {
*exec_state = LDBCommandExecuteResult::Failed(
dir_or_file + ": No such file or directory");
}
return;
}
// If it exists and doesn't have children, it should be a log file.
if (dir_or_file.length() <= 4 ||
dir_or_file.rfind(".log") != dir_or_file.length() - 4) {
if (exec_state) {
*exec_state = LDBCommandExecuteResult::Failed(
dir_or_file + ": Invalid log file name");
}
return;
}
DumpWalFile(options, dir_or_file, print_header, print_values,
only_print_seqno_gaps, is_write_committed, ucmps, exec_state,
&prev_batch_seqno, &prev_batch_count);
} else {
WALFileIterator wal_file_iter(dir_or_file, filenames);
if (!wal_file_iter.Valid()) {
if (exec_state) {
*exec_state = LDBCommandExecuteResult::Failed(
dir_or_file + ": No valid wal logs found");
}
return;
}
std::string wal_file = wal_file_iter.GetNextWAL();
while (!wal_file.empty()) {
std::cout << "Checking wal file: " << wal_file << std::endl;
DumpWalFile(options, wal_file, print_header, print_values,
only_print_seqno_gaps, is_write_committed, ucmps, exec_state,
&prev_batch_seqno, &prev_batch_count);
if (exec_state->IsFailed() || !wal_file_iter.Valid()) {
return;
}
wal_file = wal_file_iter.GetNextWAL();
}
}
}
void DumpWalFile(Options options, const std::string& wal_file,
bool print_header, bool print_values,
bool only_print_seqno_gaps, bool is_write_committed,
const std::map<uint32_t, const Comparator*>& ucmps,
LDBCommandExecuteResult* exec_state,
std::optional<SequenceNumber>* prev_batch_seqno,
std::optional<uint32_t>* prev_batch_count) {
const auto& fs = options.env->GetFileSystem();
FileOptions soptions(options);
std::unique_ptr<SequentialFileReader> wal_file_reader;
Status status = SequentialFileReader::Create(
fs, wal_file, soptions, &wal_file_reader, nullptr /* dbg */,
nullptr /* rate_limiter */);
if (!status.ok()) {
if (exec_state) {
*exec_state = LDBCommandExecuteResult::Failed("Failed to open WAL file " +
status.ToString());
} else {
std::cerr << "Error: Failed to open WAL file " << status.ToString()
<< std::endl;
}
} else {
StdErrReporter reporter;
uint64_t log_number;
FileType type;
// Comparators are available and will be used for formatting user key if DB
// is opened for this dump wal operation.
UnorderedMap<uint32_t, size_t> running_ts_sz;
for (const auto& [cf_id, ucmp] : ucmps) {
running_ts_sz.emplace(cf_id, ucmp->timestamp_size());
}
// we need the log number, but ParseFilename expects dbname/NNN.log.
std::string sanitized = wal_file;
size_t lastslash = sanitized.rfind('/');
if (lastslash != std::string::npos) {
sanitized = sanitized.substr(lastslash + 1);
}
if (!ParseFileName(sanitized, &log_number, &type)) {
// bogus input, carry on as best we can
log_number = 0;
}
log::Reader reader(options.info_log, std::move(wal_file_reader), &reporter,
true /* checksum */, log_number);
std::unordered_set<uint32_t> encountered_cf_ids;
std::string scratch;
WriteBatch batch;
Slice record;
std::stringstream row;
if (print_header) {
std::cout << "Sequence,Count,ByteSize,Physical Offset,Key(s)";
if (print_values) {
std::cout << " : value ";
}
std::cout << "\n";
}
while (status.ok() && reader.ReadRecord(&record, &scratch)) {
row.str("");
if (record.size() < WriteBatchInternal::kHeader) {
reporter.Corruption(record.size(),
Status::Corruption("log record too small"));
} else {
status = WriteBatchInternal::SetContents(&batch, record);
if (!status.ok()) {
std::stringstream oss;
oss << "Parsing write batch failed: " << status.ToString();
if (exec_state) {
*exec_state = LDBCommandExecuteResult::Failed(oss.str());
} else {
std::cerr << oss.str() << std::endl;
}
break;
}
const UnorderedMap<uint32_t, size_t> recorded_ts_sz =
reader.GetRecordedTimestampSize();
if (!running_ts_sz.empty()) {
status = HandleWriteBatchTimestampSizeDifference(
&batch, running_ts_sz, recorded_ts_sz,
TimestampSizeConsistencyMode::kVerifyConsistency,
/*new_batch=*/nullptr);
if (!status.ok()) {
std::stringstream oss;
oss << "Format for user keys in WAL file is inconsistent with the "
"comparator used to open the DB. Timestamp size recorded in "
"WAL vs specified by "
"comparator: {";
bool first_cf = true;
for (const auto& [cf_id, ts_sz] : running_ts_sz) {
if (first_cf) {
first_cf = false;
} else {
oss << ", ";
}
auto record_ts_iter = recorded_ts_sz.find(cf_id);
size_t ts_sz_in_wal = (record_ts_iter == recorded_ts_sz.end())
? 0
: record_ts_iter->second;
oss << "(cf_id: " << cf_id << ", [recorded: " << ts_sz_in_wal
<< ", comparator: " << ts_sz << "])";
}
oss << "}";
if (exec_state) {
*exec_state = LDBCommandExecuteResult::Failed(oss.str());
} else {
std::cerr << oss.str() << std::endl;
}
break;
}
}
SequenceNumber sequence_number = WriteBatchInternal::Sequence(&batch);
uint32_t batch_count = WriteBatchInternal::Count(&batch);
assert(prev_batch_seqno);
assert(prev_batch_count);
assert(prev_batch_seqno->has_value() == prev_batch_count->has_value());
// TODO(yuzhangyu): handle pessimistic transactions case.
if (only_print_seqno_gaps) {
if (!prev_batch_seqno->has_value() ||
!prev_batch_count->has_value() ||
prev_batch_seqno->value() + prev_batch_count->value() ==
sequence_number) {
*prev_batch_seqno = sequence_number;
*prev_batch_count = batch_count;
continue;
} else if (prev_batch_seqno->has_value() &&
prev_batch_count->has_value()) {
row << "Prev batch sequence number: " << prev_batch_seqno->value()
<< ", prev batch count: " << prev_batch_count->value() << ", ";
*prev_batch_seqno = sequence_number;
*prev_batch_count = batch_count;
}
}
row << sequence_number << ",";
row << batch_count << ",";
*prev_batch_seqno = sequence_number;
*prev_batch_count = batch_count;
row << WriteBatchInternal::ByteSize(&batch) << ",";
row << reader.LastRecordOffset() << ",";
ColumnFamilyCollector cf_collector;
status = batch.Iterate(&cf_collector);
auto cf_ids = cf_collector.column_families();
encountered_cf_ids.insert(cf_ids.begin(), cf_ids.end());
InMemoryHandler handler(row, print_values, is_write_committed, ucmps);
status = batch.Iterate(&handler);
if (!status.ok()) {
if (exec_state) {
std::stringstream oss;
oss << "Print write batch error: " << status.ToString();
*exec_state = LDBCommandExecuteResult::Failed(oss.str());
}
row << "error: " << status.ToString();
break;
}
row << "\n";
}
std::cout << row.str();
}
std::stringstream cf_ids_oss;
bool empty_cfs = true;
for (uint32_t cf_id : encountered_cf_ids) {
if (ucmps.find(cf_id) == ucmps.end()) {
if (empty_cfs) {
cf_ids_oss << "[";
empty_cfs = false;
} else {
cf_ids_oss << ",";
}
cf_ids_oss << cf_id;
}
}
if (!empty_cfs) {
cf_ids_oss << "]";
std::cout
<< "(Column family id: " << cf_ids_oss.str()
<< " contained in WAL are not opened in DB. Applied default "
"hex formatting for user key. Specify --db=<db_path> to "
"open DB for better user key formatting if it contains timestamp.)"
<< std::endl;
}
}
}
} // namespace
const std::string WALDumperCommand::ARG_WAL_FILE = "walfile";
const std::string WALDumperCommand::ARG_WRITE_COMMITTED = "write_committed";
const std::string WALDumperCommand::ARG_PRINT_VALUE = "print_value";
const std::string WALDumperCommand::ARG_PRINT_HEADER = "header";
const std::string WALDumperCommand::ARG_ONLY_PRINT_SEQNO_GAPS =
"only_print_seqno_gaps";
WALDumperCommand::WALDumperCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions({ARG_WAL_FILE, ARG_DB, ARG_WRITE_COMMITTED,
ARG_PRINT_HEADER, ARG_PRINT_VALUE,
ARG_ONLY_PRINT_SEQNO_GAPS})),
print_header_(false),
print_values_(false),
only_print_seqno_gaps_(false),
is_write_committed_(false) {
wal_file_.clear();
auto itr = options.find(ARG_WAL_FILE);
if (itr != options.end()) {
wal_file_ = itr->second;
}
print_header_ = IsFlagPresent(flags, ARG_PRINT_HEADER);
print_values_ = IsFlagPresent(flags, ARG_PRINT_VALUE);
only_print_seqno_gaps_ = IsFlagPresent(flags, ARG_ONLY_PRINT_SEQNO_GAPS);
is_write_committed_ = ParseBooleanOption(options, ARG_WRITE_COMMITTED, true);
if (wal_file_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed("Argument " + ARG_WAL_FILE +
" must be specified.");
}
if (!db_path_.empty()) {
no_db_open_ = false;
}
}
void WALDumperCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(WALDumperCommand::Name());
ret.append(" --" + ARG_WAL_FILE +
"=<write_ahead_log_file_path_or_directory>");
ret.append(" [--" + ARG_DB + "=<db_path>]");
ret.append(" [--" + ARG_PRINT_HEADER + "] ");
ret.append(" [--" + ARG_PRINT_VALUE + "] ");
ret.append(" [--" + ARG_ONLY_PRINT_SEQNO_GAPS +
"] (only correct if not using pessimistic transactions)");
ret.append(" [--" + ARG_WRITE_COMMITTED + "=true|false] ");
ret.append("\n");
}
void WALDumperCommand::DoCommand() {
PrepareOptions();
DumpWalFiles(options_, wal_file_, print_header_, print_values_,
only_print_seqno_gaps_, is_write_committed_, ucmps_,
&exec_state_);
}
// ----------------------------------------------------------------------------
GetCommand::GetCommand(const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX,
ARG_VALUE_HEX, ARG_READ_TIMESTAMP})) {
if (params.size() != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"<key> must be specified for the get command");
} else {
key_ = params.at(0);
}
if (is_key_hex_) {
key_ = HexToString(key_);
}
}
void GetCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(GetCommand::Name());
ret.append(" <key>");
ret.append(" [--" + ARG_READ_TIMESTAMP + "=<uint64_ts>] ");
ret.append(" [--" + ARG_TTL + "]");
ret.append("\n");
}
void GetCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
ReadOptions ropts;
Slice read_timestamp;
ColumnFamilyHandle* cfh = GetCfHandle();
Status st = MaybePopulateReadTimestamp(cfh, ropts, &read_timestamp);
if (!st.ok()) {
std::stringstream oss;
oss << "Get failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
return;
}
std::string value;
st = db_->Get(ropts, cfh, key_, &value);
if (st.ok()) {
fprintf(stdout, "%s\n",
(is_value_hex_ ? StringToHex(value) : value).c_str());
} else if (st.IsNotFound()) {
fprintf(stdout, "Key not found\n");
} else {
std::stringstream oss;
oss << "Get failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
}
}
// ----------------------------------------------------------------------------
MultiGetCommand::MultiGetCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
ARG_READ_TIMESTAMP})) {
if (params.size() < 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"At least one <key> must be specified for multi_get.");
} else {
for (size_t i = 0; i < params.size(); ++i) {
std::string key = params.at(i);
keys_.emplace_back(is_key_hex_ ? HexToString(key) : key);
}
}
}
void MultiGetCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(MultiGetCommand::Name());
ret.append(" <key_1> <key_2> <key_3> ...");
ret.append(" [--" + ARG_READ_TIMESTAMP + "=<uint64_ts>] ");
ret.append("\n");
}
void MultiGetCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
ReadOptions ropts;
Slice read_timestamp;
ColumnFamilyHandle* cfh = GetCfHandle();
Status st = MaybePopulateReadTimestamp(cfh, ropts, &read_timestamp);
if (!st.ok()) {
std::stringstream oss;
oss << "MultiGet failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
return;
}
size_t num_keys = keys_.size();
std::vector<Slice> key_slices;
std::vector<PinnableSlice> values(num_keys);
std::vector<Status> statuses(num_keys);
for (const std::string& key : keys_) {
key_slices.emplace_back(key);
}
db_->MultiGet(ropts, cfh, num_keys, key_slices.data(), values.data(),
statuses.data());
bool failed = false;
for (size_t i = 0; i < num_keys; ++i) {
if (statuses[i].ok()) {
fprintf(stdout, is_value_hex_ ? "%s%s0x%s\n" : "%s%s%s\n",
(is_key_hex_ ? StringToHex(keys_[i]) : keys_[i]).c_str(), DELIM,
values[i].ToString(is_value_hex_).c_str());
} else if (statuses[i].IsNotFound()) {
fprintf(stdout, "Key not found: %s\n",
(is_key_hex_ ? StringToHex(keys_[i]) : keys_[i]).c_str());
} else {
fprintf(stderr, "Status for key %s: %s\n",
(is_key_hex_ ? StringToHex(keys_[i]) : keys_[i]).c_str(),
statuses[i].ToString().c_str());
failed = true;
}
}
if (failed) {
exec_state_ =
LDBCommandExecuteResult::Failed("one or more keys had non-okay status");
}
}
// ----------------------------------------------------------------------------
GetEntityCommand::GetEntityCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX,
ARG_VALUE_HEX, ARG_READ_TIMESTAMP})) {
if (params.size() != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"<key> must be specified for the get_entity command");
} else {
key_ = params.at(0);
}
if (is_key_hex_) {
key_ = HexToString(key_);
}
}
void GetEntityCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(GetEntityCommand::Name());
ret.append(" <key>");
ret.append(" [--" + ARG_READ_TIMESTAMP + "=<uint64_ts>] ");
ret.append(" [--" + ARG_TTL + "]");
ret.append("\n");
}
void GetEntityCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
ReadOptions ropt;
Slice read_timestamp;
ColumnFamilyHandle* cfh = GetCfHandle();
Status st = MaybePopulateReadTimestamp(cfh, ropt, &read_timestamp);
if (!st.ok()) {
std::stringstream oss;
oss << "GetEntity failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
return;
}
PinnableWideColumns pinnable_wide_columns;
st = db_->GetEntity(ropt, cfh, key_, &pinnable_wide_columns);
if (st.ok()) {
std::ostringstream oss;
WideColumnsHelper::DumpWideColumns(pinnable_wide_columns.columns(), oss,
is_value_hex_);
fprintf(stdout, "%s\n", oss.str().c_str());
} else {
std::stringstream oss;
oss << "GetEntity failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
}
}
// ----------------------------------------------------------------------------
MultiGetEntityCommand::MultiGetEntityCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true /* is_read_only */,
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
ARG_READ_TIMESTAMP})) {
if (params.size() < 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"At least one <key> must be specified for the multi_get_entity "
"command");
} else {
for (size_t i = 0; i < params.size(); i++) {
std::string key = params.at(i);
keys_.emplace_back(is_key_hex_ ? HexToString(key) : key);
}
}
}
void MultiGetEntityCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(MultiGetEntityCommand::Name());
ret.append(" <key_1> <key_2> <key_3> ...");
ret.append(" [--" + ARG_READ_TIMESTAMP + "=<uint64_ts>] ");
ret.append("\n");
}
void MultiGetEntityCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
ReadOptions ropt;
Slice read_timestamp;
ColumnFamilyHandle* cfh = GetCfHandle();
Status st = MaybePopulateReadTimestamp(cfh, ropt, &read_timestamp);
if (!st.ok()) {
std::stringstream oss;
oss << "MultiGetEntity failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
return;
}
size_t num_keys = keys_.size();
std::vector<Slice> key_slices;
std::vector<PinnableWideColumns> results(num_keys);
std::vector<Status> statuses(num_keys);
for (const std::string& key : keys_) {
key_slices.emplace_back(key);
}
db_->MultiGetEntity(ropt, cfh, num_keys, key_slices.data(), results.data(),
statuses.data());
bool failed = false;
for (size_t i = 0; i < num_keys; ++i) {
std::string key = is_key_hex_ ? StringToHex(keys_[i]) : keys_[i];
if (statuses[i].ok()) {
std::ostringstream oss;
oss << key << DELIM;
WideColumnsHelper::DumpWideColumns(results[i].columns(), oss,
is_value_hex_);
fprintf(stdout, "%s\n", oss.str().c_str());
} else if (statuses[i].IsNotFound()) {
fprintf(stdout, "Key not found: %s\n", key.c_str());
} else {
fprintf(stderr, "Status for key %s: %s\n", key.c_str(),
statuses[i].ToString().c_str());
failed = true;
}
}
if (failed) {
exec_state_ =
LDBCommandExecuteResult::Failed("one or more keys had non-okay status");
}
}
// ----------------------------------------------------------------------------
ApproxSizeCommand::ApproxSizeCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions(
{ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX, ARG_FROM, ARG_TO})) {
if (options.find(ARG_FROM) != options.end()) {
start_key_ = options.find(ARG_FROM)->second;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_FROM + " must be specified for approxsize command");
return;
}
if (options.find(ARG_TO) != options.end()) {
end_key_ = options.find(ARG_TO)->second;
} else {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_TO + " must be specified for approxsize command");
return;
}
if (is_key_hex_) {
start_key_ = HexToString(start_key_);
end_key_ = HexToString(end_key_);
}
}
void ApproxSizeCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(ApproxSizeCommand::Name());
ret.append(HelpRangeCmdArgs());
ret.append("\n");
}
void ApproxSizeCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Range ranges[1];
ranges[0] = Range(start_key_, end_key_);
uint64_t sizes[1];
Status s = db_->GetApproximateSizes(GetCfHandle(), ranges, 1, sizes);
if (!s.ok()) {
std::stringstream oss;
oss << "ApproximateSize failed: " << s.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
} else {
fprintf(stdout, "%lu\n", (unsigned long)sizes[0]);
}
}
// ----------------------------------------------------------------------------
BatchPutCommand::BatchPutCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX,
ARG_VALUE_HEX, ARG_CREATE_IF_MISSING})) {
if (params.size() < 2) {
exec_state_ = LDBCommandExecuteResult::Failed(
"At least one <key> <value> pair must be specified batchput.");
} else if (params.size() % 2 != 0) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Equal number of <key>s and <value>s must be specified for batchput.");
} else {
for (size_t i = 0; i < params.size(); i += 2) {
std::string key = params.at(i);
std::string value = params.at(i + 1);
key_values_.emplace_back(is_key_hex_ ? HexToString(key) : key,
is_value_hex_ ? HexToString(value) : value);
}
}
create_if_missing_ = IsFlagPresent(flags_, ARG_CREATE_IF_MISSING);
}
void BatchPutCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(BatchPutCommand::Name());
ret.append(" <key> <value> [<key> <value>] [..]");
ret.append(" [--" + ARG_CREATE_IF_MISSING + "]");
ret.append(" [--" + ARG_TTL + "]");
ret.append("\n");
}
void BatchPutCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
WriteBatch batch;
Status st;
std::stringstream oss;
for (std::vector<std::pair<std::string, std::string>>::const_iterator itr =
key_values_.begin();
itr != key_values_.end(); ++itr) {
st = batch.Put(GetCfHandle(), itr->first, itr->second);
if (!st.ok()) {
oss << "Put to write batch failed: " << itr->first << "=>" << itr->second
<< " error: " << st.ToString();
break;
}
}
if (st.ok()) {
st = db_->Write(WriteOptions(), &batch);
if (!st.ok()) {
oss << "Write failed: " << st.ToString();
}
}
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
}
}
void BatchPutCommand::OverrideBaseOptions() {
LDBCommand::OverrideBaseOptions();
options_.create_if_missing = create_if_missing_;
}
// ----------------------------------------------------------------------------
ScanCommand::ScanCommand(const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(
options, flags, true,
BuildCmdLineOptions({ARG_TTL, ARG_NO_VALUE, ARG_HEX, ARG_KEY_HEX,
ARG_TO, ARG_VALUE_HEX, ARG_FROM, ARG_TIMESTAMP,
ARG_MAX_KEYS, ARG_TTL_START, ARG_TTL_END,
ARG_READ_TIMESTAMP, ARG_GET_WRITE_UNIX_TIME})),
start_key_specified_(false),
end_key_specified_(false),
max_keys_scanned_(-1),
no_value_(false) {
auto itr = options.find(ARG_FROM);
if (itr != options.end()) {
start_key_ = itr->second;
if (is_key_hex_) {
start_key_ = HexToString(start_key_);
}
start_key_specified_ = true;
}
itr = options.find(ARG_TO);
if (itr != options.end()) {
end_key_ = itr->second;
if (is_key_hex_) {
end_key_ = HexToString(end_key_);
}
end_key_specified_ = true;
}
std::vector<std::string>::const_iterator vitr =
std::find(flags.begin(), flags.end(), ARG_NO_VALUE);
if (vitr != flags.end()) {
no_value_ = true;
}
itr = options.find(ARG_MAX_KEYS);
if (itr != options.end()) {
try {
#if defined(CYGWIN)
max_keys_scanned_ = strtol(itr->second.c_str(), 0, 10);
#else
max_keys_scanned_ = std::stoi(itr->second);
#endif
} catch (const std::invalid_argument&) {
exec_state_ = LDBCommandExecuteResult::Failed(ARG_MAX_KEYS +
" has an invalid value");
} catch (const std::out_of_range&) {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_MAX_KEYS + " has a value out-of-range");
}
}
get_write_unix_time_ = IsFlagPresent(flags_, ARG_GET_WRITE_UNIX_TIME);
}
void ScanCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(ScanCommand::Name());
ret.append(HelpRangeCmdArgs());
ret.append(" [--" + ARG_TTL + "]");
ret.append(" [--" + ARG_TIMESTAMP + "]");
ret.append(" [--" + ARG_MAX_KEYS + "=<N>q] ");
ret.append(" [--" + ARG_TTL_START + "=<N>:- is inclusive]");
ret.append(" [--" + ARG_TTL_END + "=<N>:- is exclusive]");
ret.append(" [--" + ARG_NO_VALUE + "]");
ret.append(" [--" + ARG_READ_TIMESTAMP + "=<uint64_ts>] ");
ret.append(" [--" + ARG_GET_WRITE_UNIX_TIME + "]");
ret.append("\n");
}
void ScanCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
int num_keys_scanned = 0;
ReadOptions scan_read_opts;
ColumnFamilyHandle* cfh = GetCfHandle();
const Comparator* ucmp = cfh->GetComparator();
size_t ts_sz = ucmp->timestamp_size();
Slice read_timestamp;
Status st = MaybePopulateReadTimestamp(cfh, scan_read_opts, &read_timestamp);
if (!st.ok()) {
std::stringstream oss;
oss << "Scan failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
return;
}
scan_read_opts.total_order_seek = true;
Iterator* it = db_->NewIterator(scan_read_opts, cfh);
if (start_key_specified_) {
it->Seek(start_key_);
} else {
it->SeekToFirst();
}
int ttl_start;
if (!ParseIntOption(option_map_, ARG_TTL_START, ttl_start, exec_state_)) {
ttl_start = DBWithTTLImpl::kMinTimestamp; // TTL introduction time
}
int ttl_end;
if (!ParseIntOption(option_map_, ARG_TTL_END, ttl_end, exec_state_)) {
ttl_end = DBWithTTLImpl::kMaxTimestamp; // Max time allowed by TTL feature
}
if (ttl_end < ttl_start) {
fprintf(stderr, "Error: End time can't be less than start time\n");
delete it;
return;
}
if (is_db_ttl_ && timestamp_) {
fprintf(stdout, "Scanning key-values from %s to %s\n",
TimeToHumanString(ttl_start).c_str(),
TimeToHumanString(ttl_end).c_str());
}
for (;
it->Valid() && (!end_key_specified_ || it->key().ToString() < end_key_);
it->Next()) {
if (is_db_ttl_) {
TtlIterator* it_ttl = static_cast_with_check<TtlIterator>(it);
int rawtime = it_ttl->ttl_timestamp();
if (rawtime < ttl_start || rawtime >= ttl_end) {
continue;
}
if (timestamp_) {
fprintf(stdout, "%s ", TimeToHumanString(rawtime).c_str());
}
}
if (no_value_) {
std::string key_str = it->key().ToString();
if (is_key_hex_) {
key_str = StringToHex(key_str);
} else if (ldb_options_.key_formatter) {
key_str = ldb_options_.key_formatter->Format(key_str);
}
fprintf(stdout, "%s\n", key_str.c_str());
} else {
std::string str =
is_db_ttl_
? PrintKeyValue(it->key().ToString(),
ts_sz == 0 ? "" : it->timestamp().ToString(),
it->value().ToString(), is_key_hex_,
is_value_hex_, ucmp)
: PrintKeyValueOrWideColumns(
it->key(), ts_sz == 0 ? "" : it->timestamp(), it->value(),
it->columns(), is_key_hex_, is_value_hex_, ucmp);
fprintf(stdout, "%s\n", str.c_str());
}
if (get_write_unix_time_) {
std::string write_unix_time;
uint64_t write_time_int = std::numeric_limits<uint64_t>::max();
Status s =
it->GetProperty("rocksdb.iterator.write-time", &write_unix_time);
if (s.ok()) {
s = DecodeU64Ts(write_unix_time, &write_time_int);
}
if (!s.ok()) {
fprintf(stdout, " Failed to get write unix time: %s\n",
s.ToString().c_str());
} else {
fprintf(stdout, " write unix time: %s\n",
std::to_string(write_time_int).c_str());
}
}
num_keys_scanned++;
if (max_keys_scanned_ >= 0 && num_keys_scanned >= max_keys_scanned_) {
break;
}
}
if (!it->status().ok()) { // Check for any errors found during the scan
exec_state_ = LDBCommandExecuteResult::Failed(it->status().ToString());
}
delete it;
}
// ----------------------------------------------------------------------------
DeleteCommand::DeleteCommand(const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX})) {
if (params.size() != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"KEY must be specified for the delete command");
} else {
key_ = params.at(0);
if (is_key_hex_) {
key_ = HexToString(key_);
}
}
}
void DeleteCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DeleteCommand::Name() + " <key>");
ret.append("\n");
}
void DeleteCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Status st = db_->Delete(WriteOptions(), GetCfHandle(), key_);
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
}
}
SingleDeleteCommand::SingleDeleteCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX})) {
if (params.size() != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"KEY must be specified for the single delete command");
} else {
key_ = params.at(0);
if (is_key_hex_) {
key_ = HexToString(key_);
}
}
}
void SingleDeleteCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(SingleDeleteCommand::Name() + " <key>");
ret.append("\n");
}
void SingleDeleteCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Status st = db_->SingleDelete(WriteOptions(), GetCfHandle(), key_);
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
}
}
DeleteRangeCommand::DeleteRangeCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX})) {
if (params.size() != 2) {
exec_state_ = LDBCommandExecuteResult::Failed(
"begin and end keys must be specified for the delete command");
} else {
begin_key_ = params.at(0);
end_key_ = params.at(1);
if (is_key_hex_) {
begin_key_ = HexToString(begin_key_);
end_key_ = HexToString(end_key_);
}
}
}
void DeleteRangeCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DeleteRangeCommand::Name() + " <begin key> <end key>");
ret.append("\n");
}
void DeleteRangeCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Status st =
db_->DeleteRange(WriteOptions(), GetCfHandle(), begin_key_, end_key_);
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
}
}
PutCommand::PutCommand(const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX,
ARG_VALUE_HEX, ARG_CREATE_IF_MISSING})) {
if (params.size() != 2) {
exec_state_ = LDBCommandExecuteResult::Failed(
"<key> and <value> must be specified for the put command");
} else {
key_ = params.at(0);
value_ = params.at(1);
}
if (is_key_hex_) {
key_ = HexToString(key_);
}
if (is_value_hex_) {
value_ = HexToString(value_);
}
create_if_missing_ = IsFlagPresent(flags_, ARG_CREATE_IF_MISSING);
}
void PutCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(PutCommand::Name());
ret.append(" <key> <value>");
ret.append(" [--" + ARG_CREATE_IF_MISSING + "]");
ret.append(" [--" + ARG_TTL + "]");
ret.append("\n");
}
void PutCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Status st = db_->Put(WriteOptions(), GetCfHandle(), key_, value_);
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
}
}
void PutCommand::OverrideBaseOptions() {
LDBCommand::OverrideBaseOptions();
options_.create_if_missing = create_if_missing_;
}
// ----------------------------------------------------------------------------
PutEntityCommand::PutEntityCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false,
BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX,
ARG_VALUE_HEX, ARG_CREATE_IF_MISSING})) {
if (params.size() < 2) {
exec_state_ = LDBCommandExecuteResult::Failed(
"<key> and at least one column <column_name>:<column_value> must be "
"specified for the put_entity command");
} else {
auto iter = params.begin();
key_ = *iter;
if (is_key_hex_) {
key_ = HexToString(key_);
}
for (++iter; iter != params.end(); ++iter) {
auto split = StringSplit(*iter, ':');
if (split.size() != 2) {
exec_state_ = LDBCommandExecuteResult::Failed(
"wide column format needs to be <column_name>:<column_value> (did "
"you mean put <key> <value>?)");
return;
}
std::string name(split[0]);
std::string value(split[1]);
if (is_value_hex_) {
name = HexToString(name);
value = HexToString(value);
}
column_names_.push_back(name);
column_values_.push_back(value);
}
}
create_if_missing_ = IsFlagPresent(flags_, ARG_CREATE_IF_MISSING);
}
void PutEntityCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(PutEntityCommand::Name());
ret.append(
" <key> <column1_name>:<column1_value> <column2_name>:<column2_value> "
"<...>");
ret.append(" [--" + ARG_CREATE_IF_MISSING + "]");
ret.append(" [--" + ARG_TTL + "]");
ret.append("\n");
}
void PutEntityCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
assert(column_names_.size() == column_values_.size());
WideColumns columns;
for (size_t i = 0; i < column_names_.size(); i++) {
WideColumn column(column_names_[i], column_values_[i]);
columns.emplace_back(column);
}
Status st = db_->PutEntity(WriteOptions(), GetCfHandle(), key_, columns);
if (st.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(st.ToString());
}
}
void PutEntityCommand::OverrideBaseOptions() {
LDBCommand::OverrideBaseOptions();
options_.create_if_missing = create_if_missing_;
}
// ----------------------------------------------------------------------------
const char* DBQuerierCommand::HELP_CMD = "help";
const char* DBQuerierCommand::GET_CMD = "get";
const char* DBQuerierCommand::PUT_CMD = "put";
const char* DBQuerierCommand::DELETE_CMD = "delete";
const char* DBQuerierCommand::COUNT_CMD = "count";
DBQuerierCommand::DBQuerierCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(
options, flags, false,
BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX})) {
}
void DBQuerierCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DBQuerierCommand::Name());
ret.append(" [--" + ARG_TTL + "]");
ret.append("\n");
ret.append(
" Starts a REPL shell. Type help for list of available "
"commands.");
ret.append("\n");
}
void DBQuerierCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
std::string line;
Status s;
ColumnFamilyHandle* cfh = GetCfHandle();
const Comparator* ucmp = cfh->GetComparator();
while ((s.ok() || s.IsNotFound() || s.IsInvalidArgument()) &&
getline(std::cin, line, '\n')) {
std::string key;
std::string timestamp;
std::string value;
// Reset to OK status before parsing and executing next user command.
s = Status::OK();
std::stringstream oss;
// Parse line into std::vector<std::string>
std::vector<std::string> tokens;
ParsedParams parsed_params;
size_t pos = 0;
while (true) {
size_t pos2 = line.find(' ', pos);
std::string token =
line.substr(pos, (pos2 == std::string::npos) ? pos2 : (pos2 - pos));
ParseSingleParam(token, parsed_params, tokens);
if (pos2 == std::string::npos) {
break;
}
pos = pos2 + 1;
}
if (tokens.empty() || !parsed_params.flags.empty()) {
fprintf(stdout, "Bad command\n");
continue;
}
const std::string& cmd = tokens[0];
ReadOptions read_options;
WriteOptions write_options;
Slice read_timestamp;
if (cmd == HELP_CMD) {
fprintf(stdout,
"get <key> [--read_timestamp=<uint64_ts>]\n"
"put <key> [<write_timestamp>] <value>\n"
"delete <key> [<write_timestamp>]\n"
"count [--from=<start_key>] [--to=<end_key>] "
"[--read_timestamp=<uint64_ts>]\n");
} else if (cmd == DELETE_CMD && parsed_params.option_map.empty()) {
key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
if (tokens.size() == 2) {
s = db_->Delete(write_options, cfh, Slice(key));
} else if (tokens.size() == 3) {
Status encode_s = EncodeUserProvidedTimestamp(tokens[2], &timestamp);
if (encode_s.ok()) {
s = db_->Delete(write_options, cfh, Slice(key), Slice(timestamp));
} else {
fprintf(stdout, "delete gets invalid argument: %s\n",
encode_s.ToString().c_str());
continue;
}
} else {
fprintf(stdout, "delete gets invalid arguments\n");
continue;
}
oss << "delete " << (is_key_hex_ ? StringToHex(key) : key);
if (!timestamp.empty()) {
oss << " write_ts: " << ucmp->TimestampToString(timestamp);
}
if (s.ok()) {
oss << " succeeded";
} else {
oss << " failed: " << s.ToString();
}
fprintf(stdout, "%s\n", oss.str().c_str());
} else if (cmd == PUT_CMD && parsed_params.option_map.empty()) {
key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
if (tokens.size() == 3) {
value = (is_value_hex_ ? HexToString(tokens[2]) : tokens[2]);
s = db_->Put(write_options, cfh, Slice(key), Slice(value));
} else if (tokens.size() == 4) {
value = (is_value_hex_ ? HexToString(tokens[3]) : tokens[3]);
Status encode_s = EncodeUserProvidedTimestamp(tokens[2], &timestamp);
if (encode_s.ok()) {
s = db_->Put(write_options, cfh, Slice(key), Slice(timestamp),
Slice(value));
} else {
fprintf(stdout, "put gets invalid argument: %s\n",
encode_s.ToString().c_str());
continue;
}
} else {
fprintf(stdout, "put gets invalid arguments\n");
continue;
}
oss << "put " << (is_key_hex_ ? StringToHex(key) : key);
if (!timestamp.empty()) {
oss << " write_ts: " << ucmp->TimestampToString(timestamp);
}
oss << " => " << (is_value_hex_ ? StringToHex(value) : value);
if (s.ok()) {
oss << " succeeded";
} else {
oss << " failed: " << s.ToString();
}
fprintf(stdout, "%s\n", oss.str().c_str());
} else if (cmd == GET_CMD && tokens.size() == 2) {
key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
bool bad_option = false;
for (auto& option : parsed_params.option_map) {
if (option.first == "read_timestamp") {
Status encode_s =
EncodeUserProvidedTimestamp(option.second, &timestamp);
if (!encode_s.ok()) {
fprintf(stdout, "get gets invalid argument: %s\n",
encode_s.ToString().c_str());
bad_option = true;
break;
}
read_timestamp = timestamp;
read_options.timestamp = &read_timestamp;
} else {
fprintf(stdout, "get gets invalid arguments\n");
bad_option = true;
break;
}
}
if (bad_option) {
continue;
}
s = db_->Get(read_options, cfh, Slice(key), &value);
if (s.ok()) {
fprintf(stdout, "%s\n",
PrintKeyValue(key, timestamp, value, is_key_hex_, is_value_hex_,
ucmp)
.c_str());
} else {
oss << "get " << (is_key_hex_ ? StringToHex(key) : key);
if (!timestamp.empty()) {
oss << " read_timestamp: " << ucmp->TimestampToString(timestamp);
}
oss << " status: " << s.ToString();
fprintf(stdout, "%s\n", oss.str().c_str());
}
} else if (cmd == COUNT_CMD) {
std::string start_key;
std::string end_key;
bool bad_option = false;
for (auto& option : parsed_params.option_map) {
if (option.first == "from") {
start_key =
(is_key_hex_ ? HexToString(option.second) : option.second);
} else if (option.first == "to") {
end_key = (is_key_hex_ ? HexToString(option.second) : option.second);
} else if (option.first == "read_timestamp") {
Status encode_s =
EncodeUserProvidedTimestamp(option.second, &timestamp);
if (!encode_s.ok()) {
bad_option = true;
fprintf(stdout, "count gets invalid argument: %s\n",
encode_s.ToString().c_str());
break;
}
read_timestamp = timestamp;
read_options.timestamp = &read_timestamp;
} else {
fprintf(stdout, "count gets invalid arguments\n");
bad_option = true;
break;
}
}
if (bad_option) {
continue;
}
Slice end_key_slice(end_key);
uint64_t count = 0;
if (!end_key.empty()) {
read_options.iterate_upper_bound = &end_key_slice;
}
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, cfh));
if (start_key.empty()) {
iter->SeekToFirst();
} else {
iter->Seek(start_key);
}
while (iter->status().ok() && iter->Valid()) {
count++;
iter->Next();
}
if (iter->status().ok()) {
fprintf(stdout, "%" PRIu64 "\n", count);
} else {
oss << "scan from "
<< (is_key_hex_ ? StringToHex(start_key) : start_key);
if (!timestamp.empty()) {
oss << " read_timestamp: " << ucmp->TimestampToString(timestamp);
}
oss << " to " << (is_key_hex_ ? StringToHex(end_key) : end_key)
<< " failed: " << iter->status().ToString();
fprintf(stdout, "%s\n", oss.str().c_str());
}
} else {
fprintf(stdout, "Unknown command %s\n", line.c_str());
}
}
if (!(s.ok() || s.IsNotFound() || s.IsInvalidArgument())) {
exec_state_ = LDBCommandExecuteResult::Failed(s.ToString());
}
}
// ----------------------------------------------------------------------------
CheckConsistencyCommand::CheckConsistencyCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true, BuildCmdLineOptions({})) {}
void CheckConsistencyCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(CheckConsistencyCommand::Name());
ret.append("\n");
}
void CheckConsistencyCommand::DoCommand() {
options_.paranoid_checks = true;
options_.num_levels = 64;
OpenDB();
if (exec_state_.IsSucceed() || exec_state_.IsNotStarted()) {
fprintf(stdout, "OK\n");
}
CloseDB();
}
// ----------------------------------------------------------------------------
const std::string CheckPointCommand::ARG_CHECKPOINT_DIR = "checkpoint_dir";
CheckPointCommand::CheckPointCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false /* is_read_only */,
BuildCmdLineOptions({ARG_CHECKPOINT_DIR})) {
auto itr = options.find(ARG_CHECKPOINT_DIR);
if (itr != options.end()) {
checkpoint_dir_ = itr->second;
}
}
void CheckPointCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(CheckPointCommand::Name());
ret.append(" [--" + ARG_CHECKPOINT_DIR + "] ");
ret.append("\n");
}
void CheckPointCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Checkpoint* checkpoint;
Status status = Checkpoint::Create(db_, &checkpoint);
status = checkpoint->CreateCheckpoint(checkpoint_dir_);
if (status.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(status.ToString());
}
}
// ----------------------------------------------------------------------------
const std::string RepairCommand::ARG_VERBOSE = "verbose";
RepairCommand::RepairCommand(const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false, BuildCmdLineOptions({ARG_VERBOSE})) {
verbose_ = IsFlagPresent(flags, ARG_VERBOSE);
}
void RepairCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(RepairCommand::Name());
ret.append(" [--" + ARG_VERBOSE + "]");
ret.append("\n");
}
void RepairCommand::OverrideBaseOptions() {
LDBCommand::OverrideBaseOptions();
auto level = verbose_ ? InfoLogLevel::INFO_LEVEL : InfoLogLevel::WARN_LEVEL;
options_.info_log.reset(new StderrLogger(level));
}
void RepairCommand::DoCommand() {
PrepareOptions();
Status status = RepairDB(db_path_, options_);
if (status.ok()) {
fprintf(stdout, "OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(status.ToString());
}
}
// ----------------------------------------------------------------------------
const std::string BackupEngineCommand::ARG_NUM_THREADS = "num_threads";
const std::string BackupEngineCommand::ARG_BACKUP_ENV_URI = "backup_env_uri";
const std::string BackupEngineCommand::ARG_BACKUP_FS_URI = "backup_fs_uri";
const std::string BackupEngineCommand::ARG_BACKUP_DIR = "backup_dir";
const std::string BackupEngineCommand::ARG_STDERR_LOG_LEVEL =
"stderr_log_level";
BackupEngineCommand::BackupEngineCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false /* is_read_only */,
BuildCmdLineOptions({ARG_BACKUP_ENV_URI, ARG_BACKUP_FS_URI,
ARG_BACKUP_DIR, ARG_NUM_THREADS,
ARG_STDERR_LOG_LEVEL})),
num_threads_(1) {
auto itr = options.find(ARG_NUM_THREADS);
if (itr != options.end()) {
num_threads_ = std::stoi(itr->second);
}
itr = options.find(ARG_BACKUP_ENV_URI);
if (itr != options.end()) {
backup_env_uri_ = itr->second;
}
itr = options.find(ARG_BACKUP_FS_URI);
if (itr != options.end()) {
backup_fs_uri_ = itr->second;
}
if (!backup_env_uri_.empty() && !backup_fs_uri_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"you may not specity both --" + ARG_BACKUP_ENV_URI + " and --" +
ARG_BACKUP_FS_URI);
}
itr = options.find(ARG_BACKUP_DIR);
if (itr == options.end()) {
exec_state_ = LDBCommandExecuteResult::Failed("--" + ARG_BACKUP_DIR +
": missing backup directory");
} else {
backup_dir_ = itr->second;
}
itr = options.find(ARG_STDERR_LOG_LEVEL);
if (itr != options.end()) {
int stderr_log_level = std::stoi(itr->second);
if (stderr_log_level < 0 ||
stderr_log_level >= InfoLogLevel::NUM_INFO_LOG_LEVELS) {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_STDERR_LOG_LEVEL + " must be >= 0 and < " +
std::to_string(InfoLogLevel::NUM_INFO_LOG_LEVELS) + ".");
} else {
logger_.reset(
new StderrLogger(static_cast<InfoLogLevel>(stderr_log_level)));
}
}
}
void BackupEngineCommand::Help(const std::string& name, std::string& ret) {
ret.append(" ");
ret.append(name);
ret.append(" [--" + ARG_BACKUP_ENV_URI + " | --" + ARG_BACKUP_FS_URI + "] ");
ret.append(" [--" + ARG_BACKUP_DIR + "] ");
ret.append(" [--" + ARG_NUM_THREADS + "] ");
ret.append(" [--" + ARG_STDERR_LOG_LEVEL + "=<int (InfoLogLevel)>] ");
ret.append("\n");
}
// ----------------------------------------------------------------------------
BackupCommand::BackupCommand(const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: BackupEngineCommand(params, options, flags) {}
void BackupCommand::Help(std::string& ret) {
BackupEngineCommand::Help(Name(), ret);
}
void BackupCommand::DoCommand() {
BackupEngine* backup_engine;
Status status;
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
fprintf(stdout, "open db OK\n");
Env* custom_env = backup_env_guard_.get();
if (custom_env == nullptr) {
Status s =
Env::CreateFromUri(config_options_, backup_env_uri_, backup_fs_uri_,
&custom_env, &backup_env_guard_);
if (!s.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(s.ToString());
return;
}
}
assert(custom_env != nullptr);
BackupEngineOptions backup_options =
BackupEngineOptions(backup_dir_, custom_env);
backup_options.info_log = logger_.get();
backup_options.max_background_operations = num_threads_;
status = BackupEngine::Open(options_.env, backup_options, &backup_engine);
if (status.ok()) {
fprintf(stdout, "open backup engine OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(status.ToString());
return;
}
status = backup_engine->CreateNewBackup(db_);
if (status.ok()) {
fprintf(stdout, "create new backup OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(status.ToString());
return;
}
}
// ----------------------------------------------------------------------------
RestoreCommand::RestoreCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: BackupEngineCommand(params, options, flags) {}
void RestoreCommand::Help(std::string& ret) {
BackupEngineCommand::Help(Name(), ret);
}
void RestoreCommand::DoCommand() {
Env* custom_env = backup_env_guard_.get();
if (custom_env == nullptr) {
Status s =
Env::CreateFromUri(config_options_, backup_env_uri_, backup_fs_uri_,
&custom_env, &backup_env_guard_);
if (!s.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(s.ToString());
return;
}
}
assert(custom_env != nullptr);
std::unique_ptr<BackupEngineReadOnly> restore_engine;
Status status;
{
BackupEngineOptions opts(backup_dir_, custom_env);
opts.info_log = logger_.get();
opts.max_background_operations = num_threads_;
BackupEngineReadOnly* raw_restore_engine_ptr;
status =
BackupEngineReadOnly::Open(options_.env, opts, &raw_restore_engine_ptr);
if (status.ok()) {
restore_engine.reset(raw_restore_engine_ptr);
}
}
if (status.ok()) {
fprintf(stdout, "open restore engine OK\n");
status = restore_engine->RestoreDBFromLatestBackup(db_path_, db_path_);
}
if (status.ok()) {
fprintf(stdout, "restore from backup OK\n");
} else {
exec_state_ = LDBCommandExecuteResult::Failed(status.ToString());
}
}
// ----------------------------------------------------------------------------
namespace {
void DumpSstFile(Options options, std::string filename, bool output_hex,
bool show_properties, bool decode_blob_index,
std::string from_key, std::string to_key) {
if (filename.length() <= 4 ||
filename.rfind(".sst") != filename.length() - 4) {
std::cout << "Invalid sst file name." << std::endl;
return;
}
// no verification
ROCKSDB_NAMESPACE::SstFileDumper dumper(
options, filename, Temperature::kUnknown,
2 * 1024 * 1024 /* readahead_size */,
/* verify_checksum */ false, output_hex, decode_blob_index);
Status st = dumper.ReadSequential(true, std::numeric_limits<uint64_t>::max(),
!from_key.empty(), from_key,
!to_key.empty(), to_key);
if (!st.ok()) {
std::cerr << "Error in reading SST file " << filename << st.ToString()
<< std::endl;
return;
}
if (show_properties) {
const ROCKSDB_NAMESPACE::TableProperties* table_properties;
std::shared_ptr<const ROCKSDB_NAMESPACE::TableProperties>
table_properties_from_reader;
st = dumper.ReadTableProperties(&table_properties_from_reader);
if (!st.ok()) {
std::cerr << filename << ": " << st.ToString()
<< ". Try to use initial table properties" << std::endl;
table_properties = dumper.GetInitTableProperties();
} else {
table_properties = table_properties_from_reader.get();
}
if (table_properties != nullptr) {
std::cout << std::endl << "Table Properties:" << std::endl;
std::cout << table_properties->ToString("\n") << std::endl;
}
}
}
void DumpBlobFile(const std::string& filename, bool is_key_hex,
bool is_value_hex, bool dump_uncompressed_blobs) {
using ROCKSDB_NAMESPACE::blob_db::BlobDumpTool;
BlobDumpTool tool;
BlobDumpTool::DisplayType blob_type = is_value_hex
? BlobDumpTool::DisplayType::kHex
: BlobDumpTool::DisplayType::kRaw;
BlobDumpTool::DisplayType show_uncompressed_blob =
dump_uncompressed_blobs ? blob_type : BlobDumpTool::DisplayType::kNone;
BlobDumpTool::DisplayType show_blob =
dump_uncompressed_blobs ? BlobDumpTool::DisplayType::kNone : blob_type;
BlobDumpTool::DisplayType show_key = is_key_hex
? BlobDumpTool::DisplayType::kHex
: BlobDumpTool::DisplayType::kRaw;
Status s = tool.Run(filename, show_key, show_blob, show_uncompressed_blob,
/* show_summary */ true);
if (!s.ok()) {
fprintf(stderr, "Failed: %s\n", s.ToString().c_str());
}
}
Status EncodeUserProvidedTimestamp(const std::string& user_timestamp,
std::string* ts_buf) {
uint64_t int_timestamp;
std::istringstream iss(user_timestamp);
if (!(iss >> int_timestamp)) {
return Status::InvalidArgument(
"user provided timestamp is not a valid uint64 value.");
}
EncodeU64Ts(int_timestamp, ts_buf);
return Status::OK();
}
} // namespace
DBFileDumperCommand::DBFileDumperCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions(
{ARG_DECODE_BLOB_INDEX, ARG_DUMP_UNCOMPRESSED_BLOBS})),
decode_blob_index_(IsFlagPresent(flags, ARG_DECODE_BLOB_INDEX)),
dump_uncompressed_blobs_(
IsFlagPresent(flags, ARG_DUMP_UNCOMPRESSED_BLOBS)) {}
void DBFileDumperCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DBFileDumperCommand::Name());
ret.append(" [--" + ARG_DECODE_BLOB_INDEX + "] ");
ret.append(" [--" + ARG_DUMP_UNCOMPRESSED_BLOBS + "] ");
ret.append("\n");
}
void DBFileDumperCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Status s;
// TODO: Use --hex, --key_hex, --value_hex flags consistently for
// dumping manifest file, sst files and blob files.
std::cout << "Manifest File" << std::endl;
std::cout << "==============================" << std::endl;
std::string manifest_filename;
s = ReadFileToString(db_->GetEnv(), CurrentFileName(db_->GetName()),
&manifest_filename);
if (!s.ok() || manifest_filename.empty() ||
manifest_filename.back() != '\n') {
std::cerr << "Error when reading CURRENT file "
<< CurrentFileName(db_->GetName()) << std::endl;
}
// remove the trailing '\n'
manifest_filename.resize(manifest_filename.size() - 1);
std::string manifest_filepath = db_->GetName() + "/" + manifest_filename;
// Correct concatenation of filepath and filename:
// Check that there is no double slashes (or more!) when concatenation
// happens.
manifest_filepath = NormalizePath(manifest_filepath);
std::cout << manifest_filepath << std::endl;
DumpManifestFile(options_, manifest_filepath, false, false, false,
column_families_);
std::cout << std::endl;
std::vector<ColumnFamilyMetaData> column_families;
db_->GetAllColumnFamilyMetaData(&column_families);
for (const auto& column_family : column_families) {
std::cout << "Column family name: " << column_family.name << std::endl;
std::cout << "==============================" << std::endl;
std::cout << std::endl;
std::cout << "SST Files" << std::endl;
std::cout << "==============================" << std::endl;
for (const LevelMetaData& level : column_family.levels) {
for (const SstFileMetaData& sst_file : level.files) {
std::string filename = sst_file.db_path + "/" + sst_file.name;
// Correct concatenation of filepath and filename:
// Check that there is no double slashes (or more!) when concatenation
// happens.
filename = NormalizePath(filename);
std::cout << filename << " level:" << level.level << std::endl;
std::cout << "------------------------------" << std::endl;
DumpSstFile(options_, filename, false, true, decode_blob_index_);
std::cout << std::endl;
}
}
std::cout << "Blob Files" << std::endl;
std::cout << "==============================" << std::endl;
for (const BlobMetaData& blob_file : column_family.blob_files) {
std::string filename =
blob_file.blob_file_path + "/" + blob_file.blob_file_name;
// Correct concatenation of filepath and filename:
// Check that there is no double slashes (or more!) when concatenation
// happens.
filename = NormalizePath(filename);
std::cout << filename << std::endl;
std::cout << "------------------------------" << std::endl;
DumpBlobFile(filename, /* is_key_hex */ false, /* is_value_hex */ false,
dump_uncompressed_blobs_);
std::cout << std::endl;
}
}
std::cout << std::endl;
std::cout << "Write Ahead Log Files" << std::endl;
std::cout << "==============================" << std::endl;
ROCKSDB_NAMESPACE::VectorWalPtr wal_files;
s = db_->GetSortedWalFiles(wal_files);
if (!s.ok()) {
std::cerr << "Error when getting WAL files" << std::endl;
} else {
std::string wal_dir;
if (options_.wal_dir.empty()) {
wal_dir = db_->GetName();
} else {
wal_dir = NormalizePath(options_.wal_dir + "/");
}
std::optional<SequenceNumber> prev_batch_seqno;
std::optional<uint32_t> prev_batch_count;
for (auto& wal : wal_files) {
// TODO(qyang): option.wal_dir should be passed into ldb command
std::string filename = wal_dir + wal->PathName();
std::cout << filename << std::endl;
// TODO(myabandeh): allow configuring is_write_commited
DumpWalFile(
options_, filename, true /* print_header */, true /* print_values */,
false /* only_print_seqno_gapstrue */, true /* is_write_commited */,
ucmps_, &exec_state_, &prev_batch_seqno, &prev_batch_count);
}
}
}
const std::string DBLiveFilesMetadataDumperCommand::ARG_SORT_BY_FILENAME =
"sort_by_filename";
DBLiveFilesMetadataDumperCommand::DBLiveFilesMetadataDumperCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true,
BuildCmdLineOptions({ARG_SORT_BY_FILENAME})) {
sort_by_filename_ = IsFlagPresent(flags, ARG_SORT_BY_FILENAME);
}
void DBLiveFilesMetadataDumperCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(DBLiveFilesMetadataDumperCommand::Name());
ret.append(" [--" + ARG_SORT_BY_FILENAME + "] ");
ret.append("\n");
}
void DBLiveFilesMetadataDumperCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
Status s;
std::vector<ColumnFamilyMetaData> metadata;
db_->GetAllColumnFamilyMetaData(&metadata);
if (sort_by_filename_) {
std::cout << "Live SST and Blob Files:" << std::endl;
// tuple of <file path, level, column family name>
std::vector<std::tuple<std::string, int, std::string>> all_files;
for (const auto& column_metadata : metadata) {
// Iterate Levels
const auto& levels = column_metadata.levels;
const std::string& cf = column_metadata.name;
for (const auto& level_metadata : levels) {
// Iterate SST files
const auto& sst_files = level_metadata.files;
int level = level_metadata.level;
for (const auto& sst_metadata : sst_files) {
// The SstFileMetaData.name always starts with "/",
// however SstFileMetaData.db_path is the string provided by
// the user as an input. Therefore we check if we can
// concantenate the two strings directly or if we need to
// drop a possible extra "/" at the end of SstFileMetaData.db_path.
std::string filename =
NormalizePath(sst_metadata.db_path + "/" + sst_metadata.name);
all_files.emplace_back(filename, level, cf);
} // End of for-loop over sst files
} // End of for-loop over levels
const auto& blob_files = column_metadata.blob_files;
for (const auto& blob_metadata : blob_files) {
// The BlobMetaData.blob_file_name always starts with "/",
// however BlobMetaData.blob_file_path is the string provided by
// the user as an input. Therefore we check if we can
// concantenate the two strings directly or if we need to
// drop a possible extra "/" at the end of BlobMetaData.blob_file_path.
std::string filename = NormalizePath(
blob_metadata.blob_file_path + "/" + blob_metadata.blob_file_name);
// Level for blob files is encoded as -1
all_files.emplace_back(filename, -1, cf);
} // End of for-loop over blob files
} // End of for-loop over column metadata
// Sort by filename (i.e. first entry in tuple)
std::sort(all_files.begin(), all_files.end());
for (const auto& item : all_files) {
const std::string& filename = std::get<0>(item);
int level = std::get<1>(item);
const std::string& cf = std::get<2>(item);
if (level == -1) { // Blob File
std::cout << filename << ", column family '" << cf << "'" << std::endl;
} else { // SST file
std::cout << filename << " : level " << level << ", column family '"
<< cf << "'" << std::endl;
}
}
} else {
for (const auto& column_metadata : metadata) {
std::cout << "===== Column Family: " << column_metadata.name
<< " =====" << std::endl;
std::cout << "Live SST Files:" << std::endl;
// Iterate levels
const auto& levels = column_metadata.levels;
for (const auto& level_metadata : levels) {
std::cout << "---------- level " << level_metadata.level
<< " ----------" << std::endl;
// Iterate SST files
const auto& sst_files = level_metadata.files;
for (const auto& sst_metadata : sst_files) {
// The SstFileMetaData.name always starts with "/",
// however SstFileMetaData.db_path is the string provided by
// the user as an input. Therefore we check if we can
// concantenate the two strings directly or if we need to
// drop a possible extra "/" at the end of SstFileMetaData.db_path.
std::string filename =
NormalizePath(sst_metadata.db_path + "/" + sst_metadata.name);
std::cout << filename << std::endl;
} // End of for-loop over sst files
} // End of for-loop over levels
std::cout << "Live Blob Files:" << std::endl;
const auto& blob_files = column_metadata.blob_files;
for (const auto& blob_metadata : blob_files) {
// The BlobMetaData.blob_file_name always starts with "/",
// however BlobMetaData.blob_file_path is the string provided by
// the user as an input. Therefore we check if we can
// concantenate the two strings directly or if we need to
// drop a possible extra "/" at the end of BlobMetaData.blob_file_path.
std::string filename = NormalizePath(
blob_metadata.blob_file_path + "/" + blob_metadata.blob_file_name);
std::cout << filename << std::endl;
} // End of for-loop over blob files
} // End of for-loop over column metadata
} // End of else ("not sort_by_filename")
std::cout << "------------------------------" << std::endl;
}
void WriteExternalSstFilesCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(WriteExternalSstFilesCommand::Name());
ret.append(" <output_sst_path>");
ret.append("\n");
}
WriteExternalSstFilesCommand::WriteExternalSstFilesCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(
options, flags, false /* is_read_only */,
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX, ARG_FROM,
ARG_TO, ARG_CREATE_IF_MISSING})) {
create_if_missing_ =
IsFlagPresent(flags, ARG_CREATE_IF_MISSING) ||
ParseBooleanOption(options, ARG_CREATE_IF_MISSING, false);
if (params.size() != 1) {
exec_state_ = LDBCommandExecuteResult::Failed(
"output SST file path must be specified");
} else {
output_sst_path_ = params.at(0);
}
}
void WriteExternalSstFilesCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
ColumnFamilyHandle* cfh = GetCfHandle();
SstFileWriter sst_file_writer(EnvOptions(), db_->GetOptions(), cfh);
Status status = sst_file_writer.Open(output_sst_path_);
if (!status.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed("failed to open SST file: " +
status.ToString());
return;
}
int bad_lines = 0;
std::string line;
std::ifstream ifs_stdin("/dev/stdin");
std::istream* istream_p = ifs_stdin.is_open() ? &ifs_stdin : &std::cin;
while (getline(*istream_p, line, '\n')) {
std::string key;
std::string value;
if (ParseKeyValue(line, &key, &value, is_key_hex_, is_value_hex_)) {
status = sst_file_writer.Put(key, value);
if (!status.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"failed to write record to file: " + status.ToString());
return;
}
} else if (0 == line.find("Keys in range:")) {
// ignore this line
} else if (0 == line.find("Created bg thread 0x")) {
// ignore this line
} else {
bad_lines++;
}
}
status = sst_file_writer.Finish();
if (!status.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Failed to finish writing to file: " + status.ToString());
return;
}
if (bad_lines > 0) {
fprintf(stderr, "Warning: %d bad lines ignored.\n", bad_lines);
}
exec_state_ = LDBCommandExecuteResult::Succeed(
"external SST file written to " + output_sst_path_);
}
void WriteExternalSstFilesCommand::OverrideBaseOptions() {
LDBCommand::OverrideBaseOptions();
options_.create_if_missing = create_if_missing_;
}
const std::string IngestExternalSstFilesCommand::ARG_MOVE_FILES = "move_files";
const std::string IngestExternalSstFilesCommand::ARG_SNAPSHOT_CONSISTENCY =
"snapshot_consistency";
const std::string IngestExternalSstFilesCommand::ARG_ALLOW_GLOBAL_SEQNO =
"allow_global_seqno";
const std::string IngestExternalSstFilesCommand::ARG_ALLOW_BLOCKING_FLUSH =
"allow_blocking_flush";
const std::string IngestExternalSstFilesCommand::ARG_INGEST_BEHIND =
"ingest_behind";
const std::string IngestExternalSstFilesCommand::ARG_WRITE_GLOBAL_SEQNO =
"write_global_seqno";
void IngestExternalSstFilesCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(IngestExternalSstFilesCommand::Name());
ret.append(" <input_sst_path>");
ret.append(" [--" + ARG_MOVE_FILES + "] ");
ret.append(" [--" + ARG_SNAPSHOT_CONSISTENCY + "] ");
ret.append(" [--" + ARG_ALLOW_GLOBAL_SEQNO + "] ");
ret.append(" [--" + ARG_ALLOW_BLOCKING_FLUSH + "] ");
ret.append(" [--" + ARG_INGEST_BEHIND + "] ");
ret.append(" [--" + ARG_WRITE_GLOBAL_SEQNO + "] ");
ret.append("\n");
}
IngestExternalSstFilesCommand::IngestExternalSstFilesCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(
options, flags, false /* is_read_only */,
BuildCmdLineOptions({ARG_MOVE_FILES, ARG_SNAPSHOT_CONSISTENCY,
ARG_ALLOW_GLOBAL_SEQNO, ARG_CREATE_IF_MISSING,
ARG_ALLOW_BLOCKING_FLUSH, ARG_INGEST_BEHIND,
ARG_WRITE_GLOBAL_SEQNO})),
move_files_(false),
snapshot_consistency_(true),
allow_global_seqno_(true),
allow_blocking_flush_(true),
ingest_behind_(false),
write_global_seqno_(true) {
create_if_missing_ =
IsFlagPresent(flags, ARG_CREATE_IF_MISSING) ||
ParseBooleanOption(options, ARG_CREATE_IF_MISSING, false);
move_files_ = IsFlagPresent(flags, ARG_MOVE_FILES) ||
ParseBooleanOption(options, ARG_MOVE_FILES, false);
snapshot_consistency_ =
IsFlagPresent(flags, ARG_SNAPSHOT_CONSISTENCY) ||
ParseBooleanOption(options, ARG_SNAPSHOT_CONSISTENCY, true);
allow_global_seqno_ =
IsFlagPresent(flags, ARG_ALLOW_GLOBAL_SEQNO) ||
ParseBooleanOption(options, ARG_ALLOW_GLOBAL_SEQNO, true);
allow_blocking_flush_ =
IsFlagPresent(flags, ARG_ALLOW_BLOCKING_FLUSH) ||
ParseBooleanOption(options, ARG_ALLOW_BLOCKING_FLUSH, true);
ingest_behind_ = IsFlagPresent(flags, ARG_INGEST_BEHIND) ||
ParseBooleanOption(options, ARG_INGEST_BEHIND, false);
write_global_seqno_ =
IsFlagPresent(flags, ARG_WRITE_GLOBAL_SEQNO) ||
ParseBooleanOption(options, ARG_WRITE_GLOBAL_SEQNO, true);
if (allow_global_seqno_) {
if (!write_global_seqno_) {
fprintf(stderr,
"Warning: not writing global_seqno to the ingested SST can\n"
"prevent older versions of RocksDB from being able to open it\n");
}
} else {
if (write_global_seqno_) {
exec_state_ = LDBCommandExecuteResult::Failed(
"ldb cannot write global_seqno to the ingested SST when global_seqno "
"is not allowed");
}
}
if (params.size() != 1) {
exec_state_ =
LDBCommandExecuteResult::Failed("input SST path must be specified");
} else {
input_sst_path_ = params.at(0);
}
}
void IngestExternalSstFilesCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
if (GetExecuteState().IsFailed()) {
return;
}
ColumnFamilyHandle* cfh = GetCfHandle();
IngestExternalFileOptions ifo;
ifo.move_files = move_files_;
ifo.snapshot_consistency = snapshot_consistency_;
ifo.allow_global_seqno = allow_global_seqno_;
ifo.allow_blocking_flush = allow_blocking_flush_;
ifo.ingest_behind = ingest_behind_;
ifo.write_global_seqno = write_global_seqno_;
Status status = db_->IngestExternalFile(cfh, {input_sst_path_}, ifo);
if (!status.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"failed to ingest external SST: " + status.ToString());
} else {
exec_state_ =
LDBCommandExecuteResult::Succeed("external SST files ingested");
}
}
void IngestExternalSstFilesCommand::OverrideBaseOptions() {
LDBCommand::OverrideBaseOptions();
options_.create_if_missing = create_if_missing_;
}
ListFileRangeDeletesCommand::ListFileRangeDeletesCommand(
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, true, BuildCmdLineOptions({ARG_MAX_KEYS})) {
auto itr = options.find(ARG_MAX_KEYS);
if (itr != options.end()) {
try {
#if defined(CYGWIN)
max_keys_ = strtol(itr->second.c_str(), 0, 10);
#else
max_keys_ = std::stoi(itr->second);
#endif
} catch (const std::invalid_argument&) {
exec_state_ = LDBCommandExecuteResult::Failed(ARG_MAX_KEYS +
" has an invalid value");
} catch (const std::out_of_range&) {
exec_state_ = LDBCommandExecuteResult::Failed(
ARG_MAX_KEYS + " has a value out-of-range");
}
}
}
void ListFileRangeDeletesCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(ListFileRangeDeletesCommand::Name());
ret.append(" [--" + ARG_MAX_KEYS + "=<N>]");
ret.append(" : print tombstones in SST files.\n");
}
void ListFileRangeDeletesCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
DBImpl* db_impl = static_cast_with_check<DBImpl>(db_->GetRootDB());
std::string out_str;
Status st =
db_impl->TablesRangeTombstoneSummary(GetCfHandle(), max_keys_, &out_str);
if (st.ok()) {
TEST_SYNC_POINT_CALLBACK(
"ListFileRangeDeletesCommand::DoCommand:BeforePrint", &out_str);
fprintf(stdout, "%s\n", out_str.c_str());
}
}
void UnsafeRemoveSstFileCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(UnsafeRemoveSstFileCommand::Name());
ret.append(" <SST file number>");
ret.append(" ");
ret.append(" MUST NOT be used on a live DB.");
ret.append("\n");
}
UnsafeRemoveSstFileCommand::UnsafeRemoveSstFileCommand(
const std::vector<std::string>& params,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false /* is_read_only */,
BuildCmdLineOptions({})) {
if (params.size() != 1) {
exec_state_ =
LDBCommandExecuteResult::Failed("SST file number must be specified");
} else {
char* endptr = nullptr;
sst_file_number_ = strtoull(params.at(0).c_str(), &endptr, 10 /* base */);
if (endptr == nullptr || *endptr != '\0') {
exec_state_ = LDBCommandExecuteResult::Failed(
"Failed to parse SST file number " + params.at(0));
}
}
}
void UnsafeRemoveSstFileCommand::DoCommand() {
// TODO: plumb Env::IOActivity, Env::IOPriority
const ReadOptions read_options;
const WriteOptions write_options;
PrepareOptions();
OfflineManifestWriter w(options_, db_path_);
if (column_families_.empty()) {
column_families_.emplace_back(kDefaultColumnFamilyName, options_);
}
Status s = w.Recover(column_families_);
ColumnFamilyData* cfd = nullptr;
int level = -1;
if (s.ok()) {
FileMetaData* metadata = nullptr;
s = w.Versions().GetMetadataForFile(sst_file_number_, &level, &metadata,
&cfd);
}
if (s.ok()) {
VersionEdit edit;
edit.SetColumnFamily(cfd->GetID());
edit.DeleteFile(level, sst_file_number_);
std::unique_ptr<FSDirectory> db_dir;
s = options_.env->GetFileSystem()->NewDirectory(db_path_, IOOptions(),
&db_dir, nullptr);
if (s.ok()) {
s = w.LogAndApply(read_options, write_options, cfd, &edit, db_dir.get());
}
}
if (!s.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"failed to unsafely remove SST file: " + s.ToString());
} else {
exec_state_ = LDBCommandExecuteResult::Succeed("unsafely removed SST file");
}
}
const std::string UpdateManifestCommand::ARG_VERBOSE = "verbose";
const std::string UpdateManifestCommand::ARG_UPDATE_TEMPERATURES =
"update_temperatures";
void UpdateManifestCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(UpdateManifestCommand::Name());
ret.append(" [--update_temperatures]");
ret.append(" ");
ret.append(" MUST NOT be used on a live DB.");
ret.append("\n");
}
UpdateManifestCommand::UpdateManifestCommand(
const std::vector<std::string>& /*params*/,
const std::map<std::string, std::string>& options,
const std::vector<std::string>& flags)
: LDBCommand(options, flags, false /* is_read_only */,
BuildCmdLineOptions({ARG_VERBOSE, ARG_UPDATE_TEMPERATURES})) {
verbose_ = IsFlagPresent(flags, ARG_VERBOSE) ||
ParseBooleanOption(options, ARG_VERBOSE, false);
update_temperatures_ =
IsFlagPresent(flags, ARG_UPDATE_TEMPERATURES) ||
ParseBooleanOption(options, ARG_UPDATE_TEMPERATURES, false);
if (!update_temperatures_) {
exec_state_ = LDBCommandExecuteResult::Failed(
"No action like --update_temperatures specified for update_manifest");
}
}
void UpdateManifestCommand::DoCommand() {
PrepareOptions();
auto level = verbose_ ? InfoLogLevel::INFO_LEVEL : InfoLogLevel::WARN_LEVEL;
options_.info_log.reset(new StderrLogger(level));
experimental::UpdateManifestForFilesStateOptions opts;
opts.update_temperatures = update_temperatures_;
if (column_families_.empty()) {
column_families_.emplace_back(kDefaultColumnFamilyName, options_);
}
Status s = experimental::UpdateManifestForFilesState(options_, db_path_,
column_families_);
if (!s.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"failed to update manifest: " + s.ToString());
} else {
exec_state_ =
LDBCommandExecuteResult::Succeed("Manifest updates successful");
}
}
} // namespace ROCKSDB_NAMESPACE
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