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rocksdb/tools/ldb_cmd.cc
Changyu Bi 8515bd50c9 Support read rate-limiting in SequentialFileReader (#9973) 
Summary:
Added rate limiter and read rate-limiting support to SequentialFileReader. I've updated call sites to SequentialFileReader::Read with appropriate IO priority (or left a TODO and specified IO_TOTAL for now).

The PR is separated into four commits: the first one added the rate-limiting support, but with some fixes in the unit test since the number of request bytes from rate limiter in SequentialFileReader are not accurate (there is overcharge at EOF). The second commit fixed this by allowing SequentialFileReader to check file size and determine how many bytes are left in the file to read. The third commit added benchmark related code. The fourth commit moved the logic of using file size to avoid overcharging the rate limiter into backup engine (the main user of SequentialFileReader).

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9973

Test Plan:
- `make check`, backup_engine_test covers usage of SequentialFileReader with rate limiter.
- Run db_bench to check if rate limiting is throttling as expected: Verified that reads and writes are together throttled at 2MB/s, and at 0.2MB chunks that are 100ms apart.
  - Set up: `./db_bench --benchmarks=fillrandom -db=/dev/shm/test_rocksdb`
  - Benchmark:
```
strace -ttfe read,write ./db_bench --benchmarks=backup -db=/dev/shm/test_rocksdb --backup_rate_limit=2097152 --use_existing_db
strace -ttfe read,write ./db_bench --benchmarks=restore -db=/dev/shm/test_rocksdb --restore_rate_limit=2097152 --use_existing_db
```
- db bench on backup and restore to ensure no performance regression.
  - backup (avg over 50 runs): pre-change: 1.90443e+06 micros/op; post-change: 1.8993e+06 micros/op (improve by 0.2%)
  - restore (avg over 50 runs): pre-change: 1.79105e+06 micros/op; post-change: 1.78192e+06 micros/op (improve by 0.5%)

```
# Set up
./db_bench --benchmarks=fillrandom -db=/tmp/test_rocksdb -num=10000000

# benchmark
TEST_TMPDIR=/tmp/test_rocksdb
NUM_RUN=50
for ((j=0;j<$NUM_RUN;j++))
do
   ./db_bench -db=$TEST_TMPDIR -num=10000000 -benchmarks=backup -use_existing_db | egrep 'backup'
  # Restore
  #./db_bench -db=$TEST_TMPDIR -num=10000000 -benchmarks=restore -use_existing_db
done > rate_limit.txt && awk -v NUM_RUN=$NUM_RUN '{sum+=$3;sum_sqrt+=$3^2}END{print sum/NUM_RUN, sqrt(sum_sqrt/NUM_RUN-(sum/NUM_RUN)^2)}' rate_limit.txt >> rate_limit_2.txt
```

Reviewed By: hx235

Differential Revision: D36327418

Pulled By: cbi42

fbshipit-source-id: e75d4307cff815945482df5ba630c1e88d064691
2022-05-24 10:28:57 -07:00

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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).
//
#ifndef ROCKSDB_LITE
#include "rocksdb/utilities/ldb_cmd.h"
#include <cinttypes>
#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/write_batch_internal.h"
#include "file/filename.h"
#include "rocksdb/cache.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/scoped_arena_iterator.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 "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_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_DECODE_BLOB_INDEX = "decode_blob_index";
const std::string LDBCommand::ARG_DUMP_UNCOMPRESSED_BLOBS =
"dump_uncompressed_blobs";
const char* LDBCommand::DELIM = " ==> ";
namespace {
void DumpWalFile(Options options, std::string wal_file, bool print_header,
bool print_values, bool is_write_committed,
LDBCommandExecuteResult* exec_state);
void DumpSstFile(Options options, std::string filename, bool output_hex,
bool show_properties, bool decode_blob_index);
void DumpBlobFile(const std::string& filename, bool is_key_hex,
bool is_value_hex, bool dump_uncompressed_blobs);
};
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.push_back(argv[i]);
}
return InitFromCmdLineArgs(args, options, ldb_options, column_families,
SelectCommand);
}
/**
* 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;
const std::string OPTION_PREFIX = "--";
for (const auto& arg : args) {
if (arg[0] == '-' && arg[1] == '-'){
std::vector<std::string> splits = StringSplit(arg, '=');
// --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] =
arg.substr(splits[0].length() + 1);
}
} else {
cmdTokens.push_back(arg);
}
}
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);
}
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 == PutCommand::Name()) {
return new PutCommand(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;
}
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()) {
exec_state_ = LDBCommandExecuteResult::Failed(
"Open as secondary 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 (is_read_only_ && secondary_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()) {
st = DB::Open(options_, db_path_, &db_);
} else {
st = DB::OpenAsSecondary(options_, db_path_, secondary_path_, &db_);
}
} else {
if (secondary_path_.empty()) {
st = DB::Open(options_, db_path_, column_families_, &handles_opened,
&db_);
} else {
st = DB::OpenAsSecondary(options_, db_path_, secondary_path_,
column_families_, &handles_opened, &db_);
}
}
}
}
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];
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();
}
} 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();
}
}
}
void LDBCommand::CloseDB() {
if (db_ != nullptr) {
for (auto& pair : cf_handles_) {
delete pair.second;
}
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_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_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;
}
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.");
}
}
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.");
}
}
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() {
if (!create_if_missing_ && try_load_options_) {
config_options_.env = options_.env;
Status s = LoadLatestOptions(config_options_, db_path_, &options_,
&column_families_);
if (!s.ok() && !s.IsNotFound()) {
// Option file exists but load option file error.
std::string msg = s.ToString();
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_) {
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()) {
// 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 (auto cf_name : cf_list) {
column_families_.emplace_back(cf_name, options_);
}
}
} else {
// 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& value, bool is_key_hex,
bool is_value_hex) {
std::string result;
result.append(is_key_hex ? StringToHex(key) : key);
result.append(DELIM);
result.append(is_value_hex ? StringToHex(value) : value);
return result;
}
std::string LDBCommand::PrintKeyValue(const std::string& key,
const std::string& value, bool is_hex) {
return PrintKeyValue(key, value, is_hex, is_hex);
}
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) {
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_session_id*/ "");
Status s = versions.DumpManifest(options, file, verbose, hex, json);
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),
path_("") {
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() {
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_);
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_session_id*/ "");
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})),
path_("") {
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() {
// 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() {
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 (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;
}
if (print_stats_) {
std::string stats;
if (db_->GetProperty(GetCfHandle(), "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);
if (has_to_ && ikey.user_key() == to_) {
// 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_);
Slice value(key_version.value);
if (!decode_blob_index_ || value_type != kTypeBlobIndex) {
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
DumpWalFile(options_, path_, /* print_header_ */ true,
/* print_values_ */ true, true /* is_write_commited */,
&exec_state_);
break;
case kTableFile:
DumpSstFile(options_, path_, is_key_hex_, /* show_properties */ true,
decode_blob_index_);
break;
case kDescriptorFile:
DumpManifestFile(options_, path_, /* verbose_ */ false, is_key_hex_,
/* json_ */ false);
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;
scan_read_opts.total_order_seek = true;
Iterator* iter = db_->NewIterator(scan_read_opts, GetCfHandle());
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_ && (iter->key().ToString() >= to_))
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());
}
std::string str =
PrintKeyValue(iter->key().ToString(), iter->value().ToString(),
is_key_hex_, is_value_hex_);
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.push_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_session_id*/ "");
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 = false)
: Handler(),
row_(row),
print_values_(print_values),
write_after_commit_(write_after_commit) {}
void commonPutMerge(const Slice& key, const Slice& value) {
std::string k = LDBCommand::StringToHex(key.ToString());
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(key, value);
return Status::OK();
}
Status MergeCF(uint32_t cf, const Slice& key, const Slice& value) override {
row_ << "MERGE(" << cf << ") : ";
commonPutMerge(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_ << LDBCommand::StringToHex(key.ToString()) << " ";
return Status::OK();
}
Status SingleDeleteCF(uint32_t cf, const Slice& key) override {
row_ << "SINGLE_DELETE(" << cf << ") : ";
row_ << LDBCommand::StringToHex(key.ToString()) << " ";
return Status::OK();
}
Status DeleteRangeCF(uint32_t cf, const Slice& begin_key,
const Slice& end_key) override {
row_ << "DELETE_RANGE(" << cf << ") : ";
row_ << LDBCommand::StringToHex(begin_key.ToString()) << " ";
row_ << LDBCommand::StringToHex(end_key.ToString()) << " ";
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 {}
protected:
Handler::OptionState WriteAfterCommit() const override {
return write_after_commit_ ? Handler::OptionState::kEnabled
: Handler::OptionState::kDisabled;
}
private:
std::stringstream& row_;
bool print_values_;
bool write_after_commit_;
};
void DumpWalFile(Options options, std::string wal_file, bool print_header,
bool print_values, bool is_write_committed,
LDBCommandExecuteResult* exec_state) {
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;
// 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::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;
}
row << WriteBatchInternal::Sequence(&batch) << ",";
row << WriteBatchInternal::Count(&batch) << ",";
row << WriteBatchInternal::ByteSize(&batch) << ",";
row << reader.LastRecordOffset() << ",";
InMemoryHandler handler(row, print_values, is_write_committed);
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();
}
}
}
} // 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";
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_WRITE_COMMITTED,
ARG_PRINT_HEADER, ARG_PRINT_VALUE})),
print_header_(false),
print_values_(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);
is_write_committed_ = ParseBooleanOption(options, ARG_WRITE_COMMITTED, true);
if (wal_file_.empty()) {
exec_state_ = LDBCommandExecuteResult::Failed("Argument " + ARG_WAL_FILE +
" must be specified.");
}
}
void WALDumperCommand::Help(std::string& ret) {
ret.append(" ");
ret.append(WALDumperCommand::Name());
ret.append(" --" + ARG_WAL_FILE + "=<write_ahead_log_file_path>");
ret.append(" [--" + ARG_PRINT_HEADER + "] ");
ret.append(" [--" + ARG_PRINT_VALUE + "] ");
ret.append(" [--" + ARG_WRITE_COMMITTED + "=true|false] ");
ret.append("\n");
}
void WALDumperCommand::DoCommand() {
DumpWalFile(options_, wal_file_, print_header_, print_values_,
is_write_committed_, &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})) {
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_TTL + "]");
ret.append("\n");
}
void GetCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
std::string value;
Status st = db_->Get(ReadOptions(), GetCfHandle(), key_, &value);
if (st.ok()) {
fprintf(stdout, "%s\n",
(is_value_hex_ ? StringToHex(value) : value).c_str());
} else {
std::stringstream oss;
oss << "Get failed: " << st.ToString();
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
}
}
// ----------------------------------------------------------------------------
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_.push_back(std::pair<std::string, std::string>(
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})),
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");
}
}
}
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("\n");
}
void ScanCommand::DoCommand() {
if (!db_) {
assert(GetExecuteState().IsFailed());
return;
}
int num_keys_scanned = 0;
ReadOptions scan_read_opts;
scan_read_opts.total_order_seek = true;
Iterator* it = db_->NewIterator(scan_read_opts, GetCfHandle());
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());
}
}
Slice key_slice = it->key();
std::string formatted_key;
if (is_key_hex_) {
formatted_key = "0x" + key_slice.ToString(true /* hex */);
key_slice = formatted_key;
} else if (ldb_options_.key_formatter) {
formatted_key = ldb_options_.key_formatter->Format(key_slice);
key_slice = formatted_key;
}
if (no_value_) {
fprintf(stdout, "%.*s\n", static_cast<int>(key_slice.size()),
key_slice.data());
} else {
Slice val_slice = it->value();
std::string formatted_value;
if (is_value_hex_) {
formatted_value = "0x" + val_slice.ToString(true /* hex */);
val_slice = formatted_value;
}
fprintf(stdout, "%.*s : %.*s\n", static_cast<int>(key_slice.size()),
key_slice.data(), static_cast<int>(val_slice.size()),
val_slice.data());
}
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_;
}
// ----------------------------------------------------------------------------
const char* DBQuerierCommand::HELP_CMD = "help";
const char* DBQuerierCommand::GET_CMD = "get";
const char* DBQuerierCommand::PUT_CMD = "put";
const char* DBQuerierCommand::DELETE_CMD = "delete";
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;
}
ReadOptions read_options;
WriteOptions write_options;
std::string line;
std::string key;
std::string value;
Status s;
std::stringstream oss;
while (s.ok() && getline(std::cin, line, '\n')) {
// Parse line into std::vector<std::string>
std::vector<std::string> tokens;
size_t pos = 0;
while (true) {
size_t pos2 = line.find(' ', pos);
if (pos2 == std::string::npos) {
break;
}
tokens.push_back(line.substr(pos, pos2-pos));
pos = pos2 + 1;
}
tokens.push_back(line.substr(pos));
const std::string& cmd = tokens[0];
if (cmd == HELP_CMD) {
fprintf(stdout,
"get <key>\n"
"put <key> <value>\n"
"delete <key>\n");
} else if (cmd == DELETE_CMD && tokens.size() == 2) {
key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
s = db_->Delete(write_options, GetCfHandle(), Slice(key));
if (s.ok()) {
fprintf(stdout, "Successfully deleted %s\n", tokens[1].c_str());
} else {
oss << "delete " << key << " failed: " << s.ToString();
}
} else if (cmd == PUT_CMD && tokens.size() == 3) {
key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
value = (is_value_hex_ ? HexToString(tokens[2]) : tokens[2]);
s = db_->Put(write_options, GetCfHandle(), Slice(key), Slice(value));
if (s.ok()) {
fprintf(stdout, "Successfully put %s %s\n", tokens[1].c_str(),
tokens[2].c_str());
} else {
oss << "put " << key << "=>" << value << " failed: " << s.ToString();
}
} else if (cmd == GET_CMD && tokens.size() == 2) {
key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
s = db_->Get(read_options, GetCfHandle(), Slice(key), &value);
if (s.ok()) {
fprintf(stdout, "%s\n", PrintKeyValue(key, value,
is_key_hex_, is_value_hex_).c_str());
} else {
if (s.IsNotFound()) {
fprintf(stdout, "Not found %s\n", tokens[1].c_str());
} else {
oss << "get " << key << " error: " << s.ToString();
}
}
} else {
fprintf(stdout, "Unknown command %s\n", line.c_str());
}
}
if (!s.ok()) {
exec_state_ = LDBCommandExecuteResult::Failed(oss.str());
}
}
// ----------------------------------------------------------------------------
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(),
false, // has_from
from_key, false, // has_to
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());
}
}
} // 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);
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::VectorLogPtr 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 + "/");
}
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, true, true /* is_write_commited */,
&exec_state_);
}
}
}
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() {
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_);
s = w.LogAndApply(cfd, &edit);
}
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
#endif // ROCKSDB_LITE
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