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rocksdb/tools/ldb_tool.cc

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
#ifndef ROCKSDB_LITE
#include "rocksdb/ldb_tool.h"
#include "rocksdb/utilities/ldb_cmd.h"
#include "tools/ldb_cmd_impl.h"
namespace ROCKSDB_NAMESPACE {
LDBOptions::LDBOptions() {}
void LDBCommandRunner::PrintHelp(const LDBOptions& ldb_options,
const char* /*exec_name*/, bool to_stderr) {
std::string ret;
ret.append(ldb_options.print_help_header);
ret.append("\n\n");
ret.append("commands MUST specify --" + LDBCommand::ARG_DB +
"=<full_path_to_db_directory> when necessary\n");
ret.append("\n");
ret.append("commands can optionally specify\n");
ret.append(" --" + LDBCommand::ARG_ENV_URI + "=<uri_of_environment> or --" +
LDBCommand::ARG_FS_URI + "=<uri_of_filesystem> if necessary");
ret.append("\n");
ret.append(" --" + LDBCommand::ARG_SECONDARY_PATH +
"=<secondary_path> to open DB as secondary instance. Operations "
"not supported in secondary instance will fail.\n\n");
ret.append(
"The following optional parameters control if keys/values are "
"input/output as hex or as plain strings:\n");
ret.append(" --" + LDBCommand::ARG_KEY_HEX +
" : Keys are input/output as hex\n");
ret.append(" --" + LDBCommand::ARG_VALUE_HEX +
" : Values are input/output as hex\n");
ret.append(" --" + LDBCommand::ARG_HEX +
" : Both keys and values are input/output as hex\n");
ret.append("\n");
ret.append(
"The following optional parameters control the database "
"internals:\n");
ret.append(
" --" + LDBCommand::ARG_CF_NAME +
"=<string> : name of the column family to operate on. default: default "
"column family\n");
ret.append(" --" + LDBCommand::ARG_TTL +
" with 'put','get','scan','dump','query','batchput'"
" : DB supports ttl and value is internally timestamp-suffixed\n");
ret.append(" --" + LDBCommand::ARG_TRY_LOAD_OPTIONS +
" : Try to load option file from DB. Default to true if " +
LDBCommand::ARG_DB +
" is specified and not creating a new DB and not open as TTL DB. "
"Can be set to false explicitly.\n");
ret.append(" --" + LDBCommand::ARG_DISABLE_CONSISTENCY_CHECKS +
" : Set options.force_consistency_checks = false.\n");
ret.append(" --" + LDBCommand::ARG_IGNORE_UNKNOWN_OPTIONS +
" : Ignore unknown options when loading option file.\n");
ret.append(" --" + LDBCommand::ARG_BLOOM_BITS + "=<int,e.g.:14>\n");
ret.append(" --" + LDBCommand::ARG_FIX_PREFIX_LEN + "=<int,e.g.:14>\n");
ret.append(" --" + LDBCommand::ARG_COMPRESSION_TYPE +
"=<no|snappy|zlib|bzip2|lz4|lz4hc|xpress|zstd>\n");
ret.append(" --" + LDBCommand::ARG_COMPRESSION_MAX_DICT_BYTES +
"=<int,e.g.:16384>\n");
ret.append(" --" + LDBCommand::ARG_BLOCK_SIZE + "=<block_size_in_bytes>\n");
ret.append(" --" + LDBCommand::ARG_AUTO_COMPACTION + "=<true|false>\n");
ret.append(" --" + LDBCommand::ARG_DB_WRITE_BUFFER_SIZE +
"=<int,e.g.:16777216>\n");
ret.append(" --" + LDBCommand::ARG_WRITE_BUFFER_SIZE +
"=<int,e.g.:4194304>\n");
ret.append(" --" + LDBCommand::ARG_FILE_SIZE + "=<int,e.g.:2097152>\n");
ret.append(" --" + LDBCommand::ARG_ENABLE_BLOB_FILES +
" : Enable key-value separation using BlobDB\n");
ret.append(" --" + LDBCommand::ARG_MIN_BLOB_SIZE + "=<int,e.g.:2097152>\n");
ret.append(" --" + LDBCommand::ARG_BLOB_FILE_SIZE + "=<int,e.g.:2097152>\n");
ret.append(" --" + LDBCommand::ARG_BLOB_COMPRESSION_TYPE +
"=<no|snappy|zlib|bzip2|lz4|lz4hc|xpress|zstd>\n");
ret.append(" --" + LDBCommand::ARG_ENABLE_BLOB_GARBAGE_COLLECTION +
" : Enable blob garbage collection\n");
ret.append(" --" + LDBCommand::ARG_BLOB_GARBAGE_COLLECTION_AGE_CUTOFF +
"=<double,e.g.:0.25>\n");
ret.append(" --" + LDBCommand::ARG_BLOB_GARBAGE_COLLECTION_FORCE_THRESHOLD +
"=<double,e.g.:0.25>\n");
ret.append(" --" + LDBCommand::ARG_BLOB_COMPACTION_READAHEAD_SIZE +
"=<int,e.g.:2097152>\n");
ret.append("\n\n");
ret.append("Data Access Commands:\n");
PutCommand::Help(ret);
GetCommand::Help(ret);
BatchPutCommand::Help(ret);
ScanCommand::Help(ret);
DeleteCommand::Help(ret);
DeleteRangeCommand::Help(ret);
DBQuerierCommand::Help(ret);
ApproxSizeCommand::Help(ret);
CheckConsistencyCommand::Help(ret);
ListFileRangeDeletesCommand::Help(ret);
ret.append("\n\n");
ret.append("Admin Commands:\n");
WALDumperCommand::Help(ret);
CompactorCommand::Help(ret);
ReduceDBLevelsCommand::Help(ret);
ChangeCompactionStyleCommand::Help(ret);
DBDumperCommand::Help(ret);
DBLoaderCommand::Help(ret);
ManifestDumpCommand::Help(ret);
UpdateManifestCommand::Help(ret);
FileChecksumDumpCommand::Help(ret);
GetPropertyCommand::Help(ret);
ListColumnFamiliesCommand::Help(ret);
CreateColumnFamilyCommand::Help(ret);
DropColumnFamilyCommand::Help(ret);
DBFileDumperCommand::Help(ret);
InternalDumpCommand::Help(ret);
DBLiveFilesMetadataDumperCommand::Help(ret);
RepairCommand::Help(ret);
BackupCommand::Help(ret);
RestoreCommand::Help(ret);
CheckPointCommand::Help(ret);
WriteExternalSstFilesCommand::Help(ret);
IngestExternalSstFilesCommand::Help(ret);
UnsafeRemoveSstFileCommand::Help(ret);
fprintf(to_stderr ? stderr : stdout, "%s\n", ret.c_str());
}
int LDBCommandRunner::RunCommand(
int argc, char const* const* argv, Options options,
const LDBOptions& ldb_options,
const std::vector<ColumnFamilyDescriptor>* column_families) {
if (argc <= 2) {
if (argc <= 1) {
PrintHelp(ldb_options, argv[0], /*to_stderr*/ true);
return 1;
} else if (std::string(argv[1]) == "--version") {
printf("ldb from RocksDB %d.%d.%d\n", ROCKSDB_MAJOR, ROCKSDB_MINOR,
ROCKSDB_PATCH);
return 0;
} else if (std::string(argv[1]) == "--help") {
PrintHelp(ldb_options, argv[0], /*to_stderr*/ false);
return 0;
} else {
PrintHelp(ldb_options, argv[0], /*to_stderr*/ true);
return 1;
}
}
LDBCommand* cmdObj = LDBCommand::InitFromCmdLineArgs(
argc, argv, options, ldb_options, column_families);
if (cmdObj == nullptr) {
fprintf(stderr, "Unknown command\n");
PrintHelp(ldb_options, argv[0], /*to_stderr*/ true);
return 1;
}
if (!cmdObj->ValidateCmdLineOptions()) {
return 1;
}
cmdObj->Run();
LDBCommandExecuteResult ret = cmdObj->GetExecuteState();
if (!ret.ToString().empty()) {
fprintf(stderr, "%s\n", ret.ToString().c_str());
}
delete cmdObj;
return ret.IsFailed() ? 1 : 0;
}
void LDBTool::Run(int argc, char** argv, Options options,
const LDBOptions& ldb_options,
const std::vector<ColumnFamilyDescriptor>* column_families) {
int error_code = LDBCommandRunner::RunCommand(argc, argv, options,
ldb_options, column_families);
exit(error_code);
}
} // namespace ROCKSDB_NAMESPACE
#endif // ROCKSDB_LITE
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