2012-10-31 19:47:18 +01:00
|
|
|
// Copyright (c) 2012 Facebook. All rights reserved.
|
|
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
|
|
// found in the LICENSE file.
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
#include <boost/algorithm/string.hpp>
|
|
|
|
#include <boost/lexical_cast.hpp>
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
|
|
|
|
#include "leveldb/write_batch.h"
|
|
|
|
#include "db/dbformat.h"
|
|
|
|
#include "db/log_reader.h"
|
|
|
|
#include "db/write_batch_internal.h"
|
2012-10-31 19:47:18 +01:00
|
|
|
#include "util/ldb_cmd.h"
|
|
|
|
|
|
|
|
namespace leveldb {
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
const string LDBCommand::ARG_DB = "db";
|
|
|
|
const string LDBCommand::ARG_HEX = "hex";
|
|
|
|
const string LDBCommand::ARG_KEY_HEX = "key_hex";
|
|
|
|
const string LDBCommand::ARG_VALUE_HEX = "value_hex";
|
|
|
|
const string LDBCommand::ARG_FROM = "from";
|
|
|
|
const string LDBCommand::ARG_TO = "to";
|
|
|
|
const string LDBCommand::ARG_MAX_KEYS = "max_keys";
|
|
|
|
const string LDBCommand::ARG_BLOOM_BITS = "bloom_bits";
|
|
|
|
const string LDBCommand::ARG_COMPRESSION_TYPE = "compression_type";
|
|
|
|
const string LDBCommand::ARG_BLOCK_SIZE = "block_size";
|
|
|
|
const string LDBCommand::ARG_AUTO_COMPACTION = "auto_compaction";
|
|
|
|
const string LDBCommand::ARG_WRITE_BUFFER_SIZE = "write_buffer_size";
|
|
|
|
const string LDBCommand::ARG_FILE_SIZE = "file_size";
|
|
|
|
const string LDBCommand::ARG_CREATE_IF_MISSING = "create_if_missing";
|
|
|
|
|
2012-12-27 00:15:54 +01:00
|
|
|
const char* LDBCommand::DELIM = " ==> ";
|
2012-12-06 00:37:03 +01:00
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
LDBCommand* LDBCommand::InitFromCmdLineArgs(int argc, char** argv) {
|
|
|
|
vector<string> args;
|
|
|
|
for (int i = 1; i < argc; i++) {
|
|
|
|
args.push_back(argv[i]);
|
|
|
|
}
|
|
|
|
return InitFromCmdLineArgs(args);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* 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 NULL if the command-line cannot be parsed.
|
|
|
|
*/
|
|
|
|
LDBCommand* LDBCommand::InitFromCmdLineArgs(const vector<string>& args) {
|
|
|
|
// --x=y command line arguments are added as x->y map entries.
|
|
|
|
map<string, string> options;
|
|
|
|
|
|
|
|
// Command-line arguments of the form --hex end up in this array as hex
|
|
|
|
vector<string> flags;
|
|
|
|
|
|
|
|
// Everything other than options and flags. Represents commands
|
|
|
|
// and their parameters. For eg: put key1 value1 go into this vector.
|
|
|
|
vector<string> cmdTokens;
|
|
|
|
|
|
|
|
const string OPTION_PREFIX = "--";
|
|
|
|
|
|
|
|
for (vector<string>::const_iterator itr = args.begin();
|
|
|
|
itr != args.end(); itr++) {
|
|
|
|
string arg = *itr;
|
|
|
|
if (boost::starts_with(arg, OPTION_PREFIX)){
|
|
|
|
vector<string> splits;
|
|
|
|
boost::split(splits, arg, boost::is_any_of("="));
|
|
|
|
if (splits.size() == 2) {
|
|
|
|
string optionKey = splits[0].substr(OPTION_PREFIX.size());
|
|
|
|
options[optionKey] = splits[1];
|
|
|
|
} else {
|
|
|
|
string optionKey = splits[0].substr(OPTION_PREFIX.size());
|
|
|
|
flags.push_back(optionKey);
|
|
|
|
}
|
2012-12-06 00:37:03 +01:00
|
|
|
} else {
|
2013-01-11 20:09:23 +01:00
|
|
|
cmdTokens.push_back(string(arg));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cmdTokens.size() < 1) {
|
|
|
|
fprintf(stderr, "Command not specified!");
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
string cmd = cmdTokens[0];
|
|
|
|
vector<string> cmdParams(cmdTokens.begin()+1, cmdTokens.end());
|
|
|
|
|
|
|
|
if (cmd == GetCommand::Name()) {
|
|
|
|
return new GetCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == PutCommand::Name()) {
|
|
|
|
return new PutCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == BatchPutCommand::Name()) {
|
|
|
|
return new BatchPutCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == ScanCommand::Name()) {
|
|
|
|
return new ScanCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == DeleteCommand::Name()) {
|
|
|
|
return new DeleteCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == ApproxSizeCommand::Name()) {
|
|
|
|
return new ApproxSizeCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == DBQuerierCommand::Name()) {
|
|
|
|
return new DBQuerierCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == CompactorCommand::Name()) {
|
|
|
|
return new CompactorCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == WALDumperCommand::Name()) {
|
|
|
|
return new WALDumperCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == ReduceDBLevelsCommand::Name()) {
|
|
|
|
return new ReduceDBLevelsCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == DBDumperCommand::Name()) {
|
|
|
|
return new DBDumperCommand(cmdParams, options, flags);
|
|
|
|
} else if (cmd == DBLoaderCommand::Name()) {
|
|
|
|
return new DBLoaderCommand(cmdParams, options, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* 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 map<string, string>& options,
|
|
|
|
string option, int& value, LDBCommandExecuteResult& exec_state) {
|
|
|
|
|
|
|
|
map<string, string>::const_iterator itr = options_.find(option);
|
|
|
|
if (itr != options_.end()) {
|
|
|
|
try {
|
|
|
|
value = boost::lexical_cast<int>(itr->second);
|
|
|
|
return true;
|
|
|
|
} catch( const boost::bad_lexical_cast & ) {
|
|
|
|
exec_state = LDBCommandExecuteResult::FAILED(option +
|
|
|
|
" has an invalid value.");
|
2012-12-06 00:37:03 +01:00
|
|
|
}
|
|
|
|
}
|
2013-01-11 20:09:23 +01:00
|
|
|
return false;
|
2012-12-06 00:37:03 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
leveldb::Options LDBCommand::PrepareOptionsForOpenDB() {
|
2013-01-11 20:09:23 +01:00
|
|
|
|
2012-12-06 00:37:03 +01:00
|
|
|
leveldb::Options opt;
|
|
|
|
opt.create_if_missing = false;
|
2013-01-11 20:09:23 +01:00
|
|
|
|
|
|
|
map<string, string>::const_iterator itr;
|
|
|
|
|
|
|
|
int bits;
|
|
|
|
if (ParseIntOption(options_, ARG_BLOOM_BITS, bits, exec_state_)) {
|
|
|
|
if (bits > 0) {
|
2012-12-06 00:37:03 +01:00
|
|
|
opt.filter_policy = leveldb::NewBloomFilterPolicy(bits);
|
2013-01-11 20:09:23 +01:00
|
|
|
} else {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(ARG_BLOOM_BITS +
|
|
|
|
" must be > 0.");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int block_size;
|
|
|
|
if (ParseIntOption(options_, ARG_BLOCK_SIZE, block_size, exec_state_)) {
|
|
|
|
if (block_size > 0) {
|
2012-12-16 03:57:31 +01:00
|
|
|
opt.block_size = block_size;
|
2013-01-11 20:09:23 +01:00
|
|
|
} else {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(ARG_BLOCK_SIZE +
|
|
|
|
" must be > 0.");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
itr = options_.find(ARG_AUTO_COMPACTION);
|
|
|
|
if (itr != options_.end()) {
|
|
|
|
opt.disable_auto_compactions = ! StringToBool(itr->second);
|
|
|
|
}
|
|
|
|
|
|
|
|
itr = options_.find(ARG_COMPRESSION_TYPE);
|
|
|
|
if (itr != options_.end()) {
|
|
|
|
string comp = itr->second;
|
|
|
|
if (comp == "no") {
|
|
|
|
opt.compression = leveldb::kNoCompression;
|
|
|
|
} else if (comp == "snappy") {
|
|
|
|
opt.compression = leveldb::kSnappyCompression;
|
|
|
|
} else if (comp == "zlib") {
|
|
|
|
opt.compression = leveldb::kZlibCompression;
|
|
|
|
} else if (comp == "bzip2") {
|
|
|
|
opt.compression = leveldb::kBZip2Compression;
|
|
|
|
} else {
|
|
|
|
// Unknown compression.
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(
|
|
|
|
"Unknown compression level: " + comp);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int write_buffer_size;
|
|
|
|
if (ParseIntOption(options_, ARG_WRITE_BUFFER_SIZE, write_buffer_size,
|
|
|
|
exec_state_)) {
|
|
|
|
if (write_buffer_size > 0) {
|
2012-12-21 07:56:58 +01:00
|
|
|
opt.write_buffer_size = write_buffer_size;
|
2013-01-11 20:09:23 +01:00
|
|
|
} else {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(ARG_WRITE_BUFFER_SIZE +
|
|
|
|
" must be > 0.");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int file_size;
|
|
|
|
if (ParseIntOption(options_, ARG_FILE_SIZE, file_size, exec_state_)) {
|
|
|
|
if (file_size > 0) {
|
2012-12-21 07:56:58 +01:00
|
|
|
opt.target_file_size_base = file_size;
|
|
|
|
} else {
|
2013-01-11 20:09:23 +01:00
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(ARG_FILE_SIZE +
|
|
|
|
" must be > 0.");
|
2012-12-06 00:37:03 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return opt;
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
bool LDBCommand::ParseKeyValue(const string& line, string* key, 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;
|
|
|
|
}
|
|
|
|
}
|
2012-12-06 00:37:03 +01:00
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
/**
|
|
|
|
* 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 (map<string, string>::const_iterator itr = options_.begin();
|
|
|
|
itr != options_.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;
|
|
|
|
}
|
|
|
|
}
|
2012-10-31 19:47:18 +01:00
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
for (vector<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;
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
if (options_.find(ARG_DB) == options_.end()) {
|
|
|
|
fprintf(stderr, "%s must be specified\n", ARG_DB.c_str());
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
CompactorCommand::CompactorCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, false,
|
|
|
|
BuildCmdLineOptions({ARG_FROM, ARG_TO, ARG_HEX, ARG_KEY_HEX,
|
|
|
|
ARG_VALUE_HEX})),
|
|
|
|
null_from_(true), null_to_(true) {
|
|
|
|
|
|
|
|
map<string, string>::const_iterator 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_) {
|
2012-10-31 19:47:18 +01:00
|
|
|
if (!null_from_) {
|
|
|
|
from_ = HexToString(from_);
|
|
|
|
}
|
|
|
|
if (!null_to_) {
|
|
|
|
to_ = HexToString(to_);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void CompactorCommand::Help(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(CompactorCommand::Name());
|
|
|
|
ret.append(HelpRangeCmdArgs());
|
|
|
|
ret.append("\n");
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void CompactorCommand::DoCommand() {
|
2012-10-31 19:47:18 +01:00
|
|
|
|
|
|
|
leveldb::Slice* begin = NULL;
|
|
|
|
leveldb::Slice* end = NULL;
|
|
|
|
if (!null_from_) {
|
|
|
|
begin = new leveldb::Slice(from_);
|
|
|
|
}
|
|
|
|
if (!null_to_) {
|
|
|
|
end = new leveldb::Slice(to_);
|
|
|
|
}
|
|
|
|
|
|
|
|
db_->CompactRange(begin, end);
|
|
|
|
exec_state_ = LDBCommandExecuteResult::SUCCEED("");
|
|
|
|
|
|
|
|
delete begin;
|
|
|
|
delete end;
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
const string DBLoaderCommand::ARG_DISABLE_WAL = "disable_wal";
|
2012-12-17 02:06:51 +01:00
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
DBLoaderCommand::DBLoaderCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<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})),
|
2012-12-17 02:06:51 +01:00
|
|
|
create_if_missing_(false) {
|
2013-01-11 20:09:23 +01:00
|
|
|
|
|
|
|
create_if_missing_ = IsFlagPresent(flags, ARG_CREATE_IF_MISSING);
|
|
|
|
disable_wal_ = IsFlagPresent(flags, ARG_DISABLE_WAL);
|
2012-12-17 02:06:51 +01:00
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void DBLoaderCommand::Help(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(DBLoaderCommand::Name());
|
|
|
|
ret.append(" [--" + ARG_CREATE_IF_MISSING + "]");
|
|
|
|
ret.append(" [--" + ARG_DISABLE_WAL + "]");
|
|
|
|
ret.append("\n");
|
2012-12-17 02:06:51 +01:00
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
leveldb::Options DBLoaderCommand::PrepareOptionsForOpenDB() {
|
2012-12-17 02:06:51 +01:00
|
|
|
leveldb::Options opt = LDBCommand::PrepareOptionsForOpenDB();
|
|
|
|
opt.create_if_missing = create_if_missing_;
|
|
|
|
return opt;
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void DBLoaderCommand::DoCommand() {
|
2012-12-17 02:06:51 +01:00
|
|
|
if (!db_) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
WriteOptions write_options;
|
|
|
|
if (disable_wal_) {
|
|
|
|
write_options.disableWAL = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
int bad_lines = 0;
|
2013-01-11 20:09:23 +01:00
|
|
|
string line;
|
2012-12-17 02:06:51 +01:00
|
|
|
while (std::getline(std::cin, line, '\n')) {
|
2013-01-11 20:09:23 +01:00
|
|
|
string key;
|
|
|
|
string value;
|
|
|
|
if (ParseKeyValue(line, &key, &value, is_key_hex_, is_value_hex_)) {
|
2012-12-17 02:06:51 +01:00
|
|
|
db_->Put(write_options, 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 ++;
|
|
|
|
}
|
|
|
|
}
|
2013-01-11 20:09:23 +01:00
|
|
|
|
2012-12-17 02:06:51 +01:00
|
|
|
if (bad_lines > 0) {
|
|
|
|
std::cout << "Warning: " << bad_lines << " bad lines ignored." << std::endl;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
const string DBDumperCommand::ARG_COUNT_ONLY = "count_only";
|
|
|
|
const string DBDumperCommand::ARG_STATS = "stats";
|
2012-10-31 19:47:18 +01:00
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
DBDumperCommand::DBDumperCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<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_STATS})),
|
2012-11-06 21:02:18 +01:00
|
|
|
null_from_(true),
|
|
|
|
null_to_(true),
|
|
|
|
max_keys_(-1),
|
|
|
|
count_only_(false),
|
2013-01-11 20:09:23 +01:00
|
|
|
print_stats_(false) {
|
|
|
|
|
|
|
|
map<string, string>::const_iterator 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 {
|
|
|
|
max_keys_ = boost::lexical_cast<int>(itr->second);
|
|
|
|
} catch( const boost::bad_lexical_cast & ) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(ARG_MAX_KEYS +
|
|
|
|
" has an invalid value");
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
print_stats_ = IsFlagPresent(flags, ARG_STATS);
|
|
|
|
count_only_ = IsFlagPresent(flags, ARG_COUNT_ONLY);
|
|
|
|
|
|
|
|
if (is_key_hex_) {
|
2012-10-31 19:47:18 +01:00
|
|
|
if (!null_from_) {
|
|
|
|
from_ = HexToString(from_);
|
|
|
|
}
|
|
|
|
if (!null_to_) {
|
|
|
|
to_ = HexToString(to_);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void DBDumperCommand::Help(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(DBDumperCommand::Name());
|
|
|
|
ret.append(HelpRangeCmdArgs());
|
|
|
|
ret.append(" [--" + ARG_MAX_KEYS + "=<N>]");
|
|
|
|
ret.append(" [--" + ARG_COUNT_ONLY + "]");
|
|
|
|
ret.append(" [--" + ARG_STATS + "]");
|
|
|
|
ret.append("\n");
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void DBDumperCommand::DoCommand() {
|
2012-11-21 22:26:32 +01:00
|
|
|
if (!db_) {
|
|
|
|
return;
|
|
|
|
}
|
2012-10-31 19:47:18 +01:00
|
|
|
// Parse command line args
|
|
|
|
uint64_t count = 0;
|
|
|
|
if (print_stats_) {
|
2013-01-11 20:09:23 +01:00
|
|
|
string stats;
|
2012-10-31 19:47:18 +01:00
|
|
|
if (db_->GetProperty("leveldb.stats", &stats)) {
|
|
|
|
fprintf(stdout, "%s\n", stats.c_str());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Setup key iterator
|
|
|
|
leveldb::Iterator* iter = db_->NewIterator(leveldb::ReadOptions());
|
|
|
|
leveldb::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_;
|
|
|
|
for (; iter->Valid(); iter->Next()) {
|
|
|
|
// 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 (max_keys > 0) {
|
|
|
|
--max_keys;
|
|
|
|
}
|
|
|
|
++count;
|
|
|
|
if (!count_only_) {
|
2013-01-11 20:09:23 +01:00
|
|
|
string str = PrintKeyValue(iter->key().ToString(),
|
2012-12-27 00:15:54 +01:00
|
|
|
iter->value().ToString(),
|
2013-01-11 20:09:23 +01:00
|
|
|
is_key_hex_, is_value_hex_);
|
2012-12-27 00:15:54 +01:00
|
|
|
fprintf(stdout, "%s\n", str.c_str());
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
fprintf(stdout, "Keys in range: %lld\n", (long long) count);
|
|
|
|
// Clean up
|
|
|
|
delete iter;
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
const string ReduceDBLevelsCommand::ARG_NEW_LEVELS = "new_levels";
|
|
|
|
const string ReduceDBLevelsCommand::ARG_PRINT_OLD_LEVELS = "print_old_levels";
|
2012-10-31 19:47:18 +01:00
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
ReduceDBLevelsCommand::ReduceDBLevelsCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, false,
|
|
|
|
BuildCmdLineOptions({ARG_NEW_LEVELS, ARG_PRINT_OLD_LEVELS})),
|
|
|
|
old_levels_(1 << 16),
|
|
|
|
new_levels_(-1),
|
|
|
|
print_old_levels_(false) {
|
2012-12-27 00:15:54 +01:00
|
|
|
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
ParseIntOption(options_, ARG_NEW_LEVELS, new_levels_, exec_state_);
|
|
|
|
print_old_levels_ = IsFlagPresent(flags, ARG_PRINT_OLD_LEVELS);
|
2012-10-31 19:47:18 +01:00
|
|
|
|
|
|
|
if(new_levels_ <= 0) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(
|
2013-01-11 20:09:23 +01:00
|
|
|
" Use --" + ARG_NEW_LEVELS + " to specify a new level number\n");
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
vector<string> ReduceDBLevelsCommand::PrepareArgs(const string& db_path,
|
|
|
|
int new_levels, bool print_old_level) {
|
|
|
|
vector<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));
|
2012-10-31 19:47:18 +01:00
|
|
|
if(print_old_level) {
|
2013-01-11 20:09:23 +01:00
|
|
|
ret.push_back("--" + ARG_PRINT_OLD_LEVELS);
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void ReduceDBLevelsCommand::Help(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");
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
leveldb::Options ReduceDBLevelsCommand::PrepareOptionsForOpenDB() {
|
2012-10-31 19:47:18 +01:00
|
|
|
leveldb::Options opt = LDBCommand::PrepareOptionsForOpenDB();
|
2012-11-09 03:45:19 +01:00
|
|
|
opt.num_levels = old_levels_;
|
|
|
|
// Disable size compaction
|
2012-11-12 07:33:22 +01:00
|
|
|
opt.max_bytes_for_level_base = 1UL << 50;
|
2012-11-09 03:45:19 +01:00
|
|
|
opt.max_bytes_for_level_multiplier = 1;
|
|
|
|
opt.max_mem_compaction_level = 0;
|
2012-10-31 19:47:18 +01:00
|
|
|
return opt;
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
Status ReduceDBLevelsCommand::GetOldNumOfLevels(leveldb::Options& opt,
|
|
|
|
int* levels) {
|
2012-11-09 03:45:19 +01:00
|
|
|
TableCache* tc = new TableCache(db_path_, &opt, 10);
|
|
|
|
const InternalKeyComparator* cmp = new InternalKeyComparator(
|
|
|
|
opt.comparator);
|
|
|
|
VersionSet* versions = new VersionSet(db_path_, &opt,
|
|
|
|
tc, cmp);
|
|
|
|
// 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();
|
|
|
|
if (!st.ok()) {
|
|
|
|
return st;
|
|
|
|
}
|
|
|
|
int max = -1;
|
|
|
|
for (int i = 0; i < versions->NumberLevels(); i++) {
|
|
|
|
if (versions->NumLevelFiles(i)) {
|
|
|
|
max = i;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
*levels = max + 1;
|
|
|
|
delete versions;
|
|
|
|
return st;
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void ReduceDBLevelsCommand::DoCommand() {
|
2012-10-31 19:47:18 +01:00
|
|
|
if (new_levels_ <= 1) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(
|
|
|
|
"Invalid number of levels.\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
leveldb::Status st;
|
|
|
|
leveldb::Options opt = PrepareOptionsForOpenDB();
|
2012-11-09 03:45:19 +01:00
|
|
|
int old_level_num = -1;
|
|
|
|
st = GetOldNumOfLevels(opt, &old_level_num);
|
|
|
|
if (!st.ok()) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-10-31 19:47:18 +01:00
|
|
|
if (print_old_levels_) {
|
2012-11-09 03:45:19 +01:00
|
|
|
fprintf(stdout, "The old number of levels in use is %d\n", old_level_num);
|
|
|
|
}
|
2012-10-31 19:47:18 +01:00
|
|
|
|
2012-11-09 03:45:19 +01:00
|
|
|
if (old_level_num <= new_levels_) {
|
|
|
|
return;
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|
|
|
|
|
2012-11-09 03:45:19 +01:00
|
|
|
old_levels_ = old_level_num;
|
|
|
|
|
|
|
|
OpenDB();
|
2012-11-21 01:14:04 +01:00
|
|
|
if (!db_) {
|
|
|
|
return;
|
|
|
|
}
|
2012-10-31 19:47:18 +01:00
|
|
|
// Compact the whole DB to put all files to the highest level.
|
2012-11-09 03:45:19 +01:00
|
|
|
fprintf(stdout, "Compacting the db...\n");
|
2012-10-31 19:47:18 +01:00
|
|
|
db_->CompactRange(NULL, NULL);
|
|
|
|
CloseDB();
|
|
|
|
|
|
|
|
TableCache* tc = new TableCache(db_path_, &opt, 10);
|
|
|
|
const InternalKeyComparator* cmp = new InternalKeyComparator(
|
|
|
|
opt.comparator);
|
|
|
|
VersionSet* versions = new VersionSet(db_path_, &opt,
|
|
|
|
tc, cmp);
|
|
|
|
// 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.
|
|
|
|
st = versions->Recover();
|
|
|
|
if (!st.ok()) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
port::Mutex mu;
|
|
|
|
mu.Lock();
|
|
|
|
st = versions->ReduceNumberOfLevels(new_levels_, &mu);
|
|
|
|
mu.Unlock();
|
|
|
|
|
|
|
|
if (!st.ok()) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
const string WALDumperCommand::ARG_WAL_FILE = "walfile";
|
|
|
|
const string WALDumperCommand::ARG_PRINT_HEADER = "header";
|
|
|
|
|
|
|
|
WALDumperCommand::WALDumperCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, true,
|
|
|
|
BuildCmdLineOptions({ARG_WAL_FILE, ARG_PRINT_HEADER})),
|
|
|
|
print_header_(false) {
|
|
|
|
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
wal_file_.clear();
|
2013-01-11 20:09:23 +01:00
|
|
|
|
|
|
|
map<string, string>::const_iterator itr = options.find(ARG_WAL_FILE);
|
|
|
|
if (itr != options.end()) {
|
|
|
|
wal_file_ = itr->second;
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
}
|
2013-01-11 20:09:23 +01:00
|
|
|
|
|
|
|
print_header_ = IsFlagPresent(flags, ARG_PRINT_HEADER);
|
|
|
|
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
if (wal_file_.empty()) {
|
2013-01-11 20:09:23 +01:00
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(
|
|
|
|
"Argument " + ARG_WAL_FILE + " must be specified.");
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void WALDumperCommand::Help(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("\n");
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
void WALDumperCommand::DoCommand() {
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
struct StdErrReporter : public log::Reader::Reporter {
|
|
|
|
virtual void Corruption(size_t bytes, const Status& s) {
|
|
|
|
std::cerr<<"Corruption detected in log file "<<s.ToString()<<"\n";
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2013-01-20 11:07:13 +01:00
|
|
|
unique_ptr<SequentialFile> file;
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
Env* env_ = Env::Default();
|
|
|
|
Status status = env_->NewSequentialFile(wal_file_, &file);
|
|
|
|
if (!status.ok()) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED("Failed to open WAL file " +
|
|
|
|
status.ToString());
|
|
|
|
} else {
|
|
|
|
StdErrReporter reporter;
|
2013-01-20 11:07:13 +01:00
|
|
|
log::Reader reader(std::move(file), &reporter, true, 0);
|
2013-01-11 20:09:23 +01:00
|
|
|
string scratch;
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
WriteBatch batch;
|
|
|
|
Slice record;
|
|
|
|
std::stringstream row;
|
|
|
|
if (print_header_) {
|
2012-11-19 19:46:36 +01:00
|
|
|
std::cout<<"Sequence,Count,ByteSize,Physical Offset\n";
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
}
|
|
|
|
while(reader.ReadRecord(&record, &scratch)) {
|
2012-11-19 19:46:36 +01:00
|
|
|
row.str("");
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
if (record.size() < 12) {
|
|
|
|
reporter.Corruption(
|
|
|
|
record.size(), Status::Corruption("log record too small"));
|
|
|
|
} else {
|
|
|
|
WriteBatchInternal::SetContents(&batch, record);
|
|
|
|
row<<WriteBatchInternal::Sequence(&batch)<<",";
|
|
|
|
row<<WriteBatchInternal::Count(&batch)<<",";
|
2012-11-19 19:46:36 +01:00
|
|
|
row<<WriteBatchInternal::ByteSize(&batch)<<",";
|
|
|
|
row<<reader.LastRecordOffset()<<"\n";
|
LDB can read WAL.
Summary:
Add option to read WAL and print a summary for each record.
facebook task => #1885013
E.G. Output :
./ldb dump_wal --walfile=/tmp/leveldbtest-5907/dbbench/026122.log --header
Sequence,Count,ByteSize
49981,1,100033
49981,1,100033
49982,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49981,1,100033
49982,1,100033
49983,1,100033
49984,1,100033
49981,1,100033
49982,1,100033
Test Plan:
Works run
./ldb read_wal --wal-file=/tmp/leveldbtest-5907/dbbench/000078.log --header
Reviewers: dhruba, heyongqiang
Reviewed By: dhruba
CC: emayanke, leveldb, zshao
Differential Revision: https://reviews.facebook.net/D6675
2012-11-13 01:45:45 +01:00
|
|
|
}
|
|
|
|
std::cout<<row.str();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-11 20:09:23 +01:00
|
|
|
|
|
|
|
GetCommand::GetCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, true,
|
|
|
|
BuildCmdLineOptions({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(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(GetCommand::Name());
|
|
|
|
ret.append(" <key>");
|
|
|
|
ret.append("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void GetCommand::DoCommand() {
|
|
|
|
string value;
|
|
|
|
leveldb::Status st = db_->Get(leveldb::ReadOptions(), key_, &value);
|
|
|
|
if (st.ok()) {
|
|
|
|
fprintf(stdout, "%s\n",
|
|
|
|
(is_value_hex_ ? StringToHex(value) : value).c_str());
|
|
|
|
} else {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
ApproxSizeCommand::ApproxSizeCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<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(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(ApproxSizeCommand::Name());
|
|
|
|
ret.append(HelpRangeCmdArgs());
|
|
|
|
ret.append("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void ApproxSizeCommand::DoCommand() {
|
|
|
|
|
|
|
|
leveldb::Range ranges[1];
|
|
|
|
ranges[0] = leveldb::Range(start_key_, end_key_);
|
|
|
|
uint64_t sizes[1];
|
|
|
|
db_->GetApproximateSizes(ranges, 1, sizes);
|
|
|
|
fprintf(stdout, "%ld\n", sizes[0]);
|
|
|
|
/* Wierd that GetApproximateSizes() returns void, although documentation
|
|
|
|
* says that it returns a Status object.
|
|
|
|
if (!st.ok()) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
BatchPutCommand::BatchPutCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, false,
|
|
|
|
BuildCmdLineOptions({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) {
|
|
|
|
string key = params.at(i);
|
|
|
|
string value = params.at(i+1);
|
|
|
|
key_values_.push_back(std::pair<string, string>(
|
|
|
|
is_key_hex_ ? HexToString(key) : key,
|
|
|
|
is_value_hex_ ? HexToString(value) : value));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void BatchPutCommand::Help(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(BatchPutCommand::Name());
|
|
|
|
ret.append(" <key> <value> [<key> <value>] [..]");
|
|
|
|
ret.append("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void BatchPutCommand::DoCommand() {
|
|
|
|
leveldb::WriteBatch batch;
|
|
|
|
|
|
|
|
for (vector<std::pair<string, string>>::const_iterator itr
|
|
|
|
= key_values_.begin(); itr != key_values_.end(); itr++) {
|
|
|
|
batch.Put(itr->first, itr->second);
|
|
|
|
}
|
|
|
|
leveldb::Status st = db_->Write(leveldb::WriteOptions(), &batch);
|
|
|
|
if (st.ok()) {
|
|
|
|
fprintf(stdout, "OK\n");
|
|
|
|
} else {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
leveldb::Options BatchPutCommand::PrepareOptionsForOpenDB() {
|
|
|
|
leveldb::Options opt = LDBCommand::PrepareOptionsForOpenDB();
|
|
|
|
opt.create_if_missing = IsFlagPresent(flags_, ARG_CREATE_IF_MISSING);
|
|
|
|
return opt;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
ScanCommand::ScanCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, true,
|
|
|
|
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
|
|
|
|
ARG_FROM, ARG_TO, ARG_MAX_KEYS})),
|
|
|
|
start_key_specified_(false),
|
|
|
|
end_key_specified_(false),
|
|
|
|
max_keys_scanned_(-1) {
|
|
|
|
|
|
|
|
map<string, string>::const_iterator 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;
|
|
|
|
}
|
|
|
|
|
|
|
|
itr = options.find(ARG_MAX_KEYS);
|
|
|
|
if (itr != options.end()) {
|
|
|
|
try {
|
|
|
|
max_keys_scanned_ = boost::lexical_cast< int >(itr->second);
|
|
|
|
} catch( const boost::bad_lexical_cast & ) {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(ARG_MAX_KEYS +
|
|
|
|
" has an invalid value");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void ScanCommand::Help(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(ScanCommand::Name());
|
|
|
|
ret.append(HelpRangeCmdArgs());
|
|
|
|
ret.append("--" + ARG_MAX_KEYS + "=N] ");
|
|
|
|
ret.append("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void ScanCommand::DoCommand() {
|
|
|
|
|
|
|
|
int num_keys_scanned = 0;
|
|
|
|
Iterator* it = db_->NewIterator(leveldb::ReadOptions());
|
|
|
|
if (start_key_specified_) {
|
|
|
|
it->Seek(start_key_);
|
|
|
|
} else {
|
|
|
|
it->SeekToFirst();
|
|
|
|
}
|
|
|
|
for ( ;
|
|
|
|
it->Valid() && (!end_key_specified_ || it->key().ToString() < end_key_);
|
|
|
|
it->Next()) {
|
|
|
|
string key = it->key().ToString();
|
|
|
|
string value = it->value().ToString();
|
|
|
|
fprintf(stdout, "%s : %s\n",
|
|
|
|
(is_key_hex_ ? StringToHex(key) : key).c_str(),
|
|
|
|
(is_value_hex_ ? StringToHex(value) : value).c_str()
|
|
|
|
);
|
|
|
|
num_keys_scanned++;
|
|
|
|
if (max_keys_scanned_ >= 0 && num_keys_scanned >= max_keys_scanned_) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!it->status().ok()) { // Check for any errors found during the scan
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(it->status().ToString());
|
|
|
|
}
|
|
|
|
delete it;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
DeleteCommand::DeleteCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<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(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(DeleteCommand::Name() + " <key>");
|
|
|
|
ret.append("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void DeleteCommand::DoCommand() {
|
|
|
|
leveldb::Status st = db_->Delete(leveldb::WriteOptions(), key_);
|
|
|
|
if (st.ok()) {
|
|
|
|
fprintf(stdout, "OK\n");
|
|
|
|
} else {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
PutCommand::PutCommand(const vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, false,
|
|
|
|
BuildCmdLineOptions({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_);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void PutCommand::Help(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(PutCommand::Name());
|
|
|
|
ret.append(" <key> <value> ");
|
|
|
|
ret.append("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void PutCommand::DoCommand() {
|
|
|
|
leveldb::Status st = db_->Put(leveldb::WriteOptions(), key_, value_);
|
|
|
|
if (st.ok()) {
|
|
|
|
fprintf(stdout, "OK\n");
|
|
|
|
} else {
|
|
|
|
exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
leveldb::Options PutCommand::PrepareOptionsForOpenDB() {
|
|
|
|
leveldb::Options opt = LDBCommand::PrepareOptionsForOpenDB();
|
|
|
|
opt.create_if_missing = IsFlagPresent(flags_, ARG_CREATE_IF_MISSING);
|
|
|
|
return opt;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
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 vector<string>& params,
|
|
|
|
const map<string, string>& options, const vector<string>& flags) :
|
|
|
|
LDBCommand(options, flags, false,
|
|
|
|
BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX})) {
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
void DBQuerierCommand::Help(string& ret) {
|
|
|
|
ret.append(" ");
|
|
|
|
ret.append(DBQuerierCommand::Name());
|
|
|
|
ret.append("\n");
|
|
|
|
ret.append(" Starts a REPL shell. Type help for list of available "
|
|
|
|
"commands.");
|
|
|
|
ret.append("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void DBQuerierCommand::DoCommand() {
|
|
|
|
if (!db_) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
leveldb::ReadOptions read_options;
|
|
|
|
leveldb::WriteOptions write_options;
|
|
|
|
|
|
|
|
string line;
|
|
|
|
string key;
|
|
|
|
string value;
|
|
|
|
while (getline(std::cin, line, '\n')) {
|
|
|
|
|
|
|
|
// Parse line into vector<string>
|
|
|
|
vector<string> tokens;
|
|
|
|
size_t pos = 0;
|
|
|
|
while (true) {
|
|
|
|
size_t pos2 = line.find(' ', pos);
|
|
|
|
if (pos2 == string::npos) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
tokens.push_back(line.substr(pos, pos2-pos));
|
|
|
|
pos = pos2 + 1;
|
|
|
|
}
|
|
|
|
tokens.push_back(line.substr(pos));
|
|
|
|
|
|
|
|
const 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]);
|
|
|
|
db_->Delete(write_options, Slice(key));
|
|
|
|
fprintf(stdout, "Successfully deleted %s\n", tokens[1].c_str());
|
|
|
|
} 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]);
|
|
|
|
db_->Put(write_options, Slice(key), Slice(value));
|
|
|
|
fprintf(stdout, "Successfully put %s %s\n",
|
|
|
|
tokens[1].c_str(), tokens[2].c_str());
|
|
|
|
} else if (cmd == GET_CMD && tokens.size() == 2) {
|
|
|
|
key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
|
|
|
|
if (db_->Get(read_options, Slice(key), &value).ok()) {
|
|
|
|
fprintf(stdout, "%s\n", PrintKeyValue(key, value,
|
|
|
|
is_key_hex_, is_value_hex_).c_str());
|
|
|
|
} else {
|
|
|
|
fprintf(stdout, "Not found %s\n", tokens[1].c_str());
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
fprintf(stdout, "Unknown command %s\n", line.c_str());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-10-31 19:47:18 +01:00
|
|
|
}
|