fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
258 lines
8.7 KiB
258 lines
8.7 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
|
|
|
|
#include "rocksdb/db_dump_tool.h"
|
|
|
|
#include <cinttypes>
|
|
#include <iostream>
|
|
|
|
#include "rocksdb/db.h"
|
|
#include "rocksdb/env.h"
|
|
#include "util/coding.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
bool DbDumpTool::Run(const DumpOptions& dump_options,
|
|
ROCKSDB_NAMESPACE::Options options) {
|
|
ROCKSDB_NAMESPACE::DB* dbptr;
|
|
ROCKSDB_NAMESPACE::Status status;
|
|
std::unique_ptr<ROCKSDB_NAMESPACE::WritableFile> dumpfile;
|
|
char hostname[1024];
|
|
int64_t timesec = 0;
|
|
std::string abspath;
|
|
char json[4096];
|
|
|
|
static const char* magicstr = "ROCKDUMP";
|
|
static const char versionstr[8] = {0, 0, 0, 0, 0, 0, 0, 1};
|
|
|
|
ROCKSDB_NAMESPACE::Env* env = ROCKSDB_NAMESPACE::Env::Default();
|
|
|
|
// Open the database
|
|
options.create_if_missing = false;
|
|
status = ROCKSDB_NAMESPACE::DB::OpenForReadOnly(options, dump_options.db_path,
|
|
&dbptr);
|
|
if (!status.ok()) {
|
|
std::cerr << "Unable to open database '" << dump_options.db_path
|
|
<< "' for reading: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
const std::unique_ptr<ROCKSDB_NAMESPACE::DB> db(dbptr);
|
|
|
|
status = env->NewWritableFile(dump_options.dump_location, &dumpfile,
|
|
ROCKSDB_NAMESPACE::EnvOptions());
|
|
if (!status.ok()) {
|
|
std::cerr << "Unable to open dump file '" << dump_options.dump_location
|
|
<< "' for writing: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
ROCKSDB_NAMESPACE::Slice magicslice(magicstr, 8);
|
|
status = dumpfile->Append(magicslice);
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
ROCKSDB_NAMESPACE::Slice versionslice(versionstr, 8);
|
|
status = dumpfile->Append(versionslice);
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
if (dump_options.anonymous) {
|
|
snprintf(json, sizeof(json), "{}");
|
|
} else {
|
|
status = env->GetHostName(hostname, sizeof(hostname));
|
|
status = env->GetCurrentTime(×ec);
|
|
status = env->GetAbsolutePath(dump_options.db_path, &abspath);
|
|
snprintf(json, sizeof(json),
|
|
"{ \"database-path\": \"%s\", \"hostname\": \"%s\", "
|
|
"\"creation-time\": %" PRIi64 " }",
|
|
abspath.c_str(), hostname, timesec);
|
|
}
|
|
|
|
ROCKSDB_NAMESPACE::Slice infoslice(json, strlen(json));
|
|
char infosize[4];
|
|
ROCKSDB_NAMESPACE::EncodeFixed32(infosize, (uint32_t)infoslice.size());
|
|
ROCKSDB_NAMESPACE::Slice infosizeslice(infosize, 4);
|
|
status = dumpfile->Append(infosizeslice);
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
status = dumpfile->Append(infoslice);
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
const std::unique_ptr<ROCKSDB_NAMESPACE::Iterator> it(
|
|
db->NewIterator(ROCKSDB_NAMESPACE::ReadOptions()));
|
|
for (it->SeekToFirst(); it->Valid(); it->Next()) {
|
|
char keysize[4];
|
|
ROCKSDB_NAMESPACE::EncodeFixed32(keysize, (uint32_t)it->key().size());
|
|
ROCKSDB_NAMESPACE::Slice keysizeslice(keysize, 4);
|
|
status = dumpfile->Append(keysizeslice);
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
status = dumpfile->Append(it->key());
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
char valsize[4];
|
|
ROCKSDB_NAMESPACE::EncodeFixed32(valsize, (uint32_t)it->value().size());
|
|
ROCKSDB_NAMESPACE::Slice valsizeslice(valsize, 4);
|
|
status = dumpfile->Append(valsizeslice);
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
status = dumpfile->Append(it->value());
|
|
if (!status.ok()) {
|
|
std::cerr << "Append failed: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
}
|
|
if (!it->status().ok()) {
|
|
std::cerr << "Database iteration failed: " << status.ToString()
|
|
<< std::endl;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool DbUndumpTool::Run(const UndumpOptions& undump_options,
|
|
ROCKSDB_NAMESPACE::Options options) {
|
|
ROCKSDB_NAMESPACE::DB* dbptr;
|
|
ROCKSDB_NAMESPACE::Status status;
|
|
ROCKSDB_NAMESPACE::Env* env;
|
|
std::unique_ptr<ROCKSDB_NAMESPACE::SequentialFile> dumpfile;
|
|
ROCKSDB_NAMESPACE::Slice slice;
|
|
char scratch8[8];
|
|
|
|
static const char* magicstr = "ROCKDUMP";
|
|
static const char versionstr[8] = {0, 0, 0, 0, 0, 0, 0, 1};
|
|
|
|
env = ROCKSDB_NAMESPACE::Env::Default();
|
|
|
|
status = env->NewSequentialFile(undump_options.dump_location, &dumpfile,
|
|
ROCKSDB_NAMESPACE::EnvOptions());
|
|
if (!status.ok()) {
|
|
std::cerr << "Unable to open dump file '" << undump_options.dump_location
|
|
<< "' for reading: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
status = dumpfile->Read(8, &slice, scratch8);
|
|
if (!status.ok() || slice.size() != 8 ||
|
|
memcmp(slice.data(), magicstr, 8) != 0) {
|
|
std::cerr << "File '" << undump_options.dump_location
|
|
<< "' is not a recognizable dump file." << std::endl;
|
|
return false;
|
|
}
|
|
|
|
status = dumpfile->Read(8, &slice, scratch8);
|
|
if (!status.ok() || slice.size() != 8 ||
|
|
memcmp(slice.data(), versionstr, 8) != 0) {
|
|
std::cerr << "File '" << undump_options.dump_location
|
|
<< "' version not recognized." << std::endl;
|
|
return false;
|
|
}
|
|
|
|
status = dumpfile->Read(4, &slice, scratch8);
|
|
if (!status.ok() || slice.size() != 4) {
|
|
std::cerr << "Unable to read info blob size." << std::endl;
|
|
return false;
|
|
}
|
|
uint32_t infosize = ROCKSDB_NAMESPACE::DecodeFixed32(slice.data());
|
|
status = dumpfile->Skip(infosize);
|
|
if (!status.ok()) {
|
|
std::cerr << "Unable to skip info blob: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
options.create_if_missing = true;
|
|
status = ROCKSDB_NAMESPACE::DB::Open(options, undump_options.db_path, &dbptr);
|
|
if (!status.ok()) {
|
|
std::cerr << "Unable to open database '" << undump_options.db_path
|
|
<< "' for writing: " << status.ToString() << std::endl;
|
|
return false;
|
|
}
|
|
|
|
const std::unique_ptr<ROCKSDB_NAMESPACE::DB> db(dbptr);
|
|
|
|
uint32_t last_keysize = 64;
|
|
size_t last_valsize = 1 << 20;
|
|
std::unique_ptr<char[]> keyscratch(new char[last_keysize]);
|
|
std::unique_ptr<char[]> valscratch(new char[last_valsize]);
|
|
|
|
while (1) {
|
|
uint32_t keysize, valsize;
|
|
ROCKSDB_NAMESPACE::Slice keyslice;
|
|
ROCKSDB_NAMESPACE::Slice valslice;
|
|
|
|
status = dumpfile->Read(4, &slice, scratch8);
|
|
if (!status.ok() || slice.size() != 4) break;
|
|
keysize = ROCKSDB_NAMESPACE::DecodeFixed32(slice.data());
|
|
if (keysize > last_keysize) {
|
|
while (keysize > last_keysize) last_keysize *= 2;
|
|
keyscratch = std::unique_ptr<char[]>(new char[last_keysize]);
|
|
}
|
|
|
|
status = dumpfile->Read(keysize, &keyslice, keyscratch.get());
|
|
if (!status.ok() || keyslice.size() != keysize) {
|
|
std::cerr << "Key read failure: "
|
|
<< (status.ok() ? "insufficient data" : status.ToString())
|
|
<< std::endl;
|
|
return false;
|
|
}
|
|
|
|
status = dumpfile->Read(4, &slice, scratch8);
|
|
if (!status.ok() || slice.size() != 4) {
|
|
std::cerr << "Unable to read value size: "
|
|
<< (status.ok() ? "insufficient data" : status.ToString())
|
|
<< std::endl;
|
|
return false;
|
|
}
|
|
valsize = ROCKSDB_NAMESPACE::DecodeFixed32(slice.data());
|
|
if (valsize > last_valsize) {
|
|
while (valsize > last_valsize) last_valsize *= 2;
|
|
valscratch = std::unique_ptr<char[]>(new char[last_valsize]);
|
|
}
|
|
|
|
status = dumpfile->Read(valsize, &valslice, valscratch.get());
|
|
if (!status.ok() || valslice.size() != valsize) {
|
|
std::cerr << "Unable to read value: "
|
|
<< (status.ok() ? "insufficient data" : status.ToString())
|
|
<< std::endl;
|
|
return false;
|
|
}
|
|
|
|
status = db->Put(ROCKSDB_NAMESPACE::WriteOptions(), keyslice, valslice);
|
|
if (!status.ok()) {
|
|
fprintf(stderr, "Unable to write database entry\n");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (undump_options.compact_db) {
|
|
status = db->CompactRange(ROCKSDB_NAMESPACE::CompactRangeOptions(), nullptr,
|
|
nullptr);
|
|
if (!status.ok()) {
|
|
fprintf(stderr,
|
|
"Unable to compact the database after loading the dumped file\n");
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|