ClickHouse/programs/keeper-converter/KeeperConverter.cpp
2023-02-08 12:55:56 +00:00

67 lines
2.8 KiB
C++

#include <iostream>
#include <optional>
#include <boost/program_options.hpp>
#include <Coordination/KeeperSnapshotManager.h>
#include <Coordination/ZooKeeperDataReader.h>
#include <Common/TerminalSize.h>
#include <Poco/ConsoleChannel.h>
#include <Poco/AutoPtr.h>
#include <Poco/Logger.h>
#include <Common/logger_useful.h>
int mainEntryClickHouseKeeperConverter(int argc, char ** argv)
{
using namespace DB;
namespace po = boost::program_options;
po::options_description desc = createOptionsDescription("Allowed options", getTerminalWidth());
desc.add_options()
("help,h", "produce help message")
("zookeeper-logs-dir", po::value<std::string>(), "Path to directory with ZooKeeper logs")
("zookeeper-snapshots-dir", po::value<std::string>(), "Path to directory with ZooKeeper snapshots")
("output-dir", po::value<std::string>(), "Directory to place output clickhouse-keeper snapshot")
;
po::variables_map options;
po::store(po::command_line_parser(argc, argv).options(desc).run(), options);
Poco::AutoPtr<Poco::ConsoleChannel> console_channel(new Poco::ConsoleChannel);
Poco::Logger * logger = &Poco::Logger::get("KeeperConverter");
logger->setChannel(console_channel);
if (options.count("help"))
{
std::cout << "Usage: clickhouse keeper-converter --zookeeper-logs-dir /var/lib/zookeeper/data/version-2 --zookeeper-snapshots-dir /var/lib/zookeeper/data/version-2 --output-dir /var/lib/clickhouse/coordination/snapshots" << std::endl;
std::cout << desc << std::endl;
return 0;
}
try
{
auto keeper_context = std::make_shared<KeeperContext>();
keeper_context->digest_enabled = true;
DB::KeeperStorage storage(/* tick_time_ms */ 500, /* superdigest */ "", keeper_context, /* initialize_system_nodes */ false);
DB::deserializeKeeperStorageFromSnapshotsDir(storage, options["zookeeper-snapshots-dir"].as<std::string>(), logger);
storage.initializeSystemNodes();
DB::deserializeLogsAndApplyToStorage(storage, options["zookeeper-logs-dir"].as<std::string>(), logger);
DB::SnapshotMetadataPtr snapshot_meta = std::make_shared<DB::SnapshotMetadata>(storage.getZXID(), 1, std::make_shared<nuraft::cluster_config>());
DB::KeeperStorageSnapshot snapshot(&storage, snapshot_meta);
DB::KeeperSnapshotManager manager(options["output-dir"].as<std::string>(), 1, keeper_context);
auto snp = manager.serializeSnapshotToBuffer(snapshot);
auto path = manager.serializeSnapshotBufferToDisk(*snp, storage.getZXID());
std::cout << "Snapshot serialized to path:" << path << std::endl;
}
catch (...)
{
std::cerr << getCurrentExceptionMessage(true) << '\n';
return getCurrentExceptionCode();
}
return 0;
}