ClickHouse/utils/zookeeper-create-entry-to-download-part/main.cpp

#include <DB/Storages/MergeTree/ReplicatedMergeTreeLogEntry.h>
#include <zkutil/ZooKeeper.h>
#include <boost/program_options.hpp>


int main(int argc, char ** argv)
try
{
	boost::program_options::options_description desc("Allowed options");
	desc.add_options()
	("help,h", "produce help message")
	("address,a", boost::program_options::value<std::string>()->required(),
	 "addresses of ZooKeeper instances, comma separated. Example: mtmon01e.yandex.ru:2181")
	("path,p", boost::program_options::value<std::string>()->required(), "path of replica queue to insert node (without trailing slash)")
	("name,n", boost::program_options::value<std::string>()->required(), "name of part to download")
	;

	boost::program_options::variables_map options;
	boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), options);

	if (options.count("help"))
	{
		std::cout << "Insert log entry to replication queue to download part from any replica." << std::endl;
		std::cout << "Usage: " << argv[0] << " [options]" << std::endl;
		std::cout << desc << std::endl;
		return 1;
	}

	std::string path = options.at("path").as<std::string>();
	std::string name = options.at("name").as<std::string>();

	zkutil::ZooKeeper zookeeper(options.at("address").as<std::string>());

	DB::ReplicatedMergeTreeLogEntry entry;
	entry.type = DB::ReplicatedMergeTreeLogEntry::MERGE_PARTS;
	entry.parts_to_merge = {name};
	entry.new_part_name = name;

	zookeeper.create(path + "/queue-", entry.toString(), zkutil::CreateMode::PersistentSequential);
	return 0;
}
catch (const Poco::Exception & e)
{
	std::cerr << DB::getCurrentExceptionMessage(true) << '\n';
	throw;
}