ClickHouse/utils/zookeeper-remove-by-list/main.cpp

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#include <list>
#include <Common/ZooKeeper/ZooKeeper.h>
#include <IO/ReadHelpers.h>
#include <IO/ReadBufferFromFileDescriptor.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: example01e.yandex.ru:2181")
;
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 << "Remove nodes in ZooKeeper by list passed in stdin." << std::endl;
std::cout << "Usage: " << argv[0] << " [options] < list_of_nodes_on_each_line" << std::endl;
std::cout << desc << std::endl;
return 1;
}
zkutil::ZooKeeper zookeeper(options.at("address").as<std::string>());
DB::ReadBufferFromFileDescriptor in(STDIN_FILENO);
std::list<std::future<Coordination::RemoveResponse>> futures;
std::cerr << "Requested: ";
while (!in.eof())
{
std::string path;
DB::readEscapedString(path, in);
DB::assertString("\n", in);
futures.emplace_back(zookeeper.asyncRemove(path));
std::cerr << ".";
}
std::cerr << "\n";
std::cerr << "Done: ";
for (auto & future : futures)
{
try
{
future.get();
}
catch (...)
{
std::cerr << DB::getCurrentExceptionMessage(true) << '\n';
}
std::cerr << ".";
}
std::cerr << "\n";
return 0;
}
catch (const Poco::Exception & e)
{
std::cerr << DB::getCurrentExceptionMessage(true) << '\n';
throw;
}