mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-17 20:02:05 +00:00
101 lines
3.4 KiB
C++
101 lines
3.4 KiB
C++
#include <list>
|
|
#include <iostream>
|
|
#include <boost/program_options.hpp>
|
|
#include <Common/Exception.h>
|
|
#include <Common/ZooKeeper/ZooKeeper.h>
|
|
#include <Common/ZooKeeper/KeeperException.h>
|
|
|
|
|
|
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")
|
|
("path,p", boost::program_options::value<std::string>()->default_value("/"),
|
|
"where to start")
|
|
;
|
|
|
|
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 << "Dump paths of all nodes in ZooKeeper." << std::endl;
|
|
std::cout << "Usage: " << argv[0] << " [options]" << std::endl;
|
|
std::cout << desc << std::endl;
|
|
return 1;
|
|
}
|
|
|
|
zkutil::ZooKeeperPtr zookeeper = std::make_shared<zkutil::ZooKeeper>(options.at("address").as<std::string>());
|
|
|
|
std::string initial_path = options.at("path").as<std::string>();
|
|
|
|
std::list<std::pair<std::string, std::future<Coordination::ListResponse>>> list_futures;
|
|
list_futures.emplace_back(initial_path, zookeeper->asyncGetChildren(initial_path));
|
|
|
|
size_t num_reconnects = 0;
|
|
constexpr size_t max_reconnects = 100;
|
|
|
|
auto ensureSession = [&]
|
|
{
|
|
if (zookeeper->expired())
|
|
{
|
|
if (num_reconnects == max_reconnects)
|
|
return false;
|
|
++num_reconnects;
|
|
std::cerr << "num_reconnects: " << num_reconnects << "\n";
|
|
zookeeper = zookeeper->startNewSession();
|
|
}
|
|
return true;
|
|
};
|
|
|
|
for (auto it = list_futures.begin(); it != list_futures.end(); ++it)
|
|
{
|
|
Coordination::ListResponse response;
|
|
|
|
try
|
|
{
|
|
response = it->second.get();
|
|
}
|
|
catch (const Coordination::Exception & e)
|
|
{
|
|
if (e.code == Coordination::Error::ZNONODE)
|
|
{
|
|
continue;
|
|
}
|
|
else if (Coordination::isHardwareError(e.code))
|
|
{
|
|
/// Reinitialize the session and move the node to the end of the queue for later retry.
|
|
if (!ensureSession())
|
|
throw;
|
|
list_futures.emplace_back(it->first, zookeeper->asyncGetChildren(it->first));
|
|
continue;
|
|
}
|
|
else
|
|
throw;
|
|
}
|
|
|
|
std::cout << it->first << '\t' << response.stat.numChildren << '\t' << response.stat.dataLength << '\n';
|
|
|
|
for (const auto & name : response.names)
|
|
{
|
|
std::string child_path = it->first == "/" ? it->first + name : it->first + '/' + name;
|
|
|
|
ensureSession();
|
|
list_futures.emplace_back(child_path, zookeeper->asyncGetChildren(child_path));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cerr << DB::getCurrentExceptionMessage(true) << '\n';
|
|
return 1;
|
|
}
|
|
}
|