mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-24 08:32:02 +00:00
104 lines
2.5 KiB
C++
104 lines
2.5 KiB
C++
#include <iostream>
|
|
#include <boost/program_options.hpp>
|
|
#include <DB/Common/Exception.h>
|
|
#include <Poco/Event.h>
|
|
#include <zkutil/ZooKeeper.h>
|
|
|
|
|
|
/** Выводит в произвольном порядке пути всех узлов ZK. Возможно, только в указанной директории.
|
|
*/
|
|
|
|
struct CallbackState
|
|
{
|
|
std::string path;
|
|
std::list<CallbackState>::const_iterator it;
|
|
};
|
|
|
|
using CallbackStates = std::list<CallbackState>;
|
|
CallbackStates states;
|
|
|
|
zkutil::ZooKeeper * zookeeper;
|
|
|
|
Poco::Event completed;
|
|
|
|
|
|
void process(const CallbackState & state);
|
|
|
|
void callback(
|
|
int rc,
|
|
const String_vector * strings,
|
|
const Stat * stat,
|
|
const void * data)
|
|
{
|
|
const CallbackState * state = reinterpret_cast<const CallbackState *>(data);
|
|
|
|
if (rc != ZOK && rc != ZNONODE)
|
|
{
|
|
std::cerr << zerror(rc) << ", path: " << state->path << "\n";
|
|
}
|
|
|
|
if (rc == ZOK && strings)
|
|
{
|
|
for (int32_t i = 0; i < strings->count; ++i)
|
|
{
|
|
states.emplace_back();
|
|
states.back().path = state->path + (state->path == "/" ? "" : "/") + strings->data[i];
|
|
states.back().it = --states.end();
|
|
|
|
std::cout << states.back().path << '\n';
|
|
process(states.back());
|
|
}
|
|
}
|
|
|
|
states.erase(state->it);
|
|
|
|
if (states.empty())
|
|
completed.set();
|
|
}
|
|
|
|
void process(const CallbackState & state)
|
|
{
|
|
zoo_awget_children2(zookeeper->getHandle(), state.path.data(), nullptr, nullptr, callback, &state);
|
|
}
|
|
|
|
|
|
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::ZooKeeper zookeeper_(options.at("address").as<std::string>());
|
|
zookeeper = &zookeeper_;
|
|
|
|
states.emplace_back();
|
|
states.back().path = options.at("path").as<std::string>();
|
|
states.back().it = --states.end();
|
|
|
|
process(states.back());
|
|
|
|
completed.wait();
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cerr << DB::getCurrentExceptionMessage(true) << '\n';
|
|
throw;
|
|
}
|