ClickHouse/dbms/programs/server/MetricsTransmitter.h
Alexey Milovidov 51044279e5 Squashed #2471
2018-06-05 23:09:51 +03:00

57 lines
1.3 KiB
C++

#pragma once
#include <condition_variable>
#include <mutex>
#include <string>
#include <thread>
#include <vector>
#include <Common/ProfileEvents.h>
namespace DB
{
class AsynchronousMetrics;
class Context;
/** Automatically sends
* - difference of ProfileEvents;
* - values of CurrentMetrics;
* - values of AsynchronousMetrics;
* to Graphite at beginning of every minute.
*/
class MetricsTransmitter
{
public:
MetricsTransmitter(Context & context_,
const AsynchronousMetrics & async_metrics_,
const std::string & config_name_)
: context(context_)
, async_metrics(async_metrics_)
, config_name(config_name_)
{
}
~MetricsTransmitter();
private:
void run();
void transmit(std::vector<ProfileEvents::Count> & prev_counters);
Context & context;
const AsynchronousMetrics & async_metrics;
const std::string config_name;
bool quit = false;
std::mutex mutex;
std::condition_variable cond;
std::thread thread{&MetricsTransmitter::run, this};
static constexpr auto profile_events_path_prefix = "ClickHouse.ProfileEvents.";
static constexpr auto current_metrics_path_prefix = "ClickHouse.Metrics.";
static constexpr auto asynchronous_metrics_path_prefix = "ClickHouse.AsynchronousMetrics.";
};
}