ClickHouse/dbms/src/Interpreters/SystemLog.cpp
2020-01-23 22:21:57 +03:00

105 lines
3.4 KiB
C++

#include <Interpreters/SystemLog.h>
#include <Interpreters/QueryLog.h>
#include <Interpreters/QueryThreadLog.h>
#include <Interpreters/PartLog.h>
#include <Interpreters/TextLog.h>
#include <Interpreters/TraceLog.h>
#include <Interpreters/MetricLog.h>
#include <Poco/Util/AbstractConfiguration.h>
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
}
namespace
{
constexpr size_t DEFAULT_SYSTEM_LOG_FLUSH_INTERVAL_MILLISECONDS = 7500;
/// Creates a system log with MergeTree engine using parameters from config
template <typename TSystemLog>
std::shared_ptr<TSystemLog> createSystemLog(
Context & context,
const String & default_database_name,
const String & default_table_name,
const Poco::Util::AbstractConfiguration & config,
const String & config_prefix)
{
if (!config.has(config_prefix))
return {};
String database = config.getString(config_prefix + ".database", default_database_name);
String table = config.getString(config_prefix + ".table", default_table_name);
String engine;
if (config.has(config_prefix + ".engine"))
{
if (config.has(config_prefix + ".partition_by"))
throw Exception("If 'engine' is specified for system table, PARTITION BY parameters should be specified directly inside 'engine' and 'partition_by' setting doesn't make sense", ErrorCodes::BAD_ARGUMENTS);
engine = config.getString(config_prefix + ".engine");
}
else
{
String partition_by = config.getString(config_prefix + ".partition_by", "toYYYYMM(event_date)");
engine = "ENGINE = MergeTree PARTITION BY (" + partition_by + ") ORDER BY (event_date, event_time) SETTINGS index_granularity = 1024";
}
size_t flush_interval_milliseconds = config.getUInt64(config_prefix + ".flush_interval_milliseconds", DEFAULT_SYSTEM_LOG_FLUSH_INTERVAL_MILLISECONDS);
return std::make_shared<TSystemLog>(context, database, table, engine, flush_interval_milliseconds);
}
}
SystemLogs::SystemLogs(Context & global_context, const Poco::Util::AbstractConfiguration & config)
{
query_log = createSystemLog<QueryLog>(global_context, "system", "query_log", config, "query_log");
query_thread_log = createSystemLog<QueryThreadLog>(global_context, "system", "query_thread_log", config, "query_thread_log");
part_log = createSystemLog<PartLog>(global_context, "system", "part_log", config, "part_log");
trace_log = createSystemLog<TraceLog>(global_context, "system", "trace_log", config, "trace_log");
text_log = createSystemLog<TextLog>(global_context, "system", "text_log", config, "text_log");
metric_log = createSystemLog<MetricLog>(global_context, "system", "metric_log", config, "metric_log");
if (metric_log)
{
size_t collect_interval_milliseconds = config.getUInt64("metric_log.collect_interval_milliseconds");
metric_log->startCollectMetric(collect_interval_milliseconds);
}
part_log_database = config.getString("part_log.database", "system");
}
SystemLogs::~SystemLogs()
{
shutdown();
}
void SystemLogs::shutdown()
{
if (query_log)
query_log->shutdown();
if (query_thread_log)
query_thread_log->shutdown();
if (part_log)
part_log->shutdown();
if (trace_log)
trace_log->shutdown();
if (text_log)
text_log->shutdown();
if (metric_log)
{
metric_log->stopCollectMetric();
metric_log->shutdown();
}
}
}