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https://github.com/ClickHouse/ClickHouse.git
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69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
#include <Interpreters/SystemLog.h>
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#include <Interpreters/QueryLog.h>
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#include <Interpreters/QueryThreadLog.h>
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#include <Interpreters/PartLog.h>
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#include <Poco/Util/AbstractConfiguration.h>
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namespace DB
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{
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namespace
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{
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constexpr size_t DEFAULT_SYSTEM_LOG_FLUSH_INTERVAL_MILLISECONDS = 7500;
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/// Creates a system log with MergeTree engine using parameters from config
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template <typename TSystemLog>
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std::shared_ptr<TSystemLog> createSystemLog(
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Context & context,
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const String & default_database_name,
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const String & default_table_name,
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const Poco::Util::AbstractConfiguration & config,
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const String & config_prefix)
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{
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if (!config.has(config_prefix))
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return {};
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String database = config.getString(config_prefix + ".database", default_database_name);
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String table = config.getString(config_prefix + ".table", default_table_name);
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String partition_by = config.getString(config_prefix + ".partition_by", "toYYYYMM(event_date)");
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String engine = "ENGINE = MergeTree PARTITION BY (" + partition_by + ") ORDER BY (event_date, event_time) SETTINGS index_granularity = 1024";
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size_t flush_interval_milliseconds = config.getUInt64(config_prefix + ".flush_interval_milliseconds", DEFAULT_SYSTEM_LOG_FLUSH_INTERVAL_MILLISECONDS);
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return std::make_shared<TSystemLog>(context, database, table, engine, flush_interval_milliseconds);
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}
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}
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SystemLogs::SystemLogs(Context & global_context, const Poco::Util::AbstractConfiguration & config)
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{
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query_log = createSystemLog<QueryLog>(global_context, "system", "query_log", config, "query_log");
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query_thread_log = createSystemLog<QueryThreadLog>(global_context, "system", "query_thread_log", config, "query_thread_log");
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part_log = createSystemLog<PartLog>(global_context, "system", "part_log", config, "part_log");
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part_log_database = config.getString("part_log.database", "system");
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}
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SystemLogs::~SystemLogs()
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{
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shutdown();
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}
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void SystemLogs::shutdown()
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{
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if (query_log)
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query_log->shutdown();
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if (query_thread_log)
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query_thread_log->shutdown();
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if (part_log)
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part_log->shutdown();
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}
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}
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