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Merge pull request #8794 from zlobober/custom_query_log_engine

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Make system log engine customizable via config.
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alexey-milovidov 2020-01-25 17:38:50 +03:00 committed by GitHub
commit 2a6b628db9
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1 changed files with 18 additions and 2 deletions
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20
dbms/src/Interpreters/SystemLog.cpp
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@ -12,6 +12,11 @@
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
}
namespace
{
@ -31,8 +36,19 @@ std::shared_ptr<TSystemLog> createSystemLog(
String database = config.getString(config_prefix + ".database", default_database_name);
String table = config.getString(config_prefix + ".table", default_table_name);
String partition_by = config.getString(config_prefix + ".partition_by", "toYYYYMM(event_date)");
String engine = "ENGINE = MergeTree PARTITION BY (" + partition_by + ") ORDER BY (event_date, event_time)";
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);