系统。metric_log

包含表中度量值的历史记录 system.metrics 和 system.events，定期刷新到磁盘。 打开指标历史记录收集 system.metric_log,创建 /etc/clickhouse-server/config.d/metric_log.xml 具有以下内容:

示例

另请参阅

• 系统。asynchronous_metrics — Contains periodically calculated metrics.
• 系统。活动 — Contains a number of events that occurred.
• 系统。指标 — Contains instantly calculated metrics.
• 监测 — Base concepts of ClickHouse monitoring.