[null,null,["最后更新时间 (UTC):2025-01-14。"],[[["Log-based metrics are created using filters to count matching log entries within a project, like tracking trip creation events."],["Metrics data starts accumulating only after metric creation and doesn't include pre-existing log entries."],["You can set up alerts to get notified when a metric violates pre-defined thresholds."],["For further log analysis and insights, you can integrate with BigQuery."]]],[]]