Cluster Diagnostics: Troubleshoot Cluster Issues Using Only SQL Queries

5 years ago dzone.com

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by Ideally, a TiDB cluster should always be efficient and problem-free.

In TiDB 4.0, if you want to diagnose or inspect the cluster within a time range, or check the load of the cluster, you can generate a diagnostic report for some time in TiDB Dashboard.

The monitoring execution time report presents the monitoring time for each component in the cluster and what percentage it is of the total execution time for all queries. You can use this report to quickly determine whether a component's execution time is too long and whether there is a bottleneck.

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