cockroachdb / cockroachdb/cockroach

Nodes joining a cluster with health?ready=1 incur tail latency

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#142,279 5 comments 0 reactions 0 assignees View on GitHub
branch-release-25.1 branch-release-25.1.0-rc C-bug T-kv
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Description

**Describe the problem**

When adding a node to a cluster, the p99.99 is still impacted when a node is brought online and added to a load balancer.

**To Reproduce**

Add a node to an existing cluster and observe various SQL metrics (e.g. `sql.conn.latency-p99` or `sql.service.latency-p99.99 metrics`).

v25.1.0-rc.1

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Jira issue: CRDB-48260

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