ruanwenjun opened a new pull request, #7509: URL: https://github.com/apache/kyuubi/pull/7509
### Why are the changes needed? Kyuubi already exposes operation execution time metrics, but there is no server-side metric for how long a new engine takes to become available. This patch adds an engine startup time histogram so operators can observe successful engine startup latency, including waiting for startup permits, launching the engine, cluster scheduling, engine initialization, and discovery by the Kyuubi server. ### How was this patch tested? - `git diff --check` - `build/mvn spotless:apply -pl kyuubi-metrics,kyuubi-server -DskipTests` - `build/mvn test -pl kyuubi-server -am -Dtest=none -DwildcardSuites=org.apache.kyuubi.engine.EngineRefWithZookeeperSuite` ### Was this patch authored or co-authored using generative AI tooling? Assisted-by: OpenAI Codex (GPT-5) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
