FrankChen021 opened a new issue, #20809: URL: https://github.com/apache/druid/issues/20809
_This issue was generated automatically by Claude Code (Anthropic's AI coding agent) running a scheduled CI-triage routine on behalf of @FrankChen021. Analysis and suggested fixes are AI-produced; please verify before acting on them._ **Status:** Open: no fix PR **Subject:** `IndexParallelTaskTest.test_runIndexTask_andReindexIntoAnotherDatasource` with `SingleDimensionPartitionsSpec` (embedded-tests, `unit tests (25, I*,L*,J*)`) **Failures:** 2 · **First seen:** 2026-10-31 · **Last seen:** 2026-10-31 ### Root cause The first `index_parallel` task in the test (`IndexParallelTaskTest.java:134`) did not emit `task/run/time` within `LatchableEmitter`'s default 10 s wait in `EmbeddedClusterApis.waitForTaskToFinish`. With `SingleDimensionPartitionsSpec` (parameter `[3]`) the supervisor task runs three sequential phases (dimension distribution, range-partitioned segment generation, merge), each spawning sub-tasks on the Indexer, so it is the slowest variant and has the least headroom on a loaded runner. Both failures came from commits merged within 5 minutes of each other, whose CI runs overlapped; `317feddae9`, merged between them, passed the same job, and neither commit touches batch indexing. ### Suggested fix Give `runTask` in `IndexParallelTaskTest` a longer wait for multi-phase tasks (for example, an `EmbeddedClusterApis.runTask` overload that takes a timeout, used with ~60 s for range and hash partitioning) instead of the 10 s default. ### Occurrences Failed push-triggered master jobs only. The daily triage routine adds one row per new failed job. | Date | Commit | Job | Failure log | Detail | Reported in | |---|---|---|---|---|---| | 2026-10-31 | 5abae39110 (#20781) | `unit tests / unit tests(main) (25, I*,L*,J*) / test-jdk25-[I*,L*,J*]` | [job 124378508194](https://github.com/apache/druid/actions/runs/41148306776/job/124378508194) | `[3]` (`SingleDimensionPartitionsSpec`): `Timed out waiting for event after [10,000]ms` waiting for the first task to finish; 1 attempt, no retry | | | 2026-10-31 | 36d8e07aad (#20299) | `unit tests / unit tests(main) (25, I*,L*,J*) / test-jdk25-[I*,L*,J*]` | [job 124379850631](https://github.com/apache/druid/actions/runs/41148721582/job/124379850631) | `[3]` (`SingleDimensionPartitionsSpec`): same 10 s timeout on the first task; 1 attempt, no retry | | -- 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]
