apache / apache/druid

Flaky Test: CostBasedAutoScalerIntegrationTest

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Dominant language
Java
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Merged PRs (30d)
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Description

```
ClusterByStatisticsCollectorImplTest:1 | test_clusterByXYbucketByX_threeX_uniqueY 2.141s
embedded-tests/target/test-classes/org/apache/druid/testing/embedded/indexing/autoscaler/CostBasedAutoScalerIntegrationTest.class:226 | Timed out waiting for event after [600,000]ms 602.58s

```

Ref https://github.com/apache/druid/pull/19266

One of the run https://github.com/apache/druid/actions/runs/26437247267/job/77822781252?pr=19266

Contributor guide

Open the contributing guide

Research direction

Start with embedded-tests/target/test-classes/org/apache/druid/testing/embedded/indexing/autoscaler/CostBasedAutoScalerIntegrationTest.class at line 226, then review the referenced pull request and CI job. Reproduce the timeout and determine why the test waits 600,000 ms; done means the flaky failure is understood and the test completes reliably.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
testing
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
42/100

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