apache / apache/gluten

[CH] Flaky test ClickHouseAdaptiveQueryExecSuite

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#10,756 4 comments 0 reactions 0 assignees View on GitHub
bug triage
Dominant language
Scala
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Forks
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Avg merge
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Merged PRs (30d)
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Description

### Backend

VL (Velox)

### Bug description

https://opencicd.kyligence.com/job/gluten/job/gluten-ci/17434/consoleText

[2025-09-18T13:01:16.431Z] 2025-09-18 06:01:16.287 QueryContextManager: 3.99 MiB memory didn't release, There may be a memory leak!
[2025-09-18T13:01:16.473Z] - Gluten - metrics of the shuffle read *** FAILED ***
[2025-09-18T13:01:16.476Z] BuildRight did not equal BuildLeft (ClickHouseAdaptiveQueryExecSuite.scala:766)

### Gluten version

_No response_

### Spark version

None

### Spark configurations

_No response_

### System information

_No response_

### Relevant logs

```bash

```

Contributor guide

Open the contributing guide

Research direction

Start with ClickHouseAdaptiveQueryExecSuite.scala at line 766 and inspect the linked CI console log, especially the memory-release warning and shuffle-read assertion. Trace the failing test and determine the cause of the intermittent BuildRight/BuildLeft mismatch; done means the test no longer flakes and the relevant assertion passes reliably.

Written by the indexing model from the issue text.

Assessment

Tech stack
clickhouse, scala, spark
Domain
backend, testing
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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