[SPARK 55093] Handle TaskRunner construction failures in launchTask#1
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ChuckLin2025 wants to merge 5 commits intomasterfrom
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[SPARK 55093] Handle TaskRunner construction failures in launchTask#1ChuckLin2025 wants to merge 5 commits intomasterfrom
ChuckLin2025 wants to merge 5 commits intomasterfrom
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added 2 commits
January 20, 2026 04:01
…on failure - Move createTaskRunner into try-catch block to handle construction failures - Add cleanup to remove TaskRunner from runningTasks if threadPool.execute throws - Prevent potential memory leak by cleaning up TaskRunner when threadPool.execute fails - Update test to use current TaskDescription API
- Use reflection to mock runningTasks.put to throw exception - Tests cleanup logic when TaskRunner is created but fails to be added to runningTasks - Verify exception is properly caught and reported to driver
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ChuckLin2025
changed the title
…ng mocked Executor fields The test was failing because mocked Executor's val fields (runningTasks, threadPool, conf, env, killMarks) were not initialized when using mock[Executor](CALLS_REAL_METHODS). This caused NullPointerExceptions when the real launchTask method tried to access them. Solution: Use reflection to manually set these val fields on the mocked Executor object after creation, allowing the real launchTask method to execute properly and add tasks to the runningTasks map. Test now passes consistently in ~1.4 seconds.
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What changes were proposed in this pull request?
Prevent potential memory leak by cleaning up TaskRunner when threadPool.execute fails
Why are the changes needed?
The createTaskRunner may throw an Exception.
Does this PR introduce any user-facing change?
No
How was this patch tested?
Added an unit test.
Was this patch authored or co-authored using generative AI tooling?
Generated-by: claude-4.5