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Posted to issues@spark.apache.org by "Kousuke Saruta (JIRA)" <ji...@apache.org> on 2018/08/28 17:45:00 UTC
[jira] [Created] (SPARK-25266) Fix memory leak vulnerability in
Barrier Execution Mode
Kousuke Saruta created SPARK-25266:
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Summary: Fix memory leak vulnerability in Barrier Execution Mode
Key: SPARK-25266
URL: https://issues.apache.org/jira/browse/SPARK-25266
Project: Spark
Issue Type: Bug
Components: Scheduler, Spark Core
Affects Versions: 2.4.0
Reporter: Kousuke Saruta
Assignee: Kousuke Saruta
BarrierCoordinator$ uses Timer and TimerTask. `TimerTask#cancel()` is invoked in ContextBarrierState#cancelTimerTask but `Timer#purge()` is never invoked.
Once a TimerTask is scheduled, the reference to it is not released until `Timer#purge()` is invoked even though `TimerTask#cancel()` is invoked.
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