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https://issues.apache.org/jira/browse/BEAM-6018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Udi Meiri resolved BEAM-6018.
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Resolution: Fixed
Fix Version/s: 2.9.0
> Memory leak in GCSUtil.java executeBatches
> ------------------------------------------
>
> Key: BEAM-6018
> URL: https://issues.apache.org/jira/browse/BEAM-6018
> Project: Beam
> Issue Type: Bug
> Components: io-java-gcp
> Affects Versions: 2.7.0
> Reporter: Udi Meiri
> Assignee: Udi Meiri
> Priority: Major
> Fix For: 2.9.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> In streaming pipelines there are multiple calls to moveToOutputFiles
> (https://github.com/apache/beam/blob/42984a821b3e73aee2966d11d7fb436b5ff22b68/sdks/java/core/src/main/java/org/apache/beam/sdk/io/WriteFiles.java#L796).
> When writing to GCS, this call uses executeBatches
> (https://github.com/apache/beam/blob/279a05604b83a54e8e5a79e13d8761f94841f326/sdks/java/extensions/google-cloud-platform-core/src/main/java/org/apache/beam/sdk/util/GcsUtil.java#L551),
> which wraps a thread pool in MoreExecutors.getExitingExecutorService(). This
> wrapper introduces a DelayedShutdownHook which persists until the worker
> exits.
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