[jira] [Commented] (KAFKA-3710) MemoryOffsetBackingStore creates a non-daemon thread that prevents clean shutdown

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-3710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15303440#comment-15303440 ] 

ASF GitHub Bot commented on KAFKA-3710:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/kafka/pull/1383


> MemoryOffsetBackingStore creates a non-daemon thread that prevents clean shutdown
> ---------------------------------------------------------------------------------
>
>                 Key: KAFKA-3710
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3710
>             Project: Kafka
>          Issue Type: Bug
>          Components: KafkaConnect
>    Affects Versions: 0.9.0.1
>            Reporter: Peter Davis
>            Assignee: Ewen Cheslack-Postava
>              Labels: easyfix, newbie, patch
>             Fix For: 0.10.1.0
>
>
> MemoryOffsetBackingStore creates an ExecutorService but MemoryOffsetBackingStore.stop() fails to call executor.shutdown().  This creates a zombie non-daemon thread which prevents clean shutdown when running a StandaloneHerder embedded in another application.
> Note that FileOffsetBackingStore extends MemoryOffsetBackingStore so is also affected.



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