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From "roncenzhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-22272) killing task may cause the executor progress hang because of the JVM bug
Date Mon, 16 Oct 2017 02:03:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-22272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16205372#comment-16205372
] 

roncenzhao commented on SPARK-22272:
------------------------------------

The spark 2.1.x still supports jdk1.7 so IMHO I think spark should avoid this problem if you
have known the bug in jdk1.7.
Thanks~

> killing task may cause the executor progress hang because of the JVM bug
> ------------------------------------------------------------------------
>
>                 Key: SPARK-22272
>                 URL: https://issues.apache.org/jira/browse/SPARK-22272
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.1.1
>         Environment: java version "1.7.0_75"
> hadoop version 2.5.0
>            Reporter: roncenzhao
>         Attachments: 26883.jstack, screenshot-1.png, screenshot-2.png
>
>
> JVM bug: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8132693
> We kill the task using 'Thread.interrupt()' and the ShuffleMapTask use nio to merge all
partitions files when 'spark.file.transferTo' is true(default), so it may cause the jvm bug.
> When the driver send one task to this bad executor, the task will never run and as a
result the job will hang forever without handling.



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