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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8851) Use -XX:+HeapDumpOnOutOfMemoryError JVM option in the forked tests
Date Sat, 29 Sep 2012 07:42:08 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13466152#comment-13466152

Aaron T. Myers commented on HADOOP-8851:

Hi Ivan, can you comment on what testing you've done of this patch? Did you perhaps modify
a test to artificially induce an OOME and then observe that the heap dump showed up in the
test output? For that matter, where does the heap dump show up? On the console? In some test
output file?
> Use -XX:+HeapDumpOnOutOfMemoryError JVM option in the forked tests
> ------------------------------------------------------------------
>                 Key: HADOOP-8851
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8851
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Ivan A. Veselovsky
>            Assignee: Ivan A. Veselovsky
>            Priority: Minor
>         Attachments: HADOOP-8851-vs-trunk.patch
> This can help to reveal the cause of issue in the event of OOME in tests.
> Suggested patch attached.

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