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https://issues.apache.org/jira/browse/HADOOP-4721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650646#action_12650646
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Ceki Gulcu commented on HADOOP-4721:
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Looking at the source code of MiniDFSCluster.java [1], I can't see any 
references to logging. 

What happens when you disable logging altogether? Maybe there is no memory 
because there is a leak somewhere unrelated to log4j.

[1] http://tinyurl.com/69soss



> OOM in .TestSetupAndCleanupFailure
> ----------------------------------
>
>                 Key: HADOOP-4721
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4721
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.20.0
>         Environment: 64 bit linux with JRockit 64-bit JVM
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>         Attachments: log4j.properties
>
>
> The root cause may be my lifecycle changes, but I'm seeing an OOM in 
> TestSetupAndCleanupFailure

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