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https://issues.apache.org/jira/browse/HDFS-4940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13721096#comment-13721096
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Colin Patrick McCabe commented on HDFS-4940:
--------------------------------------------

HADOOP-9676 was not the root cause.  It was just a secondary issue that was 
making debugging more difficult.  We are still waiting on more data (such as 
logs) to help understand why BigTop's TestCLI is failing.

Roman will be back from vacation next week and I believe he said "I'll totally 
pick this JIRA back up once I get back."  So I will assign this to him.
                
> namenode OOMs under Bigtop's TestCLI
> ------------------------------------
>
>                 Key: HDFS-4940
>                 URL: https://issues.apache.org/jira/browse/HDFS-4940
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.1.0-beta
>            Reporter: Roman Shaposhnik
>            Priority: Blocker
>             Fix For: 2.1.0-beta
>
>
> Bigtop's TestCLI when executed against Hadoop 2.1.0 seems to make it OOM 
> quite reliably regardless of the heap size settings. I'm attaching a heap 
> dump URL. Alliteratively anybody can just take Bigtop's tests, compiled them 
> against Hadoop 2.1.0 bits and try to reproduce it.  

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