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https://issues.apache.org/jira/browse/HADOOP-5513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683160#action_12683160
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Hairong Kuang commented on HADOOP-5513:
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Nigel, I am not saying that throwing NullPointerException at the command line
is not a bug. But what I am trying to figure out is if this is a blocker to
0.20. The answer is no if the error was introduced by a wrong
setup/configuration.
> Balancer throws NullPointerException
> ------------------------------------
>
> Key: HADOOP-5513
> URL: https://issues.apache.org/jira/browse/HADOOP-5513
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.20.0
> Reporter: Ramya R
> Priority: Minor
> Fix For: 0.20.0
>
>
> Balancer command seems to be throwing NullPointerException when run on 0.20
> using fairshare scheduler
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