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https://issues.apache.org/jira/browse/HADOOP-1156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12486186
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Konstantin Shvachko commented on HADOOP-1156:
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+1
This fixes NPE in case of DataNode or NameNode failure in MiniDFSCluter.
> NullPointerException in MiniDFSCluster
> --------------------------------------
>
> Key: HADOOP-1156
> URL: https://issues.apache.org/jira/browse/HADOOP-1156
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.12.2
> Reporter: Konstantin Shvachko
> Assigned To: Hairong Kuang
> Fix For: 0.13.0
>
> Attachments: NPE_cluster.patch
>
>
> This was committed with HADOOP-1063
> I'm getting a NullPointerException in MiniDFSCluster.DataNodeRunner.run()
> node.shutdown();
> because node is null. Should it be just
> shutdown();
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