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https://issues.apache.org/jira/browse/HDFS-2974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13211637#comment-13211637
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Todd Lipcon commented on HDFS-2974:
-----------------------------------
+1
> HA: MiniDFSCluster does not delete standby NN name dirs during format
> ---------------------------------------------------------------------
>
> Key: HDFS-2974
> URL: https://issues.apache.org/jira/browse/HDFS-2974
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, test
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Attachments: HDFS-2974-HDFS-1623.patch
>
>
> When the MiniDFSCluster is formtting an HA cluster, it formats the first NN,
> and then copies the contents of that directory to the second NNs name dirs.
> However, the second NNs name dirs are not emptied first, and thus a previous
> test's state may interfere with the test.
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