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https://issues.apache.org/jira/browse/ACCUMULO-2532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13948571#comment-13948571
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Josh Elser commented on ACCUMULO-2532:
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[~mdrob], I think it was because I didn't always use a single temp directory. I
know at least one of the tests made two temp directories (to be a slightly more
honest test than create two "volume" dirs beneath a common parent).
> FileUtil expects instance.dfs.dir in tmpDir path
> ------------------------------------------------
>
> Key: ACCUMULO-2532
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2532
> Project: Accumulo
> Issue Type: Sub-task
> Components: master, tserver
> Reporter: Josh Elser
> Assignee: Josh Elser
> Priority: Critical
> Fix For: 1.6.0
>
>
> FileUtil#cleanupIndexOp(AccumuloConfiguration, Path, VolumeManager,
> ArrayList) checks that the temporary directory Path it was given ends with
> the value of instance.dfs.dir and "/tmp".
> instance.dfs.dir is no longer appended to each volume, so this check is
> likely wrong and result in tmp directories not being cleaned up properly.
> This also necessitates a unit test to prevent from happening again.
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