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Posted to common-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2015/05/06 05:33:21 UTC
[jira] [Updated] (HADOOP-8765) LocalDirAllocator.ifExists API is
broken and unused
[ https://issues.apache.org/jira/browse/HADOOP-8765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Allen Wittenauer updated HADOOP-8765:
-------------------------------------
Labels: BB2015-05-TBR (was: )
> LocalDirAllocator.ifExists API is broken and unused
> ---------------------------------------------------
>
> Key: HADOOP-8765
> URL: https://issues.apache.org/jira/browse/HADOOP-8765
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: Hemanth Yamijala
> Assignee: Hemanth Yamijala
> Priority: Minor
> Labels: BB2015-05-TBR
> Attachments: HADOOP-8765-for-1-0-x.patch, HADOOP-8765.patch
>
>
> LocalDirAllocator.ifExists calls AllocatorPerContext.ifExists, which accesses the localDirsPath variable that is uninitialised. Hence, any code that uses this API is likely to fail with a NullPointerException.
> However, this API is currently not used anywhere else in trunk. The earlier usage was in IsolationRunner, that has since been removed via MAPREDUCE-2606.
> Hence, we could remove this API for trunk, and if required, fix it for the 1.x branch.
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