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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8765) LocalDirAllocator.ifExists API is broken and unused
Date Wed, 05 Sep 2012 06:01:08 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Hemanth Yamijala updated HADOOP-8765:

    Attachment: HADOOP-8765.patch

Attached patch removes the ifExists API and AllocatorPerContext.ifExists API as well. Could
someone please review ?
> 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
>         Attachments: 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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