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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8765) LocalDirAllocator.ifExists API is broken and unused
Date Sat, 02 May 2015 04:22:09 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14524562#comment-14524562
] 

Hadoop QA commented on HADOOP-8765:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | patch |   0m  0s | The patch command could not apply the patch during
dryrun. |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12544036/HADOOP-8765-for-1-0-x.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / f1a152c |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/6259/console |


This message was automatically generated.

> 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-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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