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From "Ivan Mitic (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8734) LocalJobRunner does not support private distributed cache
Date Thu, 13 Sep 2012 15:17:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454943#comment-13454943
] 

Ivan Mitic commented on HADOOP-8734:
------------------------------------

Thanks Bikas.

bq. So if I understand this right, this fixes a generic deficiency in LocalJobRunner which
wasnt showing up because by default files are public to read on Linux FS and so LocalJobRunner
would not see issues in accessing private distributed cache from the local FS.
Correct, this is how I see the problem.

bq. Also, this would make the change to TestMRWithDistributedCache unnecessary?
Given that I'm making a bug fix I should also add a test case that catches the bug. In this
case, it was enough to slightly modify one test to catch the bug. Make sense?

                
> LocalJobRunner does not support private distributed cache
> ---------------------------------------------------------
>
>                 Key: HADOOP-8734
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8734
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: filecache
>            Reporter: Ivan Mitic
>            Assignee: Ivan Mitic
>         Attachments: HADOOP-8734-LocalJobRunner.patch
>
>
> It seems that LocalJobRunner does not support private distributed cache. The issue is
more visible on Windows as all DC files are private by default (see HADOOP-8731).

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