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Date: Tue, 23 Jul 2013 19:45:09 +0000 (UTC)
From: "Chris Nauroth (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12629130.1359056394552.99069.1374608709151@arcas>
In-Reply-To: <JIRA.12629130.1359056394552@arcas>
References: <JIRA.12629130.1359056394552@arcas>
Subject: [jira] [Commented] (YARN-358) bundle container classpath in
 temporary jar on all platforms, not just Windows
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    [ https://issues.apache.org/jira/browse/YARN-358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13717526#comment-13717526 ] 

Chris Nauroth commented on YARN-358:
------------------------------------

Hi, [~ndimiduk]!

I think you're primarily interested in being able to call {{FileUtil#createJarWithClassPath}}, right?  The current status is that the method exists in trunk, branch-2, and merged through to branch-2.1.0-beta.  There is also an earlier version of the method in branch-1-win, although this version doesn't correctly handle all of the edge cases that I discovered while getting YARN nodemanager to work on Windows.

MAPREDUCE-4959 tracks backporting the fully functional trunk version to branch-1-win.

YARN-358 is a different thing.  This tracks removing a Windows conditional check so that nodemanager uses this classpath jar technique on all platforms, not just Windows.

If I understand the situation correctly, then MAPREDUCE-4959 is the more appropriate jira for you to watch.  If that sounds good to you, let me know, and I'll expand the scope of MAPREDUCE-4959 so that {{FileUtil#createJarWithClassPath}} goes to branch-1 too (not just branch-1-win).

                
> bundle container classpath in temporary jar on all platforms, not just Windows
> ------------------------------------------------------------------------------
>
>                 Key: YARN-358
>                 URL: https://issues.apache.org/jira/browse/YARN-358
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: trunk-win
>            Reporter: Chris Nauroth
>
> Currently, a Windows-specific code path bundles the classpath into a temporary jar with a manifest to work around command line length limitations.  This code path does not need to be Windows-specific.  We can use the same approach on all platforms.

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