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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-316) YARN container launch may exceed maximum Windows command line length due to long classpath
Date Thu, 24 Jan 2013 19:37:14 GMT

    [ https://issues.apache.org/jira/browse/YARN-316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13561891#comment-13561891
] 

Bikas Saha commented on YARN-316:
---------------------------------

I am in favor of keeping a windows specific path for classpath jar now and definitely open
a jira to merge the code paths later on. I would be wary of destabilizing the linux path while
edge cases and other bugs gets ironed out on windows. The perf needs to be measured. The branch-1-win
jira should have some discussion on perf tests conducted to measure the difference. We might
need to redo them for trunk because the code is different and perf results might be different.
Please ignore strsubstitutor. Doesnt seem worth the effort.
So even the simple class name and symlink are just about working for the current set of test
case names. We might need another fix for this down the road.
                
> YARN container launch may exceed maximum Windows command line length due to long classpath
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-316
>                 URL: https://issues.apache.org/jira/browse/YARN-316
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 3.0.0, trunk-win
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: YARN-316-branch-trunk-win.1.patch, YARN-316-branch-trunk-win.2.patch
>
>
> On Windows, a command line longer than 8192 characters will fail.  This can cause YARN
container launch to fail on Windows if the classpath argument exceeds this limit.

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