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Posted to common-dev@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2009/05/19 09:49:46 UTC
[jira] Commented: (HADOOP-4864) -libjars with multiple jars broken
when client and cluster reside on different OSs
[ https://issues.apache.org/jira/browse/HADOOP-4864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710654#action_12710654 ]
Amareshwari Sriramadasu commented on HADOOP-4864:
-------------------------------------------------
The same changes will be required in addFileToClassPath and getFileClassPaths methods also.
> -libjars with multiple jars broken when client and cluster reside on different OSs
> ----------------------------------------------------------------------------------
>
> Key: HADOOP-4864
> URL: https://issues.apache.org/jira/browse/HADOOP-4864
> Project: Hadoop Core
> Issue Type: Bug
> Components: filecache
> Affects Versions: 0.19.0
> Environment: When your hadoop job spans OSs.
> Reporter: Stuart White
> Priority: Minor
> Attachments: patch.txt
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> When submitting a hadoop job from Windows (Cygwin) to a Linux hadoop cluster (or vice versa), and when you specify multiple additional jar files via the -libjars flag, hadoop throws a ClassNotFoundException for any classes located in the additional jars specified via the -libjars flag.
> This is caused by the fact that hadoop uses system.getProperty("path.separator") as the delimiter in the list of jar files passed via -libjars.
> My suggested solution is to use a comma as the delimiter, rather than the path.separator.
> I realize comma is, perhaps, a poor choice for a delimiter because it is valid in filenames on both Windows and Linux, but the -libjars flag uses it as the delimiter when listing the additional required jars. So, I figured if it's already being used as a delimiter, then it's reasonable to use it internally as well.
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