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From Juho Mäkinen (JIRA) <j...@apache.org>
Subject [jira] Created: (HADOOP-4002) Path separator in DistributedCache does not work between windows and unix
Date Fri, 22 Aug 2008 12:00:44 GMT
Path separator in DistributedCache does not work between windows and unix
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                 Key: HADOOP-4002
                 URL: https://issues.apache.org/jira/browse/HADOOP-4002
             Project: Hadoop Core
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.17.2
         Environment: Client in Windows XP with hadoop-0.18.0 and server running on Linux
x64 with java "1.6.0_10-beta"
            Reporter: Juho Mäkinen


DistributedCache.addfileToClassPath adds the files to mapred.job.classpath.files which can
be seen in the jobs xml description. When the job is created and submitted from a windows
machine the path separator is ";". This can be seen in the configuration: mapred.job.classpath.files
/user/garo/lib/javolution.jar;/user/garo/lib/java-utils.jar

When the job is submitted over network to a Hadoop cluster running on Linux the path separator
is ":". This affects the DistributedCache.getFileClassPath method which separates the mapred.job.classpath.files
configuration using the system path separator, which is ":". This renders all classpath additions
invalid using DistributedCache.addFileToClassPath.

Temporary sollution: I've simply added ";" to the StringTokenizer in DistributedCache.getFileClassPath,
but I'm not certain if it's a good sollution.

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