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Posted to mapreduce-dev@hadoop.apache.org by "Ramya Sunil (JIRA)" <ji...@apache.org> on 2011/07/30 01:36:09 UTC

[jira] [Created] (MAPREDUCE-2758) MR-279: Log info about the location of dist cache

MR-279: Log info about the location of dist cache
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                 Key: MAPREDUCE-2758
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2758
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Ramya Sunil
            Priority: Minor
             Fix For: 0.23.0


Currently, there is no log info available about the actual location of the file/archive in dist cache being used by the task except for the "ln" command in task.sh. We need to log this information to help in debugging esp in those cases where there are more than one archive with the same name. 
In 0.20.x, in task logs, one could find log info such as the following:
INFO org.apache.hadoop.mapred.TaskRunner: Creating symlink: <distcache location>/archive <- <mapred.local.dir>/archive 

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