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From "Eric Payne (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3975) Default value not set for Configuration parameter mapreduce.job.local.dir
Date Mon, 05 Mar 2012 23:17:58 GMT
Default value not set for Configuration parameter mapreduce.job.local.dir

                 Key: MAPREDUCE-3975
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3975
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.1, 0.23.2
            Reporter: Eric Payne
            Assignee: Eric Payne
            Priority: Blocker

mapreduce.job.local.dir (formerly job.local.dir in 0.20) is not set by default. This is a
regression from 0.20.205.

In 0.20.205, JobLocalizer.createWorkDir() constructs the "$mapred.local.dir/taskTracker/$user/jobcache/$jobid/work"
path based on $user and $jobid, and then sets TaskTracker.JOB_LOCAL_DIR in the job's JobConf.

So far, I haven't found where this is done in 0.23. It could be that this is what should be
done by LocalJobRunner.setupChildMapredLocalDirs(), but I am still investigating.

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