[jira] [Resolved] (MAPREDUCE-3975) Default value not set for Configuration parameter mapreduce.job.local.dir

["Vinod Kumar Vavilapalli (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli resolved MAPREDUCE-3975.
------------------------------------------------

      Resolution: Fixed
    Release Note: Exporting mapreduce.job.local.dir for mapreduce tasks to use as job-level shared scratch space.
    Hadoop Flags: Reviewed
    
> 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
>             Fix For: 0.23.2
>
>         Attachments: MAPREDUCE-3975-1.txt
>
>
> 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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