Cleanup of mapred.local.dir after maptask is complete
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Key: HADOOP-2427
URL: https://issues.apache.org/jira/browse/HADOOP-2427
Project: Hadoop
Issue Type: Bug
Components: mapred
Affects Versions: 0.15.1
Reporter: lohit vijayarenu
I see that after a map task is complete, its working directory
(mapred.local.dir)/taskTracker/jobcache/<jobid>/<task_dir> is not deleted
untill the job is complete. If map out files are stored in there, could this be
created in different directory and the working directory cleaned up after map
task is complete. One problem we are seeing is, if a map task creates files
temporary files, they get accumulated and we may run out of disk space thus
failing the job. Relying on the user to cleanup all temp files created is be
error prone.
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