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Posted to mapreduce-dev@hadoop.apache.org by "Noah Watkins (JIRA)" <ji...@apache.org> on 2014/10/23 03:10:34 UTC

[jira] [Created] (MAPREDUCE-6136) MRAppMaster doesn't shutdown file systems

Noah Watkins created MAPREDUCE-6136:
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             Summary: MRAppMaster doesn't shutdown file systems
                 Key: MAPREDUCE-6136
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6136
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: applicationmaster
    Affects Versions: 2.4.1
            Reporter: Noah Watkins


When MRAppMaster exit it doesn't call close on its open file systems instances.

MAPREDUCE-3614 sets conf.setBoolean("fs.automatic.close", false); in MRAppMaster::main and then called FileSystem.closeAll() in MRAppMasterShutdownHook.

However, MAPREDUCE-4205 removed the call to FileSystem.closeAll() MRAppMasterShutdownHook but left `fs.automatic.close` set to false.

Removing `conf.setBoolean("fs.automatic.close", false);` worked for me, but it wasn't clear if this had other implications.



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