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From "Yechao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-14727) llap-server may case file descriptor leak in BuddyAllocator class
Date Fri, 09 Sep 2016 09:05:20 GMT
Yechao Chen created HIVE-14727:
----------------------------------

             Summary: llap-server may case file descriptor leak in BuddyAllocator class
                 Key: HIVE-14727
                 URL: https://issues.apache.org/jira/browse/HIVE-14727
             Project: Hive
          Issue Type: Bug
          Components: llap
    Affects Versions: 2.2.0
            Reporter: Yechao Chen
            Assignee: Yechao Chen


llap-server,the method preallocate(int) of  BuddyAllocator may case file descriptor leak when
FileChannel map allocate memory error.

the code:
        //here if failed
         ByteBuffer rwbuf = rwf.getChannel().map(MapMode.READ_WRITE, 0, arenaSize);
        // A mapping, once established, is not dependent upon the file channel that was used
to
        // create it. delete file and hold onto the map
       //can not close() and delete file
        rwf.close();
        rf.delete();




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