[jira] [Created] (MAPREDUCE-6867) ApplicationMaster hung on OOM Error

["Bilwa S T (JIRA)" <ji...@apache.org>]

Bilwa S T created MAPREDUCE-6867:
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             Summary: ApplicationMaster hung on OOM Error
                 Key: MAPREDUCE-6867
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6867
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: applicationmaster
            Reporter: Bilwa S T


Whenever OOM Error is thown, {{YarnUncaughtExceptionHandler}} will call {{ExitUtil.halt(-1)}}.But while halting, OOM might occur which is not handled. 

We came across a scenario where in when we submit mapreduce application ,OOM error occured in {{committerEventProcessor}} and then AM did not halt and did not log the following.Finally AM got hang since it's not thrown to main thread.

{code}LOG.info("Halt with status " + status + " Message: " + msg);{code}

 *org.apache.hadoop.util.ExitUtil.halt(int, String)* 
{code}
public static void halt(int status, String msg) throws HaltException {
    LOG.info("Halt with status " + status + " Message: " + msg);
    if (systemHaltDisabled) {
      HaltException ee = new HaltException(status, msg);
      LOG.fatal("Halt called", ee);
      if (null == firstHaltException) {
        firstHaltException = ee;
      }
      throw ee;
    }
    Runtime.getRuntime().halt(status);
  }
{code}



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