Hitesh Shah created MAPREDUCE-5142:
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Summary: MR AM unregisters with state KILLED when an error causes
dispatcher to shutdown
Key: MAPREDUCE-5142
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5142
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Hitesh Shah
RMCommunicator sets final state to KILLED if the job is in a running state and
isSignalled is set to true.
{code}
} else if (jobImpl.getInternalState() == JobStateInternal.KILLED
|| (jobImpl.getInternalState() == JobStateInternal.RUNNING &&
isSignalled)) {
finishState = FinalApplicationStatus.KILLED;
} else if (jobImpl.getInternalState() == JobStateInternal.FAILED
|| jobImpl.getInternalState() == JobStateInternal.ERROR) {
finishState = FinalApplicationStatus.FAILED;
{code}
This happens when for some reason, there is an exception in a state machine's
event handler causing AsyncDispatcher to trigger a shutdown. In such a
scenario, even though the AM actually failed due to some error, its actual
state ends up as KILLED.
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