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https://issues.apache.org/jira/browse/MAPREDUCE-6867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16405770#comment-16405770
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Brahma Reddy Battula commented on MAPREDUCE-6867:
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Looks YARN-679 covered this one part of this issue.
bq.{{LOG.fatal("Halt called", ee)}} possibility of one more OOM exception
Yes, as you also mentioned, it's logged only for test.
bq.i think option of {{XX:OnOutOfMemoryError=\"kill -9}} is dependent on the
OS. so not sure its the right approach and not aware any option is there to set
based on OS type. given that we have fix in {{ExitUtil}} is it required to have
this modification too?
{{ExitUtil}} just can through the error, but JVM will not be killed right..?
Maybe we can add based on OS..?
> 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
> Assignee: Bilwa S T
> Priority: Major
> Attachments: MAPREDUCE-6867.patch
>
>
> 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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