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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6867) ApplicationMaster hung on OOM Error
Date Tue, 20 Mar 2018 04:15:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16405784#comment-16405784
] 

Hadoop QA commented on MAPREDUCE-6867:
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| (x) *{color:red}-1 overall{color}* |
\\
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  0s{color} | {color:blue}
Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  5s{color} | {color:red}
MAPREDUCE-6867 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute
for help. {color} |
\\
\\
|| Subsystem || Report/Notes ||
| JIRA Issue | MAPREDUCE-6867 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12862075/MAPREDUCE-6867.patch
|
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7372/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> 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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