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https://issues.apache.org/jira/browse/MAPREDUCE-5723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13872967#comment-13872967
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Mohammad Kamrul Islam commented on MAPREDUCE-5723:
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Thanks [~kkambatl] for your proposal. I will put a patch based on that.
In the mean time, do you have any idea why the test case is failing? If I run
it myself w/o any code changes the test case still fails.
> MR AM container log empty if exception occurs
> ---------------------------------------------
>
> Key: MAPREDUCE-5723
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5723
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: applicationmaster
> Affects Versions: 2.2.0
> Reporter: Mohammad Kamrul Islam
> Assignee: Mohammad Kamrul Islam
> Fix For: trunk, 2.2.0
>
> Attachments: MAPREDUCE-5723.1.patch, MAPREDUCE-5723.2.patch
>
>
> It occurs when the property "mapreduce.task.userlog.limit.kb" is set non-zero
> in mapped-site.xml.
> AM container syslog remains empty if any exception occurs.
> Bug details:
> In MRAppMaster.java, the following code snippets show the bug.
> {code}
> } catch (Throwable t) {
> LOG.fatal("Error starting MRAppMaster", t);
> System.exit(1);
> }finally {
> LogManager.shutdown();
> }
> {code}
> In the catch block, we are exiting the JVM. So finally block (therefore
> LogManager.shutdown()) is never executed.
> Possible fix:
> Make sure LogManager.shutdown() is executed in all cases.
>
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