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https://issues.apache.org/jira/browse/YARN-8789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17045180#comment-17045180
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Hadoop QA commented on YARN-8789:
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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 9s{color}
| {color:red} YARN-8789 does not apply to trunk. Rebase required? Wrong Branch?
See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | YARN-8789 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12941839/YARN-8789.14.patch |
| Console output |
https://builds.apache.org/job/PreCommit-YARN-Build/25577/console |
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This message was automatically generated.
> Add BoundedQueue to AsyncDispatcher
> -----------------------------------
>
> Key: YARN-8789
> URL: https://issues.apache.org/jira/browse/YARN-8789
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: applications
> Affects Versions: 3.2.0
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Major
> Attachments: YARN-8789.1.patch, YARN-8789.10.patch,
> YARN-8789.12.patch, YARN-8789.14.patch, YARN-8789.2.patch, YARN-8789.3.patch,
> YARN-8789.4.patch, YARN-8789.5.patch, YARN-8789.6.patch, YARN-8789.7.patch,
> YARN-8789.7.patch, YARN-8789.8.patch, YARN-8789.9.patch
>
>
> I recently came across a scenario where an MR ApplicationMaster was failing
> with an OOM exception. It had many thousands of Mappers and thousands of
> Reducers. It was noted that in the logging that the event-queue of
> {{AsyncDispatcher}} had a very large number of item in it and was seemingly
> never decreasing.
> I started looking at the code and thought it could use some clean up,
> simplification, and the ability to specify a bounded queue so that any
> incoming events are throttled until they can be processed. This will protect
> the ApplicationMaster from a flood of events.
> Logging Message:
> Size of event-queue is xxx
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