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https://issues.apache.org/jira/browse/YARN-8995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16917507#comment-16917507
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Tao Yang commented on YARN-8995:
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Hi, [~zhuqi]. The latest patch seems not applicable for trunk now, could you
please rebase and update it?
The latest patch has two places need to be updated or confirmed:
1. The prefix of YARN_DISPATCHER_PRINT_EVENTS_INFO_THRESHOLD is "yarn.yarn."
2. Why need this update: LOG.fatal("Error in dispatcher thread", t) -->
LOG.error(FATAL, "Error in dispatcher thread", t) ?
> Log the event type of the too big AsyncDispatcher event queue size, and add
> the information to the metrics.
> ------------------------------------------------------------------------------------------------------------
>
> Key: YARN-8995
> URL: https://issues.apache.org/jira/browse/YARN-8995
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: metrics, nodemanager, resourcemanager
> Affects Versions: 3.2.0, 3.3.0
> Reporter: zhuqi
> Assignee: zhuqi
> Priority: Major
> Fix For: 3.2.0
>
> Attachments: TestStreamPerf.java, YARN-8995.001.patch,
> YARN-8995.002.patch, YARN-8995.003.patch, YARN-8995.004.patch,
> YARN-8995.005.patch, YARN-8995.006.patch, YARN-8995.007.patch,
> YARN-8995.008.patch, YARN-8995.009.patch
>
>
> In our growing cluster，there are unexpected situations that cause some event
> queues to block the performance of the cluster, such as the bug of
> https://issues.apache.org/jira/browse/YARN-5262 . I think it's necessary to
> log the event type of the too big event queue size, and add the information
> to the metrics, and the threshold of queue size is a parametor which can be
> changed.
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