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https://issues.apache.org/jira/browse/YARN-9927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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hcarrot updated YARN-9927:
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Description: Recently, we have observed serious event blocking in RM event
dispatcher queue. After analysis of RM event monitoring data and RM event
processing logic, we found that the proportion of RMNodeStatusEvent is less
than other events, but the overall processing time of it is more than other
events. Meanwhile, RM event processing is in a single-thread mode, and It
results in the decrease of RM's performance. So we proposed a RM multi-thread
event processing mechanism to improve RM performance. (was: Recently, we have
observed serious event blocking in RM event dispatcher queue. After analysis of
RM event monitoring data and RM event processing logic, we found that the
proportion of RMNodeStatusEvent is less than other events, but the overall
processing time of it is more than other events. Meanwhile, RM event processing
is in a single-thread mode, and It results in the decrease of RM's performance.
So we proposed a RM multi-thread event processing mechanism to improve RM
performance. Is this mechanism feasible?)
> RM multi-thread event processing mechanism
> ------------------------------------------
>
> Key: YARN-9927
> URL: https://issues.apache.org/jira/browse/YARN-9927
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: yarn
> Reporter: hcarrot
> Priority: Minor
> Attachments: RM multi-thread event processing mechanism.pdf
>
>
> Recently, we have observed serious event blocking in RM event dispatcher
> queue. After analysis of RM event monitoring data and RM event processing
> logic, we found that the proportion of RMNodeStatusEvent is less than other
> events, but the overall processing time of it is more than other events.
> Meanwhile, RM event processing is in a single-thread mode, and It results in
> the decrease of RM's performance. So we proposed a RM multi-thread event
> processing mechanism to improve RM performance.
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