hcarrot created YARN-9927:
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Summary: 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
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. Is this mechanism feasible?
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