Li Lu created YARN-4460:
---------------------------
Summary: [Bug fix] RM fails to start when SMP is enabled
Key: YARN-4460
URL: https://issues.apache.org/jira/browse/YARN-4460
Project: Hadoop YARN
Issue Type: Sub-task
Affects Versions: YARN-2928
Reporter: Li Lu
Assignee: Li Lu
When SMP is enabled, the RM starts with the following fatal message:
{code}
FATAL event.AsyncDispatcher (AsyncDispatcher.java:dispatch(189)) - Error in
dispatcher thread true
java.lang.Exception: No handler for registered for class
org.apache.hadoop.yarn.server.resourcemanager.metrics.AbstractSystemMetricsPubli
sher$SystemMetricsEventType
at
org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:185)
at
org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:109)
at java.lang.Thread.run(Thread.java:745)
{code}
We should register event handlers in service init stage in
TimelineServiceV2Publisher to fix this problem.
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