[YARN-4460] [Bug fix] RM fails to start when SMP is enabled

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: YARN-2928
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: timelineserver
• Target Version/s: YARN-2928
• Hadoop Flags: Reviewed
• Assignee: Li Lu
• Reporter: Li Lu
• Created: 15/Dec/15 19:07
• Updated: 21/Oct/17 06:05
• Resolved: 16/Dec/15 10:10

Description

When SMP is enabled, the RM starts with the following fatal message:

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)

We should register event handlers in service init stage in TimelineServiceV2Publisher to fix this problem.

Issue Links

• is broken by: YARN-4129 Refactor the SystemMetricPublisher in RM to better support newer events