[YARN-9185] TimelineServiceV2Publisher throws NPE when app is finished before container metrics updated

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Assignee: Zac Zhou
• Reporter: Zac Zhou
• Created: 08/Jan/19 12:43
• Updated: 09/Jan/19 04:30
• Resolved: 08/Jan/19 16:09

Description

When the dominant component feature is enabled. Resourcemanager throws NPE after the app is finished.

The stack is as follows:

2019-01-08 19:54:48,788 FATAL org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher thread
java.lang.NullPointerException
at org.apache.hadoop.yarn.server.resourcemanager.metrics.TimelineServiceV2Publisher.putEntity(Timel
ineServiceV2Publisher.java:459)
at org.apache.hadoop.yarn.server.resourcemanager.metrics.TimelineServiceV2Publisher.access$100(Time
lineServiceV2Publisher.java:73)
at org.apache.hadoop.yarn.server.resourcemanager.metrics.TimelineServiceV2Publisher$TimelineV2Event
Handler.handle(TimelineServiceV2Publisher.java:494)
at org.apache.hadoop.yarn.server.resourcemanager.metrics.TimelineServiceV2Publisher$TimelineV2Event
Handler.handle(TimelineServiceV2Publisher.java:483)
at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:197)
at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:126)
at java.lang.Thread.run(Thread.java:745)

Issue Links

• depends upon: YARN-6695 Race condition in RM for publishing container events vs appFinished events causes NPE