[MAPREDUCE-7211] NPE caused by JobHistoryEventHandler#serviceStop

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: applicationmaster
• Assignee: Wanqiang Ji
• Reporter: Wanqiang Ji
• Created: 31/May/19 11:11
• Updated: 31/May/19 11:12

Description

Call stack:

org.apache.hadoop.service.AbstractService: Service JobHistoryEventHandler failed in state STOPPED; cause: java.lang.NullPointerException
 java.lang.NullPointerException
 at org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.handleEvent(JobHistoryEventHandler.java:653)
 at org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.serviceStop(JobHistoryEventHandler.java:443)

I found it caused by:

 2019-05-29 15:02:41,681 INFO [eventHandlingThread] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Failed to write the job configuration file
 java.io.IOException: Unable to close file because the last blockBP-649451382-xxx.xxx.xxx.xxx-1557215524698:blk_1378020038_304562904 does not have enough number of replicas.
 at org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.setupEventWriter(JobHistoryEventHandler.java:561)