[ https://issues.apache.org/jira/browse/MAPREDUCE-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13153835#comment-13153835
]
Steve Loughran commented on MAPREDUCE-3431:
-------------------------------------------
the root cause of this is the service {{stop()}} method assumes the service started up correctly,
and hence that all member fields are non-null. Each field should be assessed for null-ness
before use, and set to null afterwards, to stop re-entrant calls. All yarn services will need
reviewing. Testing is hard as it's tricky to generate all code-paths needed to stress every
action in the {{stop()}} method
> NPE in Resource Manager shutdown
> --------------------------------
>
> Key: MAPREDUCE-3431
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3431
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 0.23.0
> Environment: OS/X w/ java6
> Reporter: Steve Loughran
> Priority: Minor
>
> bringing up a resource manager failed; shutdown triggered an NPE
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
|