[
https://issues.apache.org/jira/browse/HDFS-3664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453590#comment-13453590
]
Colin Patrick McCabe commented on HDFS-3664:
--------------------------------------------
bq. Not your change but in BlockManager we should check datanodeManager and
blocksMap for null like we do pendingReplications right?
Hmm. All of those fields are declared {{final}} and unconditionally
initialized to something non-null in the constructor, so I don't think there
should be any null checks in the {{close}} function. I'll post a patch in a
sec.
> BlockManager race when stopping active services
> -----------------------------------------------
>
> Key: HDFS-3664
> URL: https://issues.apache.org/jira/browse/HDFS-3664
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 2.0.0-alpha
> Reporter: Eli Collins
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-3664.001.patch, HDFS-3664.002.patch
>
>
> Looks like there's a race hit by the test where we try to do block management
> while shutting down (eg allocate a block or compute replication work after
> BlocksMap#close, resulting in an NPE).
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
