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From "Andy Isaacson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3664) BlockManager race when stopping active services
Date Tue, 21 Aug 2012 23:44:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439159#comment-13439159
] 

Andy Isaacson commented on HDFS-3664:
-------------------------------------

bq. May be a dupe of HDFS-3048.

We've merged that patch and are still seeing this NPE (for example HDFS-3822), so it's not
a dupe.

                
> 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
>            Reporter: Eli Collins
>
> 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).

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