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https://issues.apache.org/jira/browse/HBASE-879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12643659#action_12643659
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Michael Bieniosek commented on HBASE-879:
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HADOOP-3831 is related, but not quite the same. HBase should be able to
survive the block shuffle caused by restarting the dfs entirely. So I suppose
the test for this one should be: restart the dfs, and get the regionservers to
deal with blocks moving to different datanodes.
> When dfs restarts or moves blocks around, hbase regionservers don't notice
> --------------------------------------------------------------------------
>
> Key: HBASE-879
> URL: https://issues.apache.org/jira/browse/HBASE-879
> Project: Hadoop HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.2.0
> Reporter: Michael Bieniosek
>
> Since the hbase regionservers use a DFSClient to keep handles open to the
> dfs, if the dfs blocks move around (typically because of a dfs restart, but
> can also happen if datanodes die or blocks get shuffled around), the
> regionserver will be unable to service the region. It would be nice if the
> DFSClient that the regionservers use could notice this case and refresh the
> block list.
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