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https://issues.apache.org/jira/browse/HDFS-5983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13964568#comment-13964568
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Ming Ma commented on HDFS-5983:
-------------------------------

Thanks, folks. It seems Arpit Agarwal has just fixed 
https://issues.apache.org/jira/browse/HDFS-6160 in a different way.

> TestSafeMode#testInitializeReplQueuesEarly fails
> ------------------------------------------------
>
>                 Key: HDFS-5983
>                 URL: https://issues.apache.org/jira/browse/HDFS-5983
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.2.0
>            Reporter: Kihwal Lee
>            Assignee: Ming Ma
>         Attachments: HDFS-5983-updated.patch, HDFS-5983.patch, testlog.txt
>
>
> It was seen from one of the precommit build of HDFS-5962.  The test case 
> creates 15 blocks and then shuts down all datanodes. Then the namenode is 
> restarted with a low safe block threshold and one datanode is restarted. The 
> idea is that the initial block report from the restarted datanode will make 
> the namenode leave the safemode and initialize the replication queues.
> According to the log, the datanode reported 3 blocks, but slightly before 
> that the namenode did repl queue init with 1 block.  I will attach the log.



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