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From "Aaron T. Myers (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3037) TestMulitipleNNDataBlockScanner#testBlockScannerAfterRestart is racy
Date Fri, 02 Mar 2012 01:26:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13220575#comment-13220575
] 

Aaron T. Myers commented on HDFS-3037:
--------------------------------------

Pretty sure the TestHFlush failure is spurious and unrelated to this patch. I suspect it's
due to HDFS-3041. I just ran TestHFlush locally several times with the patch applied and it
passed just fine.

I'm going to commit this momentarily.
                
> TestMulitipleNNDataBlockScanner#testBlockScannerAfterRestart is racy
> --------------------------------------------------------------------
>
>                 Key: HDFS-3037
>                 URL: https://issues.apache.org/jira/browse/HDFS-3037
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.24.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>            Priority: Minor
>         Attachments: HDFS-3037.patch
>
>
> In this test, we restart a DN in a running cluster, call MiniDFS#waitActive, and then
assert some things about the DN. Trouble is, MiniDFSCluster#waitActive won't wait any time
at all, since the DN had previously registered with the NN and the NN never had time to realize
the DN was dead.

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