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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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