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https://issues.apache.org/jira/browse/HDFS-7130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14146214#comment-14146214
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Hudson commented on HDFS-7130:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #690 (See 
[https://builds.apache.org/job/Hadoop-Yarn-trunk/690/])
HDFS-7130. TestDataTransferKeepalive fails intermittently on Windows. 
Contributed by Chris Nauroth. (cnauroth: rev 
b93d9603a25b6b93f67c69503130164eef047876)
* 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDataTransferKeepalive.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


> TestDataTransferKeepalive fails intermittently on Windows.
> ----------------------------------------------------------
>
>                 Key: HDFS-7130
>                 URL: https://issues.apache.org/jira/browse/HDFS-7130
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>             Fix For: 2.6.0
>
>         Attachments: HDFS-7130.1.patch
>
>
> {{TestDataTransferKeepalive}} has failed intermittently on Windows.  These 
> tests rely on a 1 ms thread sleep to wait for a cache expiration.  This is 
> likely too short on Windows, which has been observed to have a less granular 
> clock interrupt period compared to typical Linux machines.



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