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https://issues.apache.org/jira/browse/HDFS-5289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13785213#comment-13785213
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Hudson commented on HDFS-5289:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1567 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1567/])
HDFS-5289. Race condition in TestRetryCacheWithHA#testCreateSymlink causes
spurious test failure. Contributed by Aaron T. Myers. (atm:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1528693)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestRetryCacheWithHA.java
> Race condition in TestRetryCacheWithHA#testCreateSymlink causes spurious test
> failure
> -------------------------------------------------------------------------------------
>
> Key: HDFS-5289
> URL: https://issues.apache.org/jira/browse/HDFS-5289
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 2.1.1-beta
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Fix For: 2.1.2-beta
>
> Attachments: HDFS-5289.patch
>
>
> The code to check if the operation has been completed on the active NN can
> potentially execute before the thread actually doing the operation has run.
> In this case the checking code will retry the check if the result of the
> check is null. However, the test operation does not in fact return null,
> instead throwing an exception if the file doesn't exist yet. We need to catch
> the exception and retry.
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