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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5289) Race condition in TestRetryCacheWithHA#testCreateSymlink causes spurious test failure
Date Wed, 02 Oct 2013 22:01:43 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HDFS-5289:
---------------------------------

    Status: Patch Available  (was: Open)

> 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
>         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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