[jira] [Created] (HDFS-5289) Race condition in TestRetryCacheWithHA#testCreateSymlink causes spurious test failure

["Aaron T. Myers (JIRA)" <ji...@apache.org>]

Aaron T. Myers created HDFS-5289:
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             Summary: 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


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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