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Posted to hdfs-dev@hadoop.apache.org by "Colin Patrick McCabe (JIRA)" <ji...@apache.org> on 2013/11/21 04:35:35 UTC

[jira] [Created] (HDFS-5543) fix narrow race condition in TestPathBasedCacheRequests

Colin Patrick McCabe created HDFS-5543:
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             Summary: fix narrow race condition in TestPathBasedCacheRequests
                 Key: HDFS-5543
                 URL: https://issues.apache.org/jira/browse/HDFS-5543
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: test
    Affects Versions: 3.0.0
            Reporter: Colin Patrick McCabe
            Assignee: Colin Patrick McCabe


TestPathBasedCacheRequests has a narrow race condition in testWaitForCachedReplicasInDirectory where an assert checking the number of bytes cached may fail.  The reason is because waitForCachedBlock looks at the NameNode data structures directly to see how many replicas are cached, but the scanner asynchronously updates the cache entries with this information.



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