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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-12174) DN commitBlockSynchronization needs delivery guarantee
Date Thu, 20 Jul 2017 21:35:00 GMT
Daryn Sharp created HDFS-12174:
----------------------------------

             Summary: DN commitBlockSynchronization needs delivery guarantee
                 Key: HDFS-12174
                 URL: https://issues.apache.org/jira/browse/HDFS-12174
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode
    Affects Versions: 2.0.0-alpha
            Reporter: Daryn Sharp


The DN's attempt to send a successful commit block synchronization to the NN is fire and forget.
 There are no retries.  The file will linger open until the hard lease timeout.  Ideally this
would be a queued item for guaranteed delivery similar to IBRs.



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