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Posted to hdfs-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2017/07/20 21:35:00 UTC

[jira] [Created] (HDFS-12174) DN commitBlockSynchronization needs delivery guarantee

Daryn Sharp created HDFS-12174:
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             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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