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  1. Hadoop HDFS
  2. HDFS-4213

When the client calls hsync, allows the client to update the file length in the NameNode

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.0.3-alpha
    • Component/s: hdfs-client, namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      As per discussion in HDFS-3960 and HDFS-2802, when clients that need strong consistency update the file length at the NameNode, a special sync/flush is required for getting the length of the being written files when snapshots are taken for these files. This jira implements this sync-with-updating-length by 1) calling ClientProtocol#fsync(), and 2) adding a new field to ClientProtocol#fsync() to indicate the length information.

        Attachments

        1. HDFS-4213.008.patch
          23 kB
          Jing Zhao
        2. HDFS-4213.007.patch
          23 kB
          Jing Zhao
        3. HDFS-4213.006.patch
          25 kB
          Jing Zhao
        4. HDFS-4213.005.patch
          25 kB
          Jing Zhao
        5. HDFS-4213.004.patch
          26 kB
          Jing Zhao
        6. HDFS-4213.003.patch
          23 kB
          Jing Zhao
        7. HDFS-4213.002.patch
          38 kB
          Jing Zhao
        8. HDFS-4213.001.patch
          37 kB
          Jing Zhao

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              • Assignee:
                jingzhao Jing Zhao
                Reporter:
                jingzhao Jing Zhao
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                Dates

                • Created:
                  Updated:
                  Resolved: