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  1. Hadoop HDFS
  2. HDFS-1623 High Availability Framework for HDFS NN
  3. HDFS-1971

HA: Send block report from datanode to both active and standby namenodes

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    • Reviewed

    Description

      To enable hot standby namenode, the standby node must have current information for - namenode state (image + edits) and block location information. This jira addresses keeping the block location information current in the standby node. To do this, the proposed solution is to send block reports from the datanodes to both the active and the standby namenode.

      Attachments

        1. daulBr1.patch
          1.28 MB
          Sanjay Radia
        2. DualBlockReports.pdf
          151 kB
          Sanjay Radia
        3. dualBr2.patch
          12 kB
          Sanjay Radia
        4. dualBr3.patch
          62 kB
          Sanjay Radia
        5. dualbr4.txt
          85 kB
          Todd Lipcon
        6. dualbr5.txt
          85 kB
          Todd Lipcon
        7. dualBr6.patch
          85 kB
          Sanjay Radia

        Issue Links

          is duplicated by

          Sub-task - The sub-task of the issue HDFS-2166 Datanodes should send block reports to both Active and Standby Namenodes.

          • Major - Major loss of function.
          • Resolved

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              sanjay.radia Sanjay Radia
              sureshms Suresh Srinivas
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                Created:
                Updated:
                Resolved: