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  1. Hadoop HDFS
  2. HDFS-1623 High Availability Framework for HDFS NN
  3. HDFS-1975

HA: Support for sharing the namenode state from active to standby.

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • HA branch (HDFS-1623)
    • ha, namenode
    • None
    • 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 namenode state current in the standby node. To do this, the proposed solution in this jira is to use a shared storage to store the namenode state.

      Note one could also build an alternative solution by augmenting the backup node. A seperate jira could explore this.

      Attachments

        1. hdfs-1975.txt
          14 kB
          Todd Lipcon
        2. hdfs-1975.txt
          14 kB
          Todd Lipcon
        3. HDFS-1975-HA.2.patch
          23 kB
          Jitendra Nath Pandey
        4. HDFS-1975-HA.patch
          14 kB
          Jitendra Nath Pandey
        5. HDFS-1975-HDFS-1623.patch
          76 kB
          Todd Lipcon
        6. HDFS-1975-HDFS-1623.patch
          73 kB
          Todd Lipcon
        7. HDFS-1975-HDFS-1623.patch
          82 kB
          Aaron Myers
        8. HDFS-1975-HDFS-1623.patch
          82 kB
          Aaron Myers

        Issue Links

          relates to

          Sub-task - The sub-task of the issue HDFS-1108 Log newly allocated blocks

          • Major - Major loss of function.
          • Closed

          Activity

            People

              jnp Jitendra Nath Pandey
              sureshms Suresh Srinivas
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              Dates

                Created:
                Updated:
                Resolved: