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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.

          Details

          • Type: Sub-task
          • Status: Resolved
          • Priority: Major
          • Resolution: Fixed
          • Affects Version/s: None
          • Fix Version/s: HA branch (HDFS-1623)
          • Component/s: ha, namenode
          • Labels:
            None
          • Hadoop Flags:
            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-HDFS-1623.patch
                76 kB
                Todd Lipcon
              2. HDFS-1975-HDFS-1623.patch
                73 kB
                Todd Lipcon
              3. HDFS-1975-HDFS-1623.patch
                82 kB
                Aaron T. Myers
              4. HDFS-1975-HDFS-1623.patch
                82 kB
                Aaron T. Myers
              5. HDFS-1975-HA.2.patch
                23 kB
                Jitendra Nath Pandey
              6. HDFS-1975-HA.patch
                14 kB
                Jitendra Nath Pandey
              7. hdfs-1975.txt
                14 kB
                Todd Lipcon
              8. hdfs-1975.txt
                14 kB
                Todd Lipcon

                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

                    • Assignee:
                      jnp Jitendra Nath Pandey
                      Reporter:
                      sureshms Suresh Srinivas
                    • Votes:
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                      Watchers:
                      15 Start watching this issue

                      Dates

                      • Created:
                        Updated:
                        Resolved: