Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-5535 Umbrella jira for improved HDFS rolling upgrades
  3. HDFS-6031

NN running newer software rejects loading the fsimage during rolling upgrade.

    Details

    • Hadoop Flags:
      Reviewed

      Description

      During rolling upgrade, the standby NN that has a newer layout version will complain about that the fsimage is too old, and require starting the NN using the -upgrade option:

      File system image contains an old layout version -55. An upgrade to version -56 is required.
      

      However, -upgrade is disabled during rolling upgrade, thus it is impossible to restart the standby NN:

      org.apache.hadoop.hdfs.protocol.RollingUpgradeException: Failed to upgrade namenode since a rolling upgrade is already in progress. Existing rolling upgrade info:
      ...
      

        Attachments

        1. h6031_20140227e.patch
          13 kB
          Tsz Wo Nicholas Sze
        2. h6031_20140227d.patch
          13 kB
          Tsz Wo Nicholas Sze
        3. h6031_20140227c.patch
          6 kB
          Tsz Wo Nicholas Sze
        4. h6031_20140227b.patch
          2 kB
          Tsz Wo Nicholas Sze
        5. h6031_20140227.patch
          0.7 kB
          Tsz Wo Nicholas Sze

          Issue Links

            Activity

              People

              • Assignee:
                szetszwo Tsz Wo Nicholas Sze
                Reporter:
                wheat9 Haohui Mai
              • Votes:
                0 Vote for this issue
                Watchers:
                4 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: