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  1. Hadoop HDFS
  2. HDFS-5535 Umbrella jira for improved HDFS rolling upgrades
  3. HDFS-6000

Avoid saving namespace when starting rolling upgrade

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: datanode, ha, hdfs-client, namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Currently when administrator sends the "rollingUpgrade start" command to the active NN, the NN will trigger a checkpoint (the rollback fsimage). This will cause NN not able to serve for a period of time.

      An alternative way is just to let the SBN do checkpoint, and rename the first checkpoint after starting the rolling upgrade to rollback image. After the rollback image is on both the ANN and the SBN, administrator can start upgrading the software.

        Attachments

        1. HDFS-6000.000.patch
          30 kB
          Jing Zhao
        2. HDFS-6000.001.patch
          55 kB
          Jing Zhao
        3. HDFS-6000.002.patch
          55 kB
          Jing Zhao
        4. HDFS-6000.003.patch
          55 kB
          Jing Zhao

          Activity

            People

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

              • Created:
                Updated:
                Resolved: