Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-3438

BootstrapStandby should not require a rollEdits on active node

    Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.0-alpha
    • Fix Version/s: 2.0.2-alpha
    • Component/s: ha
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      Currently, BootstrapStandby uses a rollEdits() call on the active NN in order to determine the most recent checkpoint and transaction ID. However, this means that you cannot bootstrap a standby when the active NN is in safe mode – i.e you have to start the whole cluster before you can bootstrap a new standby. This makes the workflow to convert an existing cluster to HA more complicated. We should allow BootstrapStandby to work even when the NN is in safe mode.

      1. hdfs-3438.txt
        19 kB
        Todd Lipcon

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          • Assignee:
            Todd Lipcon
            Reporter:
            Todd Lipcon
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            Dates

            • Created:
              Updated:
              Resolved:

              Development