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  1. Hadoop HDFS
  2. HDFS-3399 BookKeeper option support for NN HA
  3. HDFS-3752

BOOTSTRAPSTANDBY for new Standby node will not work just after saveNameSpace at ANN in case of BKJM

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 2.0.0-alpha
    • Fix Version/s: None
    • Component/s: ha
    • Labels:
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      Description

      1. do saveNameSpace in ANN node by entering into safemode
      2. in another new node, install standby NN and do BOOTSTRAPSTANDBY
      3. Now StandBy NN will not able to copy the fsimage_txid from ANN

      This is because, SNN not able to find the next txid (txid+1) in shared storage.
      Just after saveNameSpace shared storage will have the new logsegment with only START_LOG_SEGEMENT edits op.
      and BookKeeper will not be able to read last entry from inprogress ledger.

        Attachments

        1. HDFS-3752-testcase.patch
          6 kB
          Rakesh R

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              • Assignee:
                rakeshr Rakesh R
                Reporter:
                vinayakumarb Vinayakumar B
              • Votes:
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                Dates

                • Created:
                  Updated:
                  Resolved: