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  1. HBase
  2. HBASE-2975

DFSClient names in master and RS should be unique

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 0.90.0
    • 0.90.0
    • master, regionserver
    • None
    • Reviewed

    Description

      In the post-newmaster trunk, there's some code which gives the regionserver and masters fancy names based on hostname and port. This breaks log recovery, though, if the master starts recovering a log (ie has an append lease on a log file), then crashes and comes back on the same port. The NN doesn't see this as a new client, since the client name is the same, so it thinks it still holds a lease on the file. The new master, though, can't call append() because the NN thinks it's appending, so it loops forever.

      Attachments

        1. hbase-2975.txt
          2 kB
          Todd Lipcon

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            tlipcon Todd Lipcon
            tlipcon Todd Lipcon
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            Dates

              Created:
              Updated:
              Resolved: