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  1. Hadoop HDFS
  2. HDFS-3731

2.0 release upgrade must handle blocks being written from 1.0

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Details

    • Bug
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • 2.0.0-alpha
    • 0.23.4, 2.0.2-alpha
    • datanode
    • None

    Description

      Release 2.0 upgrades must handle blocks being written to (bbw) files from 1.0 release. Problem reported by @brahmareddy
      The DataNode will only have one block pool after upgrading from a 1.x release. (This is because in the 1.x releases, there were no block pools-- or equivalently, everything was in the same block pool). During the upgrade, we should hardlink the block files from the blocksBeingWritten directory into the rbw directory of this block pool. Similarly, on -finalize, we should delete the blocksBeingWritten directory.

      Attachments

        1. hdfs-3731.branch-023.patch.txt
          23 kB
          Kihwal Lee
        2. hadoop1-bbw.tgz
          39 kB
          Colin McCabe
        3. HDFS-3731.003.patch
          21 kB
          Colin McCabe
        4. HDFS-3731.002.patch
          21 kB
          Colin McCabe

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            kihwal Kihwal Lee
            sureshms Suresh Srinivas
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              Updated:
              Resolved:

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