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

        Issue Links

        is blocked by

        Bug - A problem which impairs or prevents the functions of the product. HDFS-3853 Port MiniDFSCluster enableManagedDfsDirsRedundancy option to branch-2

        • Minor - Minor loss of function, or other problem where easy workaround is present.
        • Closed
        is related to

        Improvement - An improvement or enhancement to an existing feature or task. HADOOP-8291 jenkins: include support for binary patches

        • Minor - Minor loss of function, or other problem where easy workaround is present.
        • Open
        relates to

        Improvement - An improvement or enhancement to an existing feature or task. HBASE-6586 Quarantine Corrupted HFiles with hbck

        • Major - Major loss of function.
        • Closed

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            kihwal Kihwal Lee Assign to me
            sureshms Suresh Srinivas
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