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  1. Hadoop Common
  2. HADOOP-396

Writable DatanodeID

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.4.0
    • 0.5.0
    • None
    • None

    Description

      This patch implements Owen's comments to HADOOP-321. Namely,

      • Namenode.sendHeartbeat does not create a throwaway DatanodeDescriptor. DatanodeID is sufficient in this case.
      • DatanodeID is made Writable, and it also implements equals() and hashCode().
      • DatanodeInfo is updated to call base class methods in its implementation of Writable interface.
      • I changed the way strings are written/read using UTF8.writeString and UTF8.readString.
      • Some comments are updated.

      Attachments

        1. DatanodeID.patch
          5 kB
          Konstantin Shvachko
        2. DatanodeID2.patch
          20 kB
          Konstantin Shvachko
        3. DatanodeID3.patch
          21 kB
          Konstantin Shvachko

        Issue Links

          incorporates

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-395 infoPort field should be a DatanodeID member

          • Major - Major loss of function.
          • Closed

          Activity

            People

              shv Konstantin Shvachko
              shv Konstantin Shvachko
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              Dates

                Created:
                Updated:
                Resolved: