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  1. Hadoop Common
  2. HADOOP-842

change the open method in ClientProtocol to take an additional argument: clientMachine

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.9.2
    • 0.11.0
    • None
    • None

    Description

      The open method returns a list of blocks that belong to a file and, for each block, a list of datanodes that contain the block.To improve reading efficiency, I'd like to return the list of datanodes in the order of its distance to the client machine. So I suggest that we make the open method to take an additional argument clientMachine which is in the format of hostname:port#.

      Attachments

        1. open.patch
          11 kB
          Hairong Kuang
        2. open1.patch
          11 kB
          Hairong Kuang

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            hairong Hairong Kuang
            hairong Hairong Kuang
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              Updated:
              Resolved:

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