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  1. Hadoop HDFS
  2. HDFS-1457

Limit transmission rate when transfering image between primary and secondary NNs

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.22.0
    • Fix Version/s: 0.22.0
    • Component/s: namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Release Note:
      Add a configuration variable dfs.image.transfer.bandwidthPerSec to allow the user to specify the amount of bandwidth for transferring image and edits. Its default value is 0 indicating no throttling.

      Description

      If the fsimage is very big. The network is full in a short time when SeconaryNamenode do checkpoint, leading to Jobtracker access Namenode to get relevant file data to fail in job initialization phase. So we limit transmission speed and compress transmission to resolve the problem.

        Attachments

        1. checkpoint-limitandcompress.patch
          13 kB
          Yilei Lu
        2. trunkThrottleImage.patch
          19 kB
          Hairong Kuang
        3. trunkThrottleImage1.patch
          20 kB
          Hairong Kuang
        4. trunkThrottleImage2.patch
          19 kB
          Hairong Kuang

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              • Assignee:
                hairong Hairong Kuang
                Reporter:
                hairong Hairong Kuang
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                Dates

                • Created:
                  Updated:
                  Resolved: