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  1. Hadoop HDFS
  2. HDFS-12482

Provide a configuration to adjust the weight of EC recovery tasks to adjust the speed of recovery

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    • Target Version/s:

      Description

      The relative speed of EC recovery comparing to 3x replica recovery is a function of (EC codec, number of sources, NIC speed, and CPU speed, and etc).

      Currently the EC recovery has a fixed xmitsInProgress of max(# of sources, # of targets) comparing to 1 for 3x replica recovery, and NN uses xmitsInProgress to decide how much recovery tasks to schedule to the DataNode this we can add a coefficient for user to tune the weight of EC recovery tasks.

        Attachments

        1. HDFS-12482.00.patch
          9 kB
          Lei (Eddy) Xu
        2. HDFS-12482.01.patch
          11 kB
          Lei (Eddy) Xu
        3. HDFS-12482.02.patch
          12 kB
          Lei (Eddy) Xu
        4. HDFS-12482.03.patch
          12 kB
          Lei (Eddy) Xu
        5. HDFS-12482.04.patch
          12 kB
          Lei (Eddy) Xu
        6. HDFS-12482.05.patch
          12 kB
          Lei (Eddy) Xu

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            • Assignee:
              eddyxu Lei (Eddy) Xu Assign to me
              Reporter:
              eddyxu Lei (Eddy) Xu

              Dates

              • Created:
                Updated:
                Resolved:

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