Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-12482

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

    Details

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

          Issue Links

            Activity

              People

              • Assignee:
                eddyxu Lei (Eddy) Xu
                Reporter:
                eddyxu Lei (Eddy) Xu
              • Votes:
                0 Vote for this issue
                Watchers:
                4 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: