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  1. Hadoop HDFS
  2. HDFS-9608

Disk IO imbalance in HDFS with heterogeneous storages

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.6.0
    • 2.9.0, 3.0.0-alpha1
    • None
    • None

    Description

      Currently RoundRobinVolumeChoosingPolicy use a shared index to choose volumes in HDFS with heterogeneous storages, this leads to non-RR choosing mode for certain type of storage.
      Besides, it uses a shared lock for synchronization which limits the concurrency of volume choosing process. Volume choosing threads that operating on different storage types should be able to run concurrently.

      Attachments

        1. HDFS-9608.01.patch
          6 kB
          Wei Zhou
        2. HDFS-9608.02.patch
          7 kB
          Wei Zhou
        3. HDFS-9608.03.patch
          5 kB
          Wei Zhou
        4. HDFS-9608.04.patch
          7 kB
          Wei Zhou
        5. HDFS-9608.05.patch
          7 kB
          Wei Zhou
        6. HDFS-9608.06.patch
          10 kB
          Wei Zhou
        7. HDFS-9608.07.patch
          10 kB
          Wei Zhou

        Activity

          People

            zhouwei Wei Zhou
            zhouwei Wei Zhou
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            Dates

              Created:
              Updated:
              Resolved: