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  1. Hadoop HDFS
  2. HDFS-9667

StorageType: SSD precede over DISK

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.6.0, 2.7.0
    • Fix Version/s: None
    • Component/s: namenode
    • Labels:
      None
    • Target Version/s:
    • Tags:
      heterogeneous storage

      Description

      We enabled the heterogeneous storage in our cluster and there are only ~50% of datanode & regionserver hosts with SSD. We set hfile with ONE_SSD storagepolicy but we found block's all replica are DISK often even local host with SSD storage. The block placement do not choose SSD first to place replica.

        Attachments

        1. HDFS-9667.0.patch
          0.5 kB
          chunde

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              • Assignee:
                aderen chunde
                Reporter:
                aderen chunde
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                Dates

                • Created:
                  Updated:
                  Resolved: