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  1. Hadoop HDFS
  2. HDFS-6700

BlockPlacementPolicy shoud choose storage but not datanode for deletion

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.6.0
    • Component/s: namenode
    • Labels:
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    • Hadoop Flags:
      Reviewed

      Description

      HDFS-2832 changed datanode storage model from a single storage, which may correspond to multiple physical storage medias, to a collection of storages with each storage corresponding to a physical storage media.

      BlockPlacementPolicy.chooseReplicaToDelete still chooses replica in term of
      DatanodeDescriptor but not DatanodeStorageInfo.

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