Package org.apache.hadoop.hdfs.server.blockmanagement

Interface BlockPlacementStatus

All Known Implementing Classes:
BlockPlacementStatusDefault, BlockPlacementStatusWithNodeGroup, BlockPlacementStatusWithUpgradeDomain
@Private @Evolving public interface BlockPlacementStatus

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    getAdditionalReplicasRequired()
    Return the number of additional replicas needed to ensure the block placement policy is satisfied.
    String
    getErrorDescription()
    Get description info for log or printed in case replicas are failed to meet requirement of placement policy
    boolean
    isPlacementPolicySatisfied()
    Boolean value to identify if replicas of this block satisfy requirement of placement policy

  • Method Details

    • isPlacementPolicySatisfied

      boolean isPlacementPolicySatisfied()
      Boolean value to identify if replicas of this block satisfy requirement of placement policy
      Returns:
      if replicas satisfy placement policy's requirement

    • getErrorDescription

      String getErrorDescription()
      Get description info for log or printed in case replicas are failed to meet requirement of placement policy
      Returns:
      description in case replicas are failed to meet requirement of placement policy

    • getAdditionalReplicasRequired

      int getAdditionalReplicasRequired()
      Return the number of additional replicas needed to ensure the block placement policy is satisfied.
      Returns:
      The number of new replicas needed to satisify the placement policy or zero if no extra are needed