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

Interface Summary
DatanodeStatistics Datanode statistics
MutableBlockCollection This interface is used by the block manager to expose a few characteristics of a collection of Block/BlockUnderConstruction.
 

Class Summary
BlockInfoUnderConstruction Represents a block that is currently being constructed.
This is usually the last block of a file opened for write or append.
BlockPlacementPolicyWithNodeGroup The class is responsible for choosing the desired number of targets for placing block replicas on environment with node-group layer.
DatanodeDescriptor.BlockIterator Iterates over the list of blocks belonging to the datanode.
NumberReplicas A immutable object that stores the number of live replicas and the number of decommissined Replicas.
 



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