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.
BlockPlacementStatusDefault  
BlockStoragePolicySuite A collection of block storage policies.
DatanodeDescriptor.CachedBlocksList A list of CachedBlock objects on this datanode.
DatanodeStorageInfo A Datanode has one or more storages.
NumberReplicas A immutable object that stores the number of live replicas and the number of decommissined Replicas.
 

Enum Summary
CorruptReplicasMap.Reason The corruption reason code
DatanodeDescriptor.CachedBlocksList.Type  
 

Exception Summary
UnresolvedTopologyException This exception is thrown if resolving topology path for a node fails.
 



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