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| 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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