| Interface | Description |
|---|---|
| DatanodeStatistics |
Datanode statistics
|
| MutableBlockCollection |
This interface is used by the block manager to expose a
few characteristics of a collection of Block/BlockUnderConstruction.
|
| Class | Description |
|---|---|
| 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 | |
| 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 | Description |
|---|---|
| CorruptReplicasMap.Reason |
The corruption reason code
|
| DatanodeDescriptor.CachedBlocksList.Type |
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