| Interface | Description |
|---|---|
| DatanodeStatistics |
Datanode statistics
|
| Class | Description |
|---|---|
| BlockIdManager |
BlockIdManager allocates the generation stamps and the block ID.
|
| BlockInfoContiguousUnderConstruction |
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 | Description |
|---|---|
| CorruptReplicasMap.Reason |
The corruption reason code
|
| DatanodeDescriptor.CachedBlocksList.Type |
| Exception | Description |
|---|---|
| UnresolvedTopologyException |
This exception is thrown if resolving topology path
for a node fails.
|
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