| Package | Description | 
|---|---|
| org.apache.hadoop.hdfs.server.namenode | |
| org.apache.hadoop.hdfs.server.namenode.snapshot | |
| org.apache.hadoop.hdfs.util | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | org.apache.hadoop.hdfs.server.namenode.INodeWe keep an in-memory representation of the file/block hierarchy. | 
| class  | INodeDirectoryDirectory INode class. | 
| class  | INodeReferenceAn anonymous reference to an inode. | 
| static class  | INodeReference.DstReference | 
| static class  | INodeReference.WithCountAn anonymous reference with reference count. | 
| static class  | INodeReference.WithNameA reference with a fixed name. | 
| class  | org.apache.hadoop.hdfs.server.namenode.INodeWithAdditionalFieldsINodewith additional fields including id, name, permission,
 access time and modification time. | 
| Modifier and Type | Class and Description | 
|---|---|
| static class  | Snapshot.RootThe root directory of the snapshot. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | Diff<K,E extends Diff.Element<K>>The difference between the current state and a previous state of a list. | 
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