| Package | Description | 
|---|---|
| org.apache.hadoop.fs | 
 Implementations of  
AbstractFileSystem for hdfs
    over rpc and hdfs over web. | 
| org.apache.hadoop.hdfs.client | 
 This package provides the administrative APIs for HDFS. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
FSDataInputStream
Utility that wraps a  
FSInputStream in a DataInputStream
 and buffers input through a BufferedInputStream. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
HdfsDataInputStream
The Hdfs implementation of  
FSDataInputStream. | 
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