- 
Interface Summary 
| Interface | Description |  
| ReconfigurationProtocolPB | Protocol that clients use to communicate with the NN/DN to do
 reconfiguration on the fly. |  
 
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Class Summary 
| Class | Description |  
| PBHelperClient | Utilities for converting protobuf classes to and from hdfs-client side
 implementation classes and other helper utilities to help in dealing with
 protobuf. |  
| ReconfigurationProtocolUtils | This is a client side utility class that handles
 common logic to to parameter reconfiguration. |  
 
Package org.apache.hadoop.hdfs.protocolPB Description
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