One of the important aspects of understanding HDFS is taking a look at how different components interact with each other programmatically and which type of network protocols or method invocations they use. All communication between HDFS components happens over the TCP/IP protocol. Different protocol wrappers are defined for different types of communication. The following diagram represents such protocol wrappers, which we will look into in this section:
The preceding diagram can be explained as follows:
- Client Protocol: This is a communication protocol that's defined for communication between the HDFS Client ...
