RPC messages

There are two types of messages involved in the implementation of an RPC system, which are as follows :
Call Message – This message is sent by the client to the server for requesting execution of a particular remote procedure. The two basic components necessary in a call message are as follows :
·         The arguments necessary for the execution of the procedure.
·         The identification information of remote procedure to be executed.
In addition to this, a call message normally has following fields :
·         A message type field – to distinguish call messages from reply messages.
·         A client identification field – to permit server to check the authentication of client process for executing the concerned procedure.
·         A message identification field – consists of sequence numbers to identify duplicates.

                                  RPC Call Message Format
Reply Message – If the RPC server receives a call message from client,it could be faced with one of the following conditions.
·         The specified remote procedure is executed successfully.
·         An exception condition occurs while executing the specified remote procedure.
·         The server finds that the call message is not intelligible to it.
·         The server detects by scanning the clients identifier field that the client is not authorized to use the service.
·        The server finds that the remote program, version or procedure number is not available with it.

                         “A Successful Reply Message Format ”

                        “A Unsuccessful Reply Message Format”

More topics from Distributed System to read:


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JAVA Programs
Principles of Programming Languages ↓ 👆
Principles of Programming Languages
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Previous years solved papers:
A list of Video lectures References:
  1. Sebesta,”Concept of programming Language”, Pearson Edu 
  2. Louden, “Programming Languages: Principles & Practices” , Cengage Learning 
  3. Tucker, “Programming Languages: Principles and paradigms “, Tata McGraw –Hill. 
  4. E Horowitz, "Programming Languages", 2nd Edition, Addison Wesley

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    Computer Organization and Architecture 

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    1. Structure of desktop computers
    2. Logic gates
    3. Register organization
    4. Bus structure
    5. Addressing modes
    6. Register transfer language
    7. Direct mapping numericals
    8. Register in Assembly Language Programming
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    1. William stalling ,“Computer Architecture and Organization” PHI
    2. Morris Mano , “Computer System Organization ”PHI

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    Computer Network

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    1. Data Link Layer
    2. Framing
    3. Byte count framing method
    4. Flag bytes with byte stuffing framing method
    5. Flag bits with bit stuffing framing method
    6. Physical layer coding violations framing method
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    1. Andrew S. Tanenbaum, David J. Wetherall, “Computer Networks” Pearson Education.
    2. Douglas E Comer, “Internetworking with TCP/IP Principles, Protocols, And Architecture",Pearson Education
    3. KavehPahlavan, Prashant Krishnamurthy, “Networking Fundamentals”, Wiley Publication.
    4. Ying-Dar Lin, Ren-Hung Hwang, Fred Baker, “Computer Networks: An Open Source Approach”, McGraw Hill.