Distribution system presentation of chapter 4(distributed systems concepts and design)
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The document outlines the process of interprocess communication (IPC) using UDP and TCP sockets, detailing how messages are sent and received between client and server processes. It explains concepts like nonblocking receive, synchronous send, and acknowledges that a transparent mechanism is provided by the IPC facility. Additionally, the document includes instructions for handling socket connections, message conversion, and managing input/output streams in Java.
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![Close the socket
args[0] is a message
args[1] is s DNS name of the server
How to receive
a message
How to send
a message
Message converted in array of bytes
IP address of the host](https://image.slidesharecdn.com/distributionsystempresentationofchapter4distributedsystems-conceptsanddesign-171109060316-181013085522/85/Distribution-system-presentation-of-chapter-4-distributed-systems-concepts-and-design-22-320.jpg)
Distribution system presentation of chapter 4(distributed systems concepts and design)
- 3. Socket
- 4. UDP : Sending process TCP : producer Client UDP : Receiver process TCP : Consumer Server
- 9. Process 1 Process 2 nonblocking receive issued execution flow suspended period Synchronous Send and Asynchronous Receive blocking send issued Scenario A transparent acknowledgement provided by the IPC facility
- 10. Process A Process B interprocess communication execution flow process blocked Event diagram for a protocol request 1 response 1 response2 request 2 time
- 22. Close the socket args[0] is a message args[1] is s DNS name of the server How to receive a message How to send a message Message converted in array of bytes IP address of the host
- 23. Socket bound to the server port 6789 Receive the msg Sends back the same message to client Close the socket
- 30. Socket bound to hostname and server port 7896 Input & output streams Close the socket Send message & wait for reply (write to out put stream & read fr om input stream
- 31. // java code continues on the next slide Server socket on port 7896 Server listens for Connect requests When a connect request arrives, server makes a new thread in which to communicate with the client
- 32. Thread waits to read a msg and writes it back Close the socket Socket’s input and output streams