Distributed Key-Value Proxy (TCP/UDP) — Java

A small distributed key-value system implemented in Java. Includes TCP/UDP clients and servers, plus a Proxy that discovers nodes and forwards requests to the correct node.

Components

• TCPServer / UDPServer: serves a single key-value pair (configured via CLI arguments)
• TCPClient / UDPClient: sends commands to a server/proxy
• Proxy: discovers available nodes using GET NAMES and forwards requests over TCP or UDP

Supported Commands

• GET NAMES
• GET VALUE
• SET
• QUIT

Compile

From the project root: javac *.java

How to Run (example)

Start one or more servers (each with its own key), then start the Proxy, then query via client.

Start TCP server: java TCPServer -port -key -value

Start UDP server: java UDPServer -port -key -value

Start Proxy: java Proxy -port <LOCAL_PORT> -server [-server ...]

Client examples: java TCPClient -address -port -command GET NAMES java TCPClient -address -port -command GET VALUE java TCPClient -address -port -command SET