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Simple Distributed Load Balancer Simulation

Introduction

This is a simulations of the implementation of the software Load Balancer that routes TCP network calls to different running instances for our radius calculating server in a multithreaded manner.

Enhancements Coming

  • Round-Robin routing
  • Sticky Round-Robin routing
  • Health Checks

Round-Robin

This algorithm is implemented using a local customized linked-list using the next pointer as a needle that points to the next node server as a client request is being executed. If client requests moves the node to the tail node, the pointer routes back to the head. Would be easier to make it a circular linked-list.

Sticky-Round-Robin

Issues

  • Faults
  • Thread sleeps to avoid collisions
  • Probable unnecessary use of locks

Technologies Used

  • Java
  • Socket and ServerSockets
  • Threads using Runnable interface

Author

Burmau Garba