Fault-Tolerance through Message-logging and Check-pointing: Disaster Recovery for CORBA-based Distributed Bank Servers

TL;DR

This paper develops a fault-tolerant distributed bank server system using message logging and checkpointing, enabling recovery from failures in a CORBA-based environment.

Contribution

It introduces a comprehensive failure-recovery system with message logging, checkpointing, and monitoring for CORBA-based distributed banking servers.

Findings

Effective recovery from server crashes demonstrated

Reduced downtime through monitoring and restart mechanisms

Reliable transaction processing despite failures

Abstract

This report presents results of our endeavor towards developing a failure-recovery variant of a CORBA-based bank server that provides fault tolerance features through message logging and checkpoint logging. In this group of projects, three components were developed to satisfy the requirements: 1) a message-logging protocol for the branch servers of the distributed banking system to log required information; 2) a recovery module that restarts the bank server using the message log to help the restarted bank server process subsequent requests for various operations; 3) a monitor module that periodically checks whether the bank server is down and helps the recovery module restart the bank server if the latter has crashed.