FAULT TOLERANCE FOR TASKS USING STAGES TO MANAGE DEPENDENCIES

摘要

A high availability system has an application server communicatively coupled to one or more client machines through a network utilizing stateless communication sessions. The application server manages concurrent execution of tasks on multiple client machines. A task may be dependent on the execution of another task and the dependencies are managed through stages. The application server utilizes a fault tolerance methodology to determine a failure to any one of the components within the system and to perform remedial measures to preserve the integrity of the system.