Automated application fail-over for coordinating...

Electrical computers and digital processing systems: support – Reconfiguration

Reexamination Certificate

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Details

C709S221000, C714S006130, C714S047300

Reexamination Certificate

active

06202149

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates in general to computer systems, and more particularly, to an automated application fail-over for coordinating applications with database management system (DBMS) availability.
2. Description of Related Art
Many modern computer systems are in nearly continuous use, and have very little time to be taken “down” or “offline” for database updates or preventative maintenance. Further, computer systems increasingly require systems that virtually never fail and have little or no scheduled downtime. As a concurrent requirement, these same systems demand cost-effective computing solutions, open systems to avoid or reduce specific supplier dependencies, and the ability to leverage the latest hardware and software technologies as they become available.
Modern computer systems also have transitioned from a static installation to a dynamic system that regularly changes. The system continually contains new collections of products and applications that are processing requests from a constantly changing user base. The ability of computing solutions to provide service availability in a dynamic environment is becoming increasingly important, because the pace of change in products and customers' environments is expected to increase. The term “change tolerance” has been used to describe the ability of a computing system to adapt to the dynamic environment required.
It can be seen, then, that there is a need in the art for a system that provides a high confidence level for continuous processing. It can also be seen, then, that there is a need in the art for a system with a high change tolerance. It can also be seen, then, that there is a need in the art for a system with reasonable development costs and implementation schedules that does not sacrifice the benefits of open systems.
SUMMARY OF THE INVENTION
To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present specification, the present invention discloses a method and apparatus for automatically reconfiguring a computer network when a triggering event occurs.
The apparatus comprises at least one redundancy group comprised of one or more computing systems, comprised of one or more computing system partitions. The computing system partition includes copies of a database schema that are replicated at each computing system partition. The redundancy group monitors the status of the computing systems and the computing system partitions, and assigns a task to the computing systems based on the monitored status of the computing systems.
These and various other advantages and features of novelty which characterize the invention are pointed out with particularity in the claims annexed hereto and form a part hereof. However, for a better understanding of the invention, its advantages, and the objects obtained by its use, reference should be made to the drawings which form a further part hereof, and to the accompanying detailed description, in which there is illustrated and described specific examples in accordance with the invention.


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