Element real time initiative transferring method based on domain model

Abstract

The present invention provides a method for carrying out component migration in a component-based distributed system, belonging to the software component-based technical field. The method comprises the following steps that: 1) nodes of a distributed system are divided into domain nodes and non-domain nodes; the domain nodes manage the global strategy, and the non-domain nodes are responsible for the specific execution on a present node; 2) creating an interaction management protocol between the domain nodes and the non-domain nodes for controlling the migration management; 3) creating multi-point redundancy, failure active discovery and real-time migration algorithm of the component. The component migration method of the present invention has as follows: 1) real-time; the component loading and environment binding time during the migration process is eliminated and the real-time response degree during the migration process is improved through the simplification and optimization of the global information and the component activation queue based on priority; 2) accuracy; the integrity of the information and correctness of the running state of the system are ensured by realizing the function of the backup of 'latency' state of the domain component.

Description

technical field [0001] The invention relates to the technical field of software componentization, in particular to a real-time active component migration method based on a domain model. Background technique [0002] A component is a software entity that can be reused at each stage of the software life cycle. It can be configured and deployed independently, has good encapsulation independence and clearly defined interfaces, and is strictly separated from the running context and other components. Open software systems through component technology can not only effectively improve the developer's efficiency and reduce the developer's cost, but also make the constructed system have good scalability and maintainability. At present, the software development technology based on component technology has been widely concerned by the industry, and has become the mainstream method of software development. [0003] The distributed system developed by component technology is composed of ...

AI Technical Summary

Problems solved by technology

There are two defects in this scheme: one is that the design of the specification is complex and difficult to implement, and there is still a lack of corresponding effective implementation body; the other is that the fault-tolerant entity is aimed at a single component, and it is difficult to apply it to actual system development without starting from the perspective of fault tolerance of the whole system

These methods are based on the migration of the whole process, and the granularity is too large to be applied to componentized systems

[0005] To sum up, although there are a large number of migration fault-tolerant solutions in the industry, they are all based on non-component systems, and there is no mature migration fault-tolerant solution based on component systems.

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