Element real time initiative transferring method based on domain model

A domain model and component technology, applied in the field of real-time active migration of components based on the domain model, can solve the problems of complex specification design, systems that cannot be applied to componentization, and large granularity, so as to improve real-time response and eliminate environment binding time , to ensure the integrity of the effect

Inactive Publication Date: 2008-08-27
NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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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

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  • Element real time initiative transferring method based on domain model
  • Element real time initiative transferring method based on domain model
  • Element real time initiative transferring method based on domain model

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described further:

[0024] (1) Description of the domain model. as attached figure 1 As shown, all nodes in the system are divided into primary domain nodes and backup domain nodes. The primary domain nodes are composed of ORB core and domain management services, and the backup domain nodes are composed of ORB cores, component containers and node management services. The ORB core implements the ORB interaction protocol of the CORBA specification, which is the basic mechanism for component method call communication; the component container establishes the context environment for component running, and the component is loaded by the container and bound by ORB to run in the process of the container. The container controls Component life cycle; the node management service runs on the backup domain node, which manages the component life cycle through the container, reports the c...

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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 ...

Claims

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Application Information

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IPC IPC(8): G06F9/44
Inventor 陈靖赵恒黄志刚曹万华谌菲薛峰陆炜
Owner NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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