Research and implement of a grid job manager
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摘要: 随着网格技术以及应用的发展,网格作业的形式越来越呈现出复杂的流程性特征.网格作业的定义、执行和管理需要软件系统的支持,其中作业管理器是支撑软件系统中的核心部件,它负责作业定义的解释执行,并提供运行时的监控管理功能.在借鉴服务组合技术的基础上,提出了一种网格作业描述语言,并设计实现了支持流程性作业的作业管理器.作业管理器由作业管理器入口、会话管理器、实例管理器、作业实例、活动实例以及活动调用管理器等主要部件组成,为网格作业的运行提供了执行引擎.作业管理器具有分层消息处理结构,简化了处理过程的复杂性;支持的3种不同的会话机制,能够满足作业之间以及作业和成员服务之间会话的灵活性要求;基于事件的消息传递机制使得作业管理器更加符合面向对象的设计要求.Abstract: With the development of grid and grid applications, more and more flow jobs have appeared. Definition, execution and management of jobs need the support of software system and the job manager is the core component. The job manager interprets the job definition and provides the monitor function. A job description language is proposed and a job manager is designed based on early work of Web service composition. The job manager is composed of invoker, conversation manager, instance manager, job instance, activity instance and activity invoker. The job manager provides an executing engine for grid jobs. The layered architecture of the job manager simplifies the message processing. Three different conversation mechanisms supported by the job manager satisfy the requirement of the conversation between jobs and between jobs and component services. Event-based message exchange mechanism makes the relation among components of the job manager clearer and meets the requirement of the object-oriented design.
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Key words:
- grid /
- grid job /
- job manager /
- workflow
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