A framework for job management in the NorduGrid ARC middleware

This paper presents a framework for managing jobs in the NorduGrid ARC middleware. The system introduces a layer between the user and the grid, and acts as a proxy for the user. Jobs are continuously monitored and the system reacts to changes in their status, by invoking plug-ins to handle a certain job status. Unlike other job management systems, our is run on the client side, under the control of the user. This eliminates the need for the user to share a proxy credential, which is needed to control jobs. Furthermore the system can be extended by the user, as it is designed as a framework. This gives the users the possibility to adapt and extend it, to their needs