Abstract

Monitoring and information services form a key component of any deployed Grid. As testbeds are achieving basic functionality, more and more emphasis is being placed on the discovery of available resources and the monitoring of their status. Current Grid information and monitoring systems are being used in different and more extensive ways than originally planned, and current systems are finding difficulty meeting today’s monitoring challenges.

This talk gives an overview of the design and architecture of the Monitoring and Discovery System (MDS4), the information system portion of the Globus Toolkit 4. As part of the WSRF core, every service can participate as a first class member in this broader MDS by publishing data about itself, so monitoring in this environment has changed dramatically. We discuss what monitoring and discovery looks like in a Grid services world, and what future work is needed to make users happy. We also present preliminary performance results for MDS4