L. Field (CERN)
This paper reports on the deployment experience of the defacto grid information system, Globus MDS, in a large scale production grid. The results of this experience led to the development of an information caching system based on a standard openLDAP database. The paper then describes how this caching system was developed further into a production quality information system including a generic framework for information providers. This includes the deployment and operation experience and the results from performance tests on the information system to assess the scalability limits of it.