No. 98 (00221)

Family name : Wu
Given name : Yujun
Affiliation : Fermi National Accelerator Laboratory
Abbreviation : Fermilab
E-mail address : yujun@fnal.gov

Title : Configuration Monitoring Tool for Large-scale Distributed Computing

Authors : Y. Wu, G. Graham, X. Lu, A. Afaq, B. J. Kim and I. Fisk

Abstract : 
The CMS (Compact Muon Solenoid) experiment at the Large Hadron
Collider(LHC) at CERN will use a grid system to achieve much of its
offline processing needs. Given the heterogeneous and dynamic nature of
grid systems, it is desirable to have in place a configuration monitor.
The configuration monitoring tool is built using the Globus toolkit and
web services. It consists of an information provider for the Globus MDS,
a relational database for keeping track of the current and old
configurations, and client interfaces to query and administrate the
configuration system. The Grid Security Infrastructure (GSI), together
with the EDG Java Security packages, are used for secure authenticat ion
and transparent access to the configuration information across the CMS
grid.  This work has been prototyped and tested using US-CMS grid
resources.