Performance comparison of the LCG2 and gLite file catalogues

When the Large Hadron Collider (LHC) begins operation at CERN in 2007 it will produce data in volumes never before seen. Physicists around the world will manage, distribute and analyse petabytes of this data using the middleware provided by the LHC computing grid. One of the critical factors in the smooth running of this system is the performance of the file catalogues which allow users to access their files with a logical filename without knowing their physical location. This paper presents a detailed study comparing the performance and respective merits and shortcomings of two of the main catalogues: the LCG file catalogue and the gLite FiReMan catalogue

[1]  S. Lacaprara,et al.  Distributed computing grid experiences in CMS , 2005, IEEE Transactions on Nuclear Science.

[2]  Flavia Donno,et al.  Distributed computing grid experiences in CMS DC04 , 2005 .

[3]  Birger Koblitz,et al.  Performance comparison of the LCG2 and gLite file catalogues , 2006, IEEE Nuclear Science Symposium Conference Record, 2005.

[4]  Jean-Philippe Baud,et al.  Performance analysis of a file catalog for the LHC computing grid , 2005, HPDC-14. Proceedings. 14th IEEE International Symposium on High Performance Distributed Computing, 2005..