Speaker
C. CIOFFI
(Oxford University)
Description
The LHCb experiment needs to store all the information about the datasets and their
processing history of recorded data resulting from particle collisions at the LHC
collider at CERN as well as of simulated data.
To achieve this functionality a design based on data warehousing techniques was
chosen, where several user-services can be implemented and optimized individually
without losing functionality nor performance. This approach results in an experiment-
independent and flexible system. It allows fast access to the catalogue of available
data, to detailed history information and to the catalogue of data replicas. Queries
can be made based on these three sets of information. A flexible underlying database
schema allows the implementation and evolution of these services without the need to
change the basic database schema. The consequent implementation of interfaces based
on XML-RPC allows to access and to modify the stored information using a well
defined encapsulating API.
