Speaker
I. Gaponenko
(LAWRENCE BERKELEY NATIONAL LABORATORY)
Description
A new, completely redesigned Condition/DB was deployed in BaBar in October 2002. It
replaced the old database software used through the first three and half years of
data taking.
The new software aims at performance and scalability limitations of the original
database. However this major redesign brought in a new model of the metadata, brand
new technology- and implementation- independent API, flexible configurability and
extended functionality.
One of the greatest strength of new CDB is that it's been designed to be a
distributed kind database from the ground up to facilitate propagation and exchange
of conditions (calibrations, detector alignments, etc.) in the realm of the
international HEP collaboration.
The first implementation of CDB uses Objectivity/DB as its underlying persistent
technology. There is an ongoing study to understand how to implement CDB on top of
other persistent technologies.
The talk will cover the whole spectrum of topics ranging from the basic conceptual
model of the new database through the way CDB is currently exploited in BaBar to the
directions of further developments.
Primary authors
D. Brown
(Lawrence Berkeley National Laboratory (LBNL))
I. Gaponenko
(LAWRENCE BERKELEY NATIONAL LABORATORY)
