Speaker
Antonio Amorim
(Universidade de Lisboa (SIM and FCUL, Lisbon))
Description
The ATLAS conditions databases will be used to manage information of quite diverse
nature and
level of complexity. The infrastructure in being built using the LCG COOL
infrastructure and
provides a powerful information sharing gateway upon many different systems. The
nature of
the stored information ranges from temporal series of simple values to very complex
objects
describing the configuration of systems like the TDAQ infrastructure including also
associations
to large objects managed outside of the database infrastructure.
While an unified graphical user interface is crucial for browsing the different data,
it must
understand and display many different types of information in a flexible way
suggesting the use
of run time specific plugins. This extension mechanism was heavily used in the
KTIDBEXPLORER
application that defines and implements not only abstract interfaces to connections
to databases
and files but also supports extended ROOT and online configuration (OKS) objects in the
database. The application is aware of the relations between database objects so it's
relations
(links) can be explored. The core application, built using QT, displays the
hierarchical folder
view and powerful table widgets with panels for selecting the database queries.
An important example of this architecture is the oNline Objects extended Database
browsEr
(NODE), that is designed to access and display all data, including histograms and
data tables,
available in the ATLAS Monitoring Archive. To cope with the special nature of the
monitoring
objects, a plugin from the MDA framework to the Time managed science Instrument
Databases
(TIDB2) is used. The database browser is extended, in particular to include
operations on
histograms like display, overlap, comparisons as well as commenting and local storage.
Authors
Antonio Amorim
(Universidade de Lisboa (SIM and FCUL, Lisbon))
Igor Soloviev
(PNPI (Petersburg Nuclear Physics Institute))
Joao Batista
(Universidade de Lisboa (SIM and FCUL, Lisbon))
Joao De Almeida Simoes
(Universidade de Lisboa (SIM and FCUL, Lisbon))
Lourenco Lopes
(Universidade de Lisboa (SIM and FCUL, Lisbon))
Paulo Pereira
(Universidade de Lisboa (SIM and FCUL, Lisbon))
Ricardo Neves
(Universidade de Lisboa (SIM and FCUL, Lisbon))
Serguei Kolos
(University of California, Irvine (UCI, Irvine))
