21-27 March 2009
Prague
Europe/Prague timezone
- chep2009@particle.cz
Support
The ALICE Electronic Logbook
Presented by Vasco CHIBANTE BARROSO
on
26 Mar 2009
from
08:00
to
08:20
Content
All major experiments need tools that provide a way to keep a record of the events and activities, both during commissioning and operations. In ALICE (A Large Ion Collider Experiment) at CERN, this task is performed by the Alice Electronic Logbook (eLogbook), a custom-made application developed and maintained by the Data-Acquisition group (DAQ). Started as a statistics repository, the eLogbook has evolved to become not only a fully functional electronic logbook, but also a massive information repository used to store the conditions and statistics of the several online systems. It's currently used by more than 600 users in 30 different countries and it plays an important role in the daily ALICE collaboration activities.
This paper will describe the LAMP (Linux, Apache, MySQL and PHP) based architecture of the eLogbook, the database schema and the relevance of the information stored in the eLogbook to the different ALICE actors, not only for near real time procedures but also for long term data-mining and analysis. It will also present the web interface, including the different used technologies, the implemented security measures and the current main features. Finally it will present the roadmap for the future, including a migration to the web 2.0 paradigm, the handling of the database ever-increasing data volume and the deployment of data-mining tools.
Place
Location: Prague
Address: Prague Congress Centre
5. května 65, 140 00 Prague 4, Czech Republic
Co-authors
- Klaus SCHOSSMAIER CERN
- Csaba SOóS CERN
- Pierre VANDE VYVRE CERN
- Barthelemy VON HALLER CERN
Event calendar file