General Information

ATLAS data processing will make use of a distributed infrastructure of relational databases for access to various types of non-event data and event metadata. Distribution, replication, and synchronization of these databases, which are likely to employ more than one database technology (e.g. Oracle in larger centers and MySQL in smaller settings and for smaller applications), must be supported according to the needs of the various database service client applications.

Activities and people

ATLAS will favor common LHC-wide solutions and will work with the LCG and the other experiments to define and implement common solutions. ATLAS (David Malon) initiated a distributed database deployment project in the LCG.

1. System design and scalability
2. Access control, grid-enabled user authorization, elimination of clear-text passwords
3. Data exchange protocols, tools, procedures
4. Browsing and monitoring tools
5. Evaluation of new database server tools and technologies; validation of new versions

• Jack Cranshaw
  System design and scalability, best practices
• Ed May
  Grid-enabling databases
• Dantong Yu
  Distributed database synchronization
• Julius Hrivnac
  Heterogeneous database replication
• Kaushik De
  Oracle integration issues
• Iouri Sedykh
  Web browsing and administration tools
• Sven A.Schmidt
  ConditionsDB data extraction/exchange tools
• Luis Pedro
  Distributed database monitoring

Relevant links

• Distributed Deployment of Databases for LCG