GLITE Tutorial

Advanced gLite: R-GMA

Relational Grid Monitoring Architecture.

• Consumers may query information.
  • A subset of SQL is used as the query language.
• Producers may publish information.
  • The "database" consists of "virtual tables".
  • Each table can be filled with a list of "tuples" conforming to the table's "schema".
• A registry maps producers to consumers.
  • Producers may register for certain tables.
• Handling of a query:
  • From the registry, a suitable producer is selected and contacted to answer the query.