GlueDomains: concepts@work

Gluedomains is a prototype implementation of the concepts introduced so far: it is included in the official Italian release of LCG 6.0.

We envision a best effort only Grid, where theodolites run active network monitoring tools.

Globus MDS is used to make network service characteristics available to users (typically, grid aware applications or Grid monitoring tools like GridICE).

The overall architecture is split in 4 modules (disregarding monitoring tools):

• the GlueDomains database: used to map services to domains and to store theodolite descriptions;
• the GlueDomains theodolite management: which controls the activity of theodolite services;
• the GMA plugin: which is in charge of transferring observations from the monitoring tools to the GMA back end;
• the GMA back-end: which submits the GMA plugin output to the GMA repository.