GlueDomains database

The GlueDomains database is under work: the running prototype is centralized, which limits the scalability of the whole structure to a few tens of domains (based on a prospective simulation).

However the present solution exhibits several interesting features:

• a monitoring host downloads the description of its activity from the GlueDomains server: the installation procedure consists of installing some RPMs, without tricky installation interviews;
• a monitoring host keeps its activity synchronized with the content of the database;
• the inability to carry out a certain monitoring task is harmless, as well as the unreachability of the centralized database.
• the update of the database is semi-automatic: a script helps the compilation of its content, starting from XML descriptions of the activity of each monitoring host. In practice this means that the human interface is O(n).

We plan to shift to a fully distributed database, cached on each monitoring host, using a gossip based technique.

In this frame, the MySQL technology will be probably dropped.