Repository Capacity
Posted: 17 Jul 2013, 09:03
Is there a limitation to how much data essential modeller can hold?
In theory no. Like any such repository, the system resources of the platform on which you are running it will act as a constraint - both in terms of memory and processor power. However, using 64-bit Java and maximum memory of 2GB and above provides plenty.
Within the 2GB RAM config, we have an Essential Viewer performing normally and working with repositories approaching half a million instances.
In terms of the Protege side, the Protege team have experience of running repositories of over 1.5 million instances.
When running in multi-user configurations, we recommend using a relational database such as MySQL to store the repository rather than the Protege Files, which significantly improves performance and reduces server memory usage on large repositories. The underlying database that is used by Protege is very small, using a single table for each repository/project.
Jonathan