Large Deployments and Limits - carvenli/pritunl GitHub Wiki
The Enterprise subscription allows a distributed cluster of Pritunl hosts to distribute load and servers across multiple Pritunl instances.
Database
All data stored and communication between Pritunl hosts is done with the MongoDB database. For large clusters a sharded high-performance MongoDB cluster should be used.
User creation
Every user requires generating a certificate and private key for the user. This will take about 1-2 seconds which can become problematic if a lot of users are being created. Pritunl will distribute the user creation to all hosts in a Enterprise cluster. If users are expected to be frequently created the cluster should have several additional hosts to handle certificate creation.
Limits
Pritunl has no limits on the number of organizations, users or servers. For best performance a single organization should not contain more then 50,000 users.