[julik]

Something like that, yes. A tenant that hasn't been opened yet - well, you create the tenant first, and then proceed "as normal". With ActiveRecord, your `pool:` configuration defines how many database handles you want to keep open at the same time. I set it relatively high but it can be tweaked, I'd say. And there is automatic eviction from the pool, so if you have a few sites which are popular and a lot of sites which are not popular - it should balance out.

There could be merit to "open and close right after" though, for sure.