Also have thousands of MSSQL databases, but with significant investment in tooling it really is transparent from a feature development standpoint, and our featu

Also have thousands of MSSQL databases, but with significant investment in tooling it really is transparent from a feature development standpoint, and our feature toggles are dirt simple. Another comment suggested doing queries across so many databases is challenging, and it's just not, we have both adhoc query capabilities across the fleet and a traditional data warehouse... Now, trying to make additional infrastructure changes is challenging, but the architecture is robust enough to solve all the immediate business needs.