The AHT team needs to access the MaxMind database to provide extended information about IPs as part of our revamp of the CheckUser tool. We have licensing permission from MaxMind to use the data in this way.
===Production===
The MaxMind database is available on all Wikimedia application servers. I believe we can access the flat-file db in the same way that existing code does. There are some wrappers already in progress or in existence.
Another option would be building a full-fledged API to service this data.
===Testing===
The outstanding question is how do we write code that integrates with that data either in local environments or other testing areas. Should we mock the data structure with some fake data? Is the GeoIP Lite database in the same structure? Given its open license, we could more easily copy that data around. What other options are there for testing setups?
===Other Concerns===
Given that this is a nicely indexed flat file database, I'm assuming performance impact for something as low use as CheckUser is negligible. Is that assumption correct?