Active users for March on GitLab.com seems completely off

Description

The notion of active users on GitLab is measured using the last activity date that we record on Redis. We retrieve this activity with an API method (https://docs.gitlab.com/ee/api/users.html#get-user-activities-admin-only).

On March 31, I see that the number of active users in the last 30 days is 60 672. This is extremely low compared to our previous 290k users.

I suspect that we have treated Redis as ephemeral and restarted it or something sometimes in Feb-March, leading to a count that is not accurate anymore.

• Is this possible that this happened? @pcarranza
• I still need to know the number of active users for March. Can we run a query to know the number of users with last sign in date between March 1, 2017 and March 31, 2017? @yorickpeterse