Impact
At least one user experienced issues accessing the Analytics section at the group level. The issue started on UTC-5 25-03-19 11:57 and was proactively discovered 1.2 hours (TTD) later by a staff member who reported through our internal channels that the information in the Analytics section was not loading correctly. The problem was resolved in 3.1 hours (TTF), resulting in a total window of exposure of 4.3 hours (WOE) [1].
Cause
While separating the front-end from the back-end, a piece of code responsible for transferring necessary resources was removed, assuming it was no longer needed. However, this caused missing dependencies that prevented the Analytics section from displaying charts correctly, as the front-end still relies on certain data from the back-end [2].
Solution
The necessary resource was restored to ensure the Analytics section loads properly [3].
Conclusion
The incident highlighted the need for a more thorough analysis of dependencies when modifying system architecture. INFRASTRUCTURE_ERROR < INCOMPLETE_PERSPECTIVE