Incident: During a scheduled AWS hardware restart, some components of our system failed to launch because an outdated configuration didn't allocate enough resources, resulting in unavailability during regional peak traffic.

Impact: For a period of about 1.5 hours Asana was fully inaccessible to users in the EU data region. No customer data was lost.

Moving forward: This incident involved outdated systems that were inconsistent with our expected state. As a result of the issue, our team will identify and fix inconsistencies in our AWS infrastructure to prevent similar outages.

Our metric considers a weighted average of uptime experienced by users at each data center. The number of minutes of downtime shown reflects this weighted average.