Final Status: Engineers had identified an issue within the Yammer service and have confirmed that service is now restored. Engineers shut down the added workers that were used to process messages.
User Experience: Affected users may have been experiencing delays when accessing or using Yammer.
Customer Impact: Customer impact appeared to be limited during this event.
Incident Start Time: Friday, April 10, 2015, at 12:20 AM UTC
Incident End Time: Friday, April 10, 2015, at 12:32 AM UTC
Preliminary Root Cause: A database had experienced an increased load due to additional workers being added to process messages that had caused a backlog in the queue.
Next Steps: The following is a list of known action item(s) associated with this incident. As part of the Office 365 problem management process, additional engineering actions may be identified to improve the overall service.
– Action: Investigate resource utilization patterns and automated recovery options to prevent reoccurrence of the issue.
Please consider this service notification the final update on the event.