ADM serves Car Dealers, Automotive Marketing Pros and Internet Sales Managers
The ADM Professional Community website recently experienced two unplanned outages: the first on Thanksgiving evening, November 22, and the second on November 27.
We know that near-perfect up-time is what you’ve come to expect from the ADM Professional Community, and we wanted to let those who are interested know more details about this unplanned maintenance and how we generally respond when outages occur.
Platform uptime and performance are a critical part of the hosted community solution used by the ADM Professional Community, which is sourced from Ning, and we know that any outage could have a significant effect on the health and activity in your community. Ning delivered at least 99.9% uptime consistently from 2011 to October 2012. Obviously, in the past week we’ve failed to meet this standard. I want you to know that we take these outages (and any outage) very seriously. A team of engineers and advocates are always on-call 24/7 to quickly resolve significant incidents. If necessary, we call in additional engineers with relevant expertise. Any time we have an outage, we perform a detailed post-mortem to investigate root causes and specify changes to prevent the issue from recurring.
So, what happened?
The first outage resulted from back-end optimization work our engineering team has been doing over the past three months. The team has been making changes to our architecture to take advantage of newer equipment and powerful new cloud services that weren’t available when the back-end was originally designed. Our expectation is that the optimization process will result in stronger performance and improved disaster recovery in the long-term. However, one of the changes that was made caused a key set of databases to fail, leading to the outage on November 22nd. The engineering team has corrected the issue so it will not recur.
The outage on 11/27 was unfortunately the result of user error by an engineer on our operations team during normal back-end maintenance. We’re revising our systems to prevent this type of error from occurring again.
Again, I realize how important platform uptime and performance are for ADM Professional Community members, and I apologize for the impact of the outages this last week.