Cornell University Stabilizes Key Financial App with AppDynamics
Provided visibility into ongoing performance problems
Reduced turnaround time on user complaints
Allowed IT to optimize code for slow transactions
Challenge: Complex transactions caused application to crash
System (KFS). The university's financial services department used the application to set up billing and accounting, make purchases and fill purchase orders. Many of Cornell's employees depended upon this system's uptime and availability to do their jobs.
However, the application could not always support the complex transactions that Cornell's employees needed. Some important transactions, such as making a purchase, required multiple levels of review and approval, and this complexity sometimes brought the application down. “We had issues with the system crashing or becoming non-responsive a few times a week,” said Bryan Hutchinson, former KFS Service Manager. “It was challenging trying to pinpoint the root cause of those issues.”
“AppDynamics lets us bridge the gap between anecdotes from users and actual, actionable information.”Kevin Kronenbitter, KFS Technical Lead, Cornell University
Cornell University is the largest Ivy League school with more than 20,000 students. Its campus includes 14 colleges and schools: seven undergraduate units and four graduate and professional units in Ithaca, NY; two medical graduate and professional units in New York City, and one in Doha, Qatar. Cornell is a major research university and a land-grant institution dedicated to its mission of accessibility and opportunity, outreach and public service.
Gained visibility into production
In order to find the bottlenecks that were causing performance problems, Hutchinson and his team used profilers and monitoring tools like YourKit and JavaMelody. These tools, however, incurred too much overhead to be of any use in production, which was where the KFS Team needed visibility. “Fixing something in development doesn't mean fixing something in production. Neither of our tools provided the visibility and low overhead that the AppDynamics platform does in production,” said Kevin Kronenbitter, KFS Technical Lead.
Ultimately, Cornell decided to purchase the AppDynamics platform to gain insight into their production application. They chose the AppDynamics solution at the recommendation of Kuali consultants and other partner schools using KFS. AppDynamics' long history with Kuali applications gave them confidence in the product.
AppDynamics delivered actionable data to improve transactions
With the AppDynamics platform, Hutchinson and his team reduced the amount of time it took to respond to complaints from end users. “Now we're able to correlate the symptoms to the problem. It's reduced the turnaround time on complaints drastically,” Hutchinson said. “We've been able to turn around fixes within half a day.”
“We found the biggest benefit from the outlier request snapshots with our payment request transactions,” Kronenbitter said. Not all transactions in their application were the same. Some were larger and took more processing time. With the AppDynamics platform, Kronenbitter could see how these transactions were performing relative to their respective baselines. “We were able to identify a bottleneck in the transaction that had many items on it, and we were able to refactor the code to eliminate the requests that weren't really necessary,” he said.
The platform's request snapshots capability was most beneficial for Kronenbitter. These snapshots not only allowed him to troubleshoot performance problems faster, but enabled him to perfect his code. “The AppDynamics platform allows us to see what is going on and identify the issues that could be refactored and made faster,” he said. “It lets us bridge the gap between anecdotes from users and actual, actionable information.”
“Now we're able to correlate the symptoms to the problem. The AppDynamics platform has reduced the turnaround time on complaints drastically.”Kevin Kronenbitter, KFS Technical Lead, Cornell University