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Improving response time by 12% for apps and up to 54% for APIs by shifting 26+ applications from on-prem to AWS cloud

the story

The client is one of the leading solution providers for automotive dealers across the world through its various brands. With real-time data and powerful inventory management tools, the client’s digital intelligent products and solutions help dealers outperform competitors.

To complement a rapidly growing business, the client wanted to boost the existing applications’ scalability and broaden the current offerings’ availability by moving to the cloud. Nagarro helped migrate the 26+ applications (both user-facing and backend) to AWS through careful wave planning and segregation and provided support for database migration. This led to a host of benefits, including a reduction in maintenance costs, resource utilization, and outages in the future.

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the challenge

Most of the applications and all the databases of the client were set up on-premise. This led to common issues like time consuming deployments, infrastructure constraints, and resiliency & maintenance concerns. Also, with an increasing user base, scalability challenges and the increasing cost of supporting infrastructure needed to be addressed.

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the solution

Nagarro and the client’s team worked together to migrate more than 26 applications from on-prem to AWS. Together, we identified the prerequisites and did a mural story mapping to determine the scope of migration for different applications. We upgraded the Oracle drivers in all the applications to make them compliant with AWS cloud and added tags for budget monitoring. We also carried out application upgrades and cloud modernization, which included upgrading to .NET 6 and Oracle driver. Our team constantly measured the application performance metrics against on-prem instances.

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the outcome

The applications are now highly available as well as scalable because of multiple Availability Zone (AZ) and multi-region deployment. The application response time has improved between 3% and 12% and API response time between 14% and 54%. For certain services, throughput has improved by 35%. By migrating the applications to AWS, we have also simplified maintenance & monitoring, strengthened security, and significantly reduced cost & latency.