Speeding
up Gazprombank’s
internal systems
by a factor
of 50 with Tarantool

In mid-2019, Gazprombank launched a project to develop and implement a system based on Tarantool Data Grid. The solution caches data from different banking information systems and ensures the desired performance.

All the data, both basic and operational, is stored in RAM. This ensures the necessary level of performance for any workload: up to hundreds of thousands of requests per second per an instance.

Data changes are immediately available to all data consumers, so the solution can be classified as a real-time system. It provides data with a frequency of about 1500 RPS and a response time of less than 100 ms.

The project consisted of several phases. The first phase involved implementing the mechanism of loading bank card information from the CBS into the system. This phase was necessary to check and debug the system in production in terms of integration and periodical data loading.

At the second phase, the bank implemented card product data delivery from the cache to the unified front end.

At the final phase, full data set upload was implemented in the unified front end: deposits, accounts, unallocated metal accounts, and loans could now be requested from the system.

With Tarantool Data Grid, Gazprombank extended the functionality of customer service channels without changing the existing banking system. Thus, the bank managed to create a solution with easily extensible functionality while maintaining high performance and full data reliability.