Why and how we use primitive maps

Our way of optimizing storage-services

At trivago we operate on petabytes of data. In live-traffic applications that are related to the bidding business cases we use our in-house in-memory key-value storage-service written in Java to keep data as close to calculation logic as possible.

Having such data stores in public clouds could be quite costly in terms of money and performance, especially if you use applications written in languages with garbage collection mechanics, such as Java. But is there any way how to optimize the performance of such storage-services?

In our latest tech blog, Mikhail Chernyakov explains why and how we use primitive maps to overcome such a challenge.