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.

If you’ve never heard about Memcached, it is simply a high-performance, distributed memory caching system which uses a key-value store for strings and objects. Usually, it serves for saving data originally retrieved from a database or external services. As simple as it is, it can improve the performance of your website quite a bit. The API of Memcached is very simple and accessible from most of modern programming languages. A simple example:

We do think that our tech blog is full of interesting things powered by our engineers' great stories. Let me take you on a journey of how we maintain the trivago tech blog from the technical perspective and how we recently automated its deployment process.

We're a data-driven company. At trivago we love measuring everything. Collecting metrics and making decisions based on them comes naturally to all our engineers. This workflow also applies to performance, which is key to succeed in the modern Internet.