My name is Krzysztof Książek and I am a database administrator since 2007. I’ve been working with different technologies, including PostgreSQL, Redis, MongoDB or ClickHouse but my main area of expertise is MySQL.

I like it for its easiness of use and quite large variety of solutions that have been created around it. MySQL NDB Cluster, Galera Cluster, InnoDB Cluster, asynchronous and semi-synchronous replication, Vitess, ProxySQL, MaxScale.

Those solutions can handle quite some problems thrown at them. Even if your problem is too complex for MySQL to deal with, what I like is how easy you can export data from MySQL to other databases like ClickHouse or Big Data systems.

I very much hope that I will be able to help you in your challenges and that together we will make your MySQL implementation successful.