Yandex Database — how we guarantee fault tolerance

Yandex Database is a horizontally scalable, geographically distributed, fault-tolerant DBMS which can endure fail of discs, servers, racks, and data centers without consistency loss. For providing fault tolerance, we use our own algorithm of achieving distributed consensus as well as several technical solutions explored in this talk. This talk could be useful for developers of DBMS and DBMS-based app solutions.