ClickHouse Keeper: A ZooKeeper alternative written in C++
Tom Schreiber and Derek Chia
Sep 27, 2023 - 21 minutes read
Introduction

ClickHouse is the fastest and most resource-efficient open-source database for real-time applications and analytics. As one of its components, ClickHouse Keeper is a fast, more resource-efficient, and feature-rich alternative to ZooKeeper. This open-source component provides a highly reliable metadata store, as well as coordination and synchronization mechanisms. It was originally developed for use with ClickHouse when it is deployed as a distributed system in a self-managed setup or a hosted offering like CloudHouse Cloud. However, we believe that the broader community can benefit from this project in additional use cases.