Google Zanzibar: The Global Authorization System Powering Billions of Permissions
Google Zanzibar: The Global Authorization System Powering Billions of Permissions In the world of massive-scale internet services, managing who can access what is a monumental challenge. Google Zanzibar addresses this head-on as a globally distributed authorization system that handles trillions of access control lists (ACLs) and millions of queries per second while maintaining sub-10ms latency and over 99.999% availability.[2][3] Deployed across services like Google Drive, YouTube, Photos, Calendar, and Maps, Zanzibar ensures consistent, fine-grained permissions for billions of users without compromising speed or reliability.[2][4] ...