Posts by Irene Martínez

How we tracked down petabytes of orphaned objects in our ClickHouse clusters, recovered tens of thousands of dollars in monthly storage costs, and hardened our cleanup and recovery procedures after almost losing data along the way.

How we run ClickHouse on top of object storage with local SSD caching, zero-copy replication, and a packed part format that cuts S3 costs by 30-40%.