“ClickHouse was the perfect fit for what we were doing. It just worked.”  Ricardo Magalhaes, Lead Software Engineer

ClickHouse is a leading platform for open-source columnar database technology and real-time analytics. With ClickHouse, developers can delve into documentation, case studies, and performance benchmarks to learn how to build highly scalable and performant analytical systems. It provides tips about ClickHouse's storage engine, query execution, and distributed architecture. Developers can gain insights into their data in real-time, enabling them to make informed decisions and extract  business insights.

ClickHouse

Critical Manufacturing, a global MES software provider, migrated from Microsoft SQL Server to ClickHouse Cloud to handle billions of shop-floor events with sub-second query performance. Discovered via a Reddit thread, ClickHouse was adopted after a rapid POC showed queries that took minutes on SQL Server returning in milliseconds. The platform now powers real-time analytics, equipment telemetry, observability via OpenTelemetry, and RAG-based AI workloads. Key technical optimizations include ELT over ETL, ReplacingMergeTree for deduplication of late-arriving events, denormalization to avoid costly joins, and TTL-based data lifecycle management. Next steps include migrating to replicated table engines for high availability.

How Critical Manufacturing uses ClickHouse to bring real-time intelligence to the factory floor

What's next: high availability at scale #