ClickHouse community wisdom

Learn from the ClickHouse community with real world scenarios and lessons learned

These interactive guides represent collective wisdom from hundreds of production deployments. Each runnable example helps you understand ClickHouse patterns using real GitHub events data - practice these concepts to avoid common mistakes and accelerate your success.

Combine this collected knowledge with our Best Practices guide for optimal ClickHouse Experience.

Problem-specific quick jumps

Issue	Document	Description
Production issue	Debugging insights	Community production debugging tips
Slow queries	Performance optimization	Optimize Performance
Materialized views	MV double-edged sword	Avoid 10x storage instances
Too many parts	Too many parts	Addressing the ‘Too Many Parts’ error and performance slowdown
High costs	Cost optimization	Optimize Cost
Success stories	Success stories	Examples of ClickHouse in successful use cases

Last Updated: Based on community meetup insights through 2024-2025
Contributing: Found a mistake or have a new lesson? Community contributions welcome