Overview
Master advanced performance optimization techniques for ClickHouse applications in this comprehensive webinar that provides a systematic approach to enhancing database performance. Learn to evaluate and improve query performance through a structured framework covering I/O operations, compute resources, compression techniques, and indexing strategies. Explore essential diagnostic tools including system tables and EXPLAIN statements, while gaining practical insights into optimizing various query scenarios from MergeTree data on block storage to Parquet files in data lakes. Dive deep into topics such as slow query analysis, efficient data reading strategies, aggregation optimization, JOIN operations, distributed queries, and the new Query Analyzer in ClickHouse 24.3. Discover best practices for RAM management, cache optimization, and handling concurrent operations to achieve peak performance in your ClickHouse implementations.
Syllabus
Introduction
Overview of ClickHouse
Understanding Performance Issues
Tools for Query Optimization
Finding Slow Queries
I/O: Key Metric for Performance
Using Indexes and EXPLAIN statements
Fixing Full Scan
Efficient Data Reading Strategies
Aggregation and Group By Optimization
JOIN Optimization Techniques
Distributed Query Optimization
New Query Analyzer in ClickHouse 24.3
RAM and Cache Management
Optimization for Concurrency
Additional Resources and Closing Remarks
Taught by
Altinity