Optimizing Log Management with ClickHouse at OLX India

Efficient log management is essential in today's cloud-native environments, yet traditional solutions like ElasticSearch often face scalability issues, high costs, and performance limitations. This talk delivered live at the Gurgaon meetup on March 22, Pushpender gives an overview of common logging tools and their challenges based on his experience at OLX India, followed by an in-depth look at ClickHouse's architecture. He compares ClickHouse with ElasticSearch, focusing on improvements in query performance, storage efficiency, and overall cost-effectiveness. A key highlight will be OLX India's migration to ClickHouse, detailing the motivations behind the shift, the migration strategy, key optimizations, and the resulting 50% reduction in log storage costs. Pushpender wraps up his talk with best practices for optimizing performance and reducing operational costs, lessons he and his team learned in their journey to an optimized and cost-effective log management solution with ClickHouse.

You can find the slides from https://github.com/ClickHouse/clickhouse-presentations/blob/master/2025-meetup-Delhi-1/Talk%203%20-%20OLX%20India%20-%20Delhi%20Meetup_22Mar25.pdf