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Solving real business cases with ClickHouse

TalkinRussianat Saint HighLoad++ 2025 · 2025-06-23..06-24· [databases, web-performance]
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slides:none on file

Using ClickHouse to solve real business cases: describes problems encountered when building a service with ClickHouse—difficulty with updates, huge data volumes requiring massive hardware, performance limits even with sufficient hardware, slowdown from sharding interdependent tables, and a plugin that overloads the database when it should serve historical comparisons. The talk discusses these concrete operational challenges and approaches to handle updates, scaling, sharding trade-offs, and query load in ClickHouse deployments.

AI-written summary · about

  1. 0:00Introduction
  2. 3:34Sharding and replication in ClickHouse
  3. 8:29Distributed query optimization
  4. 12:23Custom solutions and optimizations
  5. 20:31Data and infrastructure
  6. 27:57Heavy query optimization
  7. 39:02Q&A
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