~/talk

ClickHouse Is Slowing Down

TalkinRussianat HighLoad++ Moscow 2018 · 2018-11-08..11-09· [databases]
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slides:none on file

A practical guide showing how to build inefficient solutions with the ClickHouse columnar database. It demonstrates specific anti-patterns and mistakes when using ClickHouse that cause slowdowns and poor performance, aimed at developers of high-load systems.

AI-written summary · about

  1. 0:00Introduction
  2. 6:31Old system problems
  3. 11:50Switching to ClickHouse
  4. 19:13Data write issues
  5. 27:18Index optimization
  6. 34:01Array memory problem
  7. 38:12Final improvements
  8. 43:52Q&A
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