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Denis Reznik

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Database Highload: When to Scale and When to OptimizeHighload fwdays'192019-10-05
Shows how to decide between scaling and optimizing using concrete metrics (CPU%, requests/sec, disk latency/IOPS, cache life) rather than buzzwords. Describes…
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Panel Discussion: DatabasesHighload fwdays'192019-10-05
Panelists compare concrete tradeoffs for databases: MongoDB transactions add latency and split‑brain risk, so teams sometimes replace MongoDB when they need…
Panel in Russian on
Query Optimization: Don’t Know What to Do? Do What You Know.NET fwdays'182018-04-15
Covers practical techniques for SQL query optimization: how to diagnose slow queries, read execution plans, and apply concrete fixes like indexing, query…
Talk in Russian on
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