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Distributed Systems & High-Concurrency Feeds

Distributed Systems & High-Concurrency Feeds

In-depth Big-Tech software architecture articles on Distributed Systems & High-Concurrency Feeds by Duong Phuc Khanh (khanhdp · Kido). (Total 1 in-depth engineering monographs & publication essays).

Asymmetric Hybrid Fan-Out Architecture: Taming the 20,600 Writes/s Celebrity Storm with O(N log K) Binary Max-Heap and Valkey Timeline Mixing
Distributed Systems & High-Concurrency Feeds
Nov 8, 2026•15 min read

Asymmetric Hybrid Fan-Out Architecture: Taming the 20,600 Writes/s Celebrity Storm with O(N log K) Binary Max-Heap and Valkey Timeline Mixing

Deep dive into enterprise Activity Feed architecture: Resolving the Pure Fan-out on Read (15,007 req/s) vs. Pure Fan-out on Write (20,600 writes/s) dilemma, O(N log K) K-way Binary Max-Heap cursor merging, atomic Valkey Lua capped ZSET pipelines, and production patterns from @kido/hybrid-feed.