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Microservices 26 Dec 2025

Fan-Out on Write, One Round Trip at a Time

Trill's Timeline service stores each story body once and fans out only the identifier into every follower's sorted set - the right hybrid design, executed as a sequential foreach with one Redis round trip per follower and no batching anywhere.

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Agentic AI & Cloud Engineer · multi-agent systems, RAG and MCP on AWS

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