MQ::STREAM Systems Engineering
The Architecture of High-Throughput Event Streaming
Modern distributed systems are not built on synchronous RPC waterfalls. They are built on asynchronous, fault-tolerant append-only commit logs that decouple services, buffer spikes, and preserve an immutable record of historical truth.
01 / IMMUTABILITY
Append-Only Logs
By avoiding random memory updates and in-place mutations, sequential disk writes achieve physical throughput speeds comparable to raw network bandwidth.
02 / ZERO-COPY I/O
Kernel PageCache
Leveraging Linux sendfile() transfers cached disk blocks straight to network sockets without crossing user-space memory or burning CPU cycles.
03 / FAULT RESILIENCE
Quorum & DLQs
In-Sync Replicas guarantee data survival across full server crashes, while dead-letter queues protect pipelines from poison pills.
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