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Kafka From The Log Up

Append-only logs, segments, offsets, consumer progress, and the storage contract behind streaming infrastructure.

kafka

May 13, 2026 / 1 min read

Kafka Architecture Notes: Logs, Segments, and Consumer Lag

Engineering notes on Kafka's log-oriented architecture, segment lifecycle, replication, and why consumer lag is an operational signal rather than just a metric.

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Kafka From The Log Up

Kafka Architecture Notes: Logs, Segments, and Consumer Lag

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