Big Data Technology Architecture
Sep 9, 2019 · Operations
Investigation and Resolution of Partial Queue Consumption after RocketMQ Topic Expansion
This article details a real‑world RocketMQ case where expanding a topic's queue count caused two consumer groups to miss messages on one broker, explains the root cause of missing subscription metadata after cluster scaling, and outlines the manual steps taken to restore full consumption.
Cluster ScalingConsumer LagMessage Queue
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