macrozheng
Nov 11, 2024 · Backend Development
Why Did My RocketMQ Consumer Accumulate 300M Messages? The Hidden ClientId Bug
An unexpected RocketMQ alert revealed over 300 million queued messages, traced to identical clientIds generated by Docker host‑network containers; the article explains the root cause, examines clientId generation, load‑balancing logic, and provides a fix by customizing the clientId to prevent message backlog.
RocketMQclientIddocker
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