Help Center/ Distributed Message Service for RocketMQ/ FAQs/ Instance FAQs/ Why Can't I Select Two AZs When Purchasing a RocketMQ 4.8.0 Instance?
Updated on 2025-07-29 GMT+08:00
Why Can't I Select Two AZs When Purchasing a RocketMQ 4.8.0 Instance?
For the reliability, you are advised to select three or more AZs when creating a cluster RocketMQ 4.8.0 instance. An instance deployed across two AZs may become unavailable when one of the AZs is faulty.
Parent topic: Instance FAQs
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