问题
Azure Service bus premium tier doesn't allow message replication in case of geo-disaster. Availability zones provide replication across data centers within a region but are not enabled for all regions right now. In the event of disaster no replication is provided across regions, how service bus ensures messages are not lost or Is it to be managed by the developer?
https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-outages-disasters
Standard tier says about active-active active-passive. But in our scenario we need premium subscription and paired regions solution seems incomplete since messages are not replicated.
回答1:
Disaster Recovery is supported for metadata plane only (queue, topics, and subscriptions). It is not supported for data plane (actual messages). The latter will be coming in the future to complete disaster recovery story. Standard tier does not support DR and unlikely to support it in the future. In general, standard tier is more suitable for development, testing, and low risk scenarios.
Note that Disaster Recovery features are only available with the premium tier of Azure Service Bus.
来源：https://stackoverflow.com/questions/55556999/azure-service-bus-disaster-recovery-for-messages