Agree. From 6+ years of experience it seems that we got fouled by the multi-az promise of being able to survive datacenter outage.
You can survive datacenter (AZ) outage IF you have separate stacks per AZ and don't mix traffic. If you have Kafka cluster spread out in 3 AZ don't get surprised if you just LOWERED your availability because any issue in one AZ makes your stack unstable. And issues in single AZ are quite common.
You can survive datacenter (AZ) outage IF you have separate stacks per AZ and don't mix traffic. If you have Kafka cluster spread out in 3 AZ don't get surprised if you just LOWERED your availability because any issue in one AZ makes your stack unstable. And issues in single AZ are quite common.