kubernetes - How to calculate "group_replication_message_cache_size" in mysql group replication?

Question

I'm running mysql(v8.0.21) single primary group replication in the Kubernetes cluster. Here, we are setting resource limits for each pod.

        resources:
          limits:
            cpu: 500m
            memory: 1Gi
          requests:
            cpu: 500m
            memory: 1Gi

By default, the value of group_replication_message_cache_size is 128Mi, I'm trying to find a relationship with the given memory limit so that we can get the maximum performance.

• How to calculate/determine group_replication_message_cache_size from the memory limit? like what is the percentage? what should be the maximum value?

Answer 1

等待大神答复