ApsaraMQ for Kafka has resolved the performance degradation issue caused by large numbers of additional partitions beyond the resource plan.
The performance of a self-managed open source Apache Kafka cluster deteriorates sharply when there are more than 1,000 partitions in the cluster. Alibaba Cloud ApsaraMQ for Kafka has improved this feature, and a topic can contain an unlimited number of partitions without performance degradation. However, additional partitions beyond the resource plan consume broker resources, so you are billed for these partitions.