Specifications

DMS for RocketMQ is compatible with open-source RocketMQ 4.8.0. Their specifications are described as follows.

The specifications of a RocketMQ 4.8.0 instance are defined on six dimensions:

ECS flavor: flavor of the ECS used by the instance
Number of brokers: scale of the instance
Storage space: storage capacity available for each broker
TPS per broker: TPS performance of each broker
Max. topics per broker: number of topics allowed for each broker
Max. consumer groups per broker: number of consumer groups allowed for each broker

Table 1 lists the flavors of DMS for RocketMQ 4.8.0.

**Table 1** Instance flavors (DMS for RocketMQ 4.8.0)
Flavor	Brokers	Storage Space (GB per Broker)	TPS per Broker	Max. Topics per Broker	Max. Consumer Groups per Broker
rocketmq.4u8g.cluster.small	1–2	300–60,000	15,000	2000	2000
rocketmq.4u8g.cluster	1–10	300–600,000	20,000	4000	4000
rocketmq.8u16g.cluster	1–10	300–900,000	25,000	8000	8000
rocketmq.12u24g.cluster	1–10	300–900,000	28,000	12,000	12,000
rocketmq.16u32g.cluster	1–10	300–900,000	30,000	16,000	16,000