How Many Consumer Groups Are Supported?

As shown in Table 1, Table 2, and Table 3, the number of consumer groups supported varies depending on the instance flavor.

**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

**Table 2** Instance flavors (DMS for RocketMQ 5.x basic edition single-node)
Flavor	Storage Space (GB)	TPS	Max. Topics	Max. Consumer Groups
rocketmq.b1.large.1	100–30,000	500	50	500

**Table 3** Instance flavors (DMS for RocketMQ 5.x basic edition cluster)
Flavor	Storage Space (GB)	TPS	Max. Topics	Max. Consumer Groups
rocketmq.b2.large.4	200–60,000	2000	100	1000
rocketmq.b2.large.8	200–60,000	4000	100	1000
rocketmq.b2.large.12	200–60,000	6000	100	1000

Parent topic: Consumer Group FAQs

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