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doc-exports/docs/dms/umn/kafka-faq-0033.html
chenjunjie 190f09501c DMS UMN 20250314 version 
Reviewed-by: Liudmila Denisova <ldenisov@noreply.gitea.eco.tsi-dev.otc-service.com>
Co-authored-by: chenjunjie <chenjunjie@huawei.com>
Co-committed-by: chenjunjie <chenjunjie@huawei.com>
2025-10-06 09:50:17 +00:00

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Is There a Limit on the Number of Client Connections to a Kafka Instance?

Yes. The maximum allowed number of client connections varies by instance specifications.

Table 1 Number of connections of earlier Kafka instances

Assured Bandwidth

Max. Connections

100 MB/s

3,000

300 MB/s

10,000

600 MB/s

20,000

1,200 MB/s

20,000
Table 2 Number of connections of later Kafka instances

Flavor

Max. Client Connections per Broker

kafka.2u4g.cluster.small

2,000

kafka.2u4g.single.small

2,000

kafka.2u4g.cluster

2,000

kafka.2u4g.single

2,000

kafka.4u8g.cluster

4,000

kafka.8u16g.cluster

4,000

kafka.12u24g.cluster

4,000

kafka.16u32g.cluster

4,000
Parent topic: Connections