Help Center> Distributed Message Service for Kafka> User Guide (Kuala Lumpur Region)> FAQs> Topics and Partitions> Is There a Limit on the Number of Topics in a Kafka Instance?
Updated on 2022-08-12 GMT+08:00
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Is There a Limit on the Number of Topics in a Kafka Instance?

No, there is no limit on the topic quantity. However, there is an upper limit on the aggregate number of partitions of topics. After the partition limit is reached, you can no longer create topics.

The partition limit varies depending on the flavor, as shown in the following table.

Table 1 Kafka instance specifications

Bandwidth

Brokers

Underlying Resource Type

I/O Type

TPS (High-Throughput)

TPS (Synchronous Replication)

Maximum Partitions

100 MB/s

3

c6_2 vCPUs | 4 GB

High I/O

100,000

60,000

300

c6_2 vCPUs | 4 GB

Ultra-high I/O

100,000

80,000

300

300 MB/s

3

c6_4 vCPUs | 8 GB

High I/O

300,000

150,000

900

c6_4 vCPUs | 8 GB

Ultra-high I/O

300,000

200,000

900

600 MB/s

4

c6_8 vCPUs | 16 GB

Ultra-high I/O

600,000

300,000

1800

1200 MB/s

8

c6_8 vCPUs | 16 GB

Ultra-high I/O

1.2 million

400,000

1800
Parent topic: Topics and Partitions