Help Center/ Distributed Message Service for Kafka/ Drawer/ Creating a Topic/ Replicas

Updated on 2025-06-19 GMT+08:00

Replicas

Parameter Explanation

Replicas
A replica is a redundant copy of a partition in a topic. Each partition can have one or more replicas. The more replicas, the higher the message reliability.

If an instance node is faulty, an internal service error may be reported when you query messages in a topic with only one replica. Therefore, you are not advised to use a topic with only one replica.

FAQs

Can I Change the Replica Quantity?

Yes. You can change the replica quantity by reassigning partitions. For details, see Reassigning Partitions.

Parent Topic: Creating a Topic

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