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chenjunjie cd96953687 RocketMQ UMN 20250723 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>

2025-09-04 09:57:06 +00:00

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RocketMQ Concepts

Topic

A topic is a category of messages. It is the basic unit for creating and retrieving messages.

Queue

A topic consists of multiple queues. A larger number of queues indicates higher retrieval concurrency.

Producer

A producer sends messages to the server.

Producer Group

Producers in a group send the same type of messages with the same logic.

Consumer

A consumer obtains messages from the server.

Consumer Group

A consumer group contains consumers that have similar retrieval behavior.

Broker

Brokers are a cluster of ECSs that process services.

NameServer

A lightweight registry that stores metadata. Before producing or consuming messages, producers and consumers must obtain metadata from a NameServer.

Parent topic: Service Overview

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