topic and channel in nsq

Topic and Channel are two important concepts in NSQ.

The producer writes the message to the topic.
There can be multiple channels under a topic, and each channel is a complete copy of the topic.
Consumers subscribe to messages from the Channel.
If multiple consumers subscribe to the same Channel, the messages in the Channel will be delivered to a random consumer.

topic and channel in nsq最先出现在Python成神之路。