Written by Liam McLennan

Many people use Redis for a simple message broker. RedisMQ is a trivial layer on Redis and StackExchange.Redis that probably does not work. It provides two simple messaging patterns:

Publish / subscribe

A publisher publishes messages. 0, 1 or more consumers subscribe to the messages.

var redis = ConnectionMultiplexer.Connect("");
redis.BroadcastSubscribe<string>("this-is-the-channel", message =>
    // do something with the message);
redis.BroadcastPublish("this-is-the-channel", "42");

Competing consumer

A publisher publishes messages to a queue. Messages stay in the queue until someone reads them. Many subscribers may read from the same queue. Each message is processed by just one consumer.

var redis = ConnectionMultiplexer.Connect("");
redis.CompetingConsumerSubscribe<int>("numbers", message =>
    // do something with the message);
redis.CompetingConsumerPublish("numbers", 1);


RedisMQ is not optimised for performance. It is optimized for being simple for me to write. However, the following gives a rough indication of performance.

Strategy # messages Time (s)
Broadcast to 2 consumers 100,000 21.3
Competing consumer with 1 subscriber 100,000 37.7
Competing consumer with 2 subscribers 100,000 23.7


PM> Install-Package StackExchange.Redis
PM> Install-Package Newtonsoft.Json