Gearman vs RabbitMQ: What are the differences?
Gearman: A generic application framework to farm out work to other machines or processes. Gearman allows you to do work in parallel, to load balance processing, and to call functions between languages. It can be used in a variety of applications, from high-availability web sites to the transport of database replication events; RabbitMQ: A messaging broker - an intermediary for messaging. RabbitMQ gives your applications a common platform to send and receive messages, and your messages a safe place to live until received.
Gearman and RabbitMQ can be primarily classified as "Message Queue" tools.
Some of the features offered by Gearman are:
- Open Source It’s free! (in both meanings of the word) Gearman has an active open source community that is easy to get involved with if you need help or want to contribute. Worried about licensing? Gearman is BSD
- Multi-language - There are interfaces for a number of languages, and this list is growing. You also have the option to write heterogeneous applications with clients submitting work in one language and workers performing that work in another
- Flexible - You are not tied to any specific design pattern. You can quickly put together distributed applications using any model you choose, one of those options being Map/Reduce
On the other hand, RabbitMQ provides the following key features:
- Robust messaging for applications
- Easy to use
- Runs on all major operating systems
"Free" is the primary reason why developers consider Gearman over the competitors, whereas "It's fast and it works with good metrics/monitoring" was stated as the key factor in picking RabbitMQ.
RabbitMQ is an open source tool with 5.94K GitHub stars and 1.78K GitHub forks. Here's a link to RabbitMQ's open source repository on GitHub.
reddit, 9GAG, and Rainist are some of the popular companies that use RabbitMQ, whereas Gearman is used by Instagram, Hootsuite, and Grooveshark. RabbitMQ has a broader approval, being mentioned in 940 company stacks & 548 developers stacks; compared to Gearman, which is listed in 19 company stacks and 5 developer stacks.
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