# Setting up a cluster?

**URL:** <https://meta.discourse.org/t/setting-up-a-cluster/23032>\
**Category:** Self-hosting\
**Created:** [10 ديسمبر 2014، 10:32ص UTC](https://meta.discourse.org/t/setting-up-a-cluster/23032 "2014-12-10T10:32:23Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![mpalmer](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/mpalmer/32/45740_2.png) [@mpalmer](https://meta.discourse.org/u/mpalmer)\
**Post date:** [12 فبراير 2017، 5:42ص UTC](https://meta.discourse.org/t/setting-up-a-cluster/23032/5 "2017-02-12T05:42:39Z")

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You need one central Redis. Redis isn’t (just) used as a cache for Discourse; it also acts as a message broker for all the MessageBus traffic, so if you had one Redis per node, things would get… weird. And broken.

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