Redis接続の予想数

[david (David Taylor)]

@dotnetnate

these are just individual deployments

You must have a separate redis for each discourse deployment.

Multiple discourse on a single redis host

Each Discourse needs its own totally separate redis server because message-bus uses Redis Pub/Sub, which is shared between all databases on a Redis server. If you run Discourse in a multisite configuration, then we automatically add a site-specific prefix to all keys and pub-sub channels. That same prefixing is not available for standard ‘single site’ installations.