I have a horizontally scaled WordPress with shared database and filesystem. It works fine, so far, but my question is how will cache will be flushed? On single-node installation it’s kind easy, you click “clear all caches” and it really does so. Suppose I cleared it on Node-1, will node-2 be cleared aswell? If not, how can I make sure consistency across nodes?
Note, that I’ve read:
How do I enable Database Cluster support?
In order to use Database Cluster you need use WordPress in network mode and enable Enterprise mode for W3 Total Cache.
After enabling Enterprise mode you will find a area inside Database Cache box on the General Settings page. Click ‘Enable database cluster’ to enable the functionality.
And my installation is not networked/multisite WordPress.
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