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  • John Blackbourn

    (@johnbillion)

    WordPress Core Developer

    Query Monitor essentially calls extension_loaded( 'redis' ) for its check (and does the same for several other object caching extensions). Whether or not the actual Redis connection is working is outside the scope of this check in Query Monitor, this is a convenience message more than anything. I don’t think it makes sense to extend its check beyond checking for the extension.

    Thread Starter Torsten Landsiedel

    (@zodiac1978)

    Hi @johnbillion,

    as you are explicitly recommending installing a plugin and are linking to a search, that first entry is this plugin here …

    The Redis object cache extension for PHP is installed but is not in use by WordPress. You should install a Redis plugin.

    … I would strongly recommend modifying the copy to state that this not necessarily means that Redis is usable. This would prevent unnecessary support threads for this and other plugins. Just a heads up.

    Plugin Author Till Krüss

    (@tillkruess)

    Yeah, that makes sense.

    You should install a Redis plugin, if your hosting provider supports Redis.

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