“Cache URIs with query string variables” with redis and nginx not working

Hello
requests with query strings are not cached by default. Add those you want to cache in Performance>Page Cache, Advanced sub-box “Accept query string” text area.

Thanks!

Yes, I’ve configured some query string parameters and it doesn’t work. For example, tried to use a single parameter “qtest”. Not working

This should work with NGINX, right?

Hello,
Sorry for the late reply.
Can you please share what is in your debug.log when you add mentioned request?

Thanks!

[25-Mar-2019 09:22:31 UTC] Connection refused
[25-Mar-2019 09:22:31 UTC] PHP Notice: Undefined index: in /var/www/htdocs/wp-content/plugins/w3-total-cache/Cache_Redis.php on line 181
[25-Mar-2019 09:22:31 UTC] Connection refused
[25-Mar-2019 09:22:33 UTC] Connection refused
[25-Mar-2019 09:22:33 UTC] Connection refused
[25-Mar-2019 09:22:33 UTC] Connection refused

The connection test fails for some reason :\

Hello,

This can also mean that Redis is not configured and W3 Total Cache can’t reach the server.
Please check our FAQ page for Redis installation

Thanks, working fine now

I need to also clean these caches from redis programmatically – how do I do that given that I know what is the exact post ID and URL?

thanks

Hello,

You can use the code below for a specific post/page:

if (function_exists('w3tc_flush_post')){
    w3tc_flush_post($post_id);
}

Thanks, but I talk about a URL with uri params. Does it work for this case? Will it flush the query params version