How to use redis with Joomla

[Copra]

I have the Pro Pack of DirectAdmin installed with Redis and it is working for WordPress websites. Will it also work for Joomla websites?
In the configuration settings of Joomla you can select Redis for caching. When selecting that option, some new fields will apear and some of that fields are already filled in. I wonder what to fill in. It seems to ask for a redis database password (Redis Server Authentication field).
Is it possible to use Redis for a Joomla website?
I attach the Redis settings in Joomla, so you can see what I mean.

 

[zEitEr]

Hello,

Will the following settings work for you?

• Cache: On - conservative Caching
• Cache-Handler: Redis
• Platform Specific Caching: No
• Cache Time: 15
• Persistent Redis: Yes
• Redis Server Host: {YOUR_SOCKET_PATH}
• Redis Server Port: 0
• Redis Server Authentication: leave empty
• Redis Database: 0

Found here: https://www.easyname.com/en/support/hosting/190-how-does-redis-or-memcached-works-with-joomla

 

[Copra]

Hello,
Thank you very much! I will try this.
At this moment I still have to move the first Joomla website to the new DirectAdmin server. I'll do that next week and let you know if it works. Thank you very much for the tip!

 

[youstable]

Before enabling it make sure its authenticated properly because if not your website load slow like hell until you configure it correctly or disable it

 

[Copra]

I tried the settings of zEitEr but

• Redis Server Port: 0

is not accepted by Joomla. Must be 1 or higher.
Standard Joomla pre-filled 6379
I tried that and then I tried port 1.

There is no difference in website speed (with Redis port 1, Redis port 6379, no Redis), but it is a small website. How can I check if Redis is working for a website?

 

[Ohm J]

Directadmin running redis on unix-socket, so it need set the port to 0.

Also the fixed of joomla ( Redis port ). it fixed only for Joomla 4.

Redis Port can be 0 - Issues with Redis by Socket · Issue #26269 · joomla/joomla-cms

Steps to reproduce the issue Enable Redis cache in Global Configuration. Use a socket: /var/run/redis/redis_6379.sock Set port = 0 Expected result Redis cache works as expected Actual result Error:...

github.com

 

[Copra]

Thanks jamgames2. It is a Joomla 3.10 website :-(
I changed it manual in the file
joomla-cms/administrator/components/com_config/model/form/application.xml
Line 163:

min="1"

I changed it in

min="0"

After that I could change the port in the Joomla administration to 0.

I'm not sure if it is working now. In the users files there is a folder .redis/db with a recent file dump.rdb
Can I conclude from this that it works?

 

[Ohm J]

yes, it working. but you should determine from your current web performance or compare between enable and disable the Redis feature.

 

[johannes]

Even they wrote it was fixed in Joomla 4, its there again in Joomla 5. This time fix it in
/domains/domain.xy/public_html/administrator/components/com_config/forms/application.xml
in lines 140 and 895 (cache and session) .. min="1" --> min="0"