Should we remove redis-object-cache plugin ?

VirtuBox · 2019-09-15T21:27:41+00:00

Hello, another question for you about redis-object-cache plugin. Currently the plugin is installed by default with the flag --wpredis but several users fac...

alexlii1971

vasiler Thanks for sharing, you save my tons of time 🙂

Have a nice day.

alexlii1971

Hi vasiler ,

Do you recommand the above configuration method for Woocommece site please?

Thanks

alexlii1971

vasiler Add this plugin https://docs.wp-rocket.me/article/61-disable-page-caching

Update site using --wpfc

Then use plugin Nginx Helper for clearing cache.

In this case, the plugin of Redis object Cache(wordpress.org/plugins/redis-cache) should be deactivated or deleted, right?

vasiler

I do not use Redis anyway. I dont know. I think you are right.

alexlii1971

vasiler

vasiler do not use Redis anyway. I dont know. I think you are right.

Thanks, I will try this method as below on Woocommoce site:

1#Wp-rocket
2#plugin Nginx Helper for clearing cache
3# Using this plugin https://docs.wp-rocket.me/article/61-disable-page-caching
4# Update site using --wpfc

Although, I found there are so manny external connections when commercial plugin used on site, if you like, you can use Snitch(https://wordpress.org/plugins/snitch/) to monitor, and will find things like this screenshot:

http://prntscr.com/spikau
These external connections sometime caused site delay.

alexlii1971

vasiler

Just share what I did:

On my Woocommerce site, there are almost 5000 SKU products, and I am using the following configuration now:

nginx helper + redis-object-cache
Merge + Minify + Refresh
EWWW Image Optimizer

The speed is just ok.

After setup a site with Wp-rockect, and only one SKU one site, the speed is no so fast like what I expected.
I have not test the the following conf method yet:

alexlii1971 1#Wp-rocket
2#plugin Nginx Helper for clearing cache
3# Using this plugin https://docs.wp-rocket.me/article/61-disable-page-caching
4# Update site using --wpfc

Since I am not sure whether it is suitable for Woocommerce site, or do you think it is good method or any experience with the above configuration on Woocommerce?

Thanks

vasiler

I use Wp Rocket with CSS optimization feature active, I installed Snitch and I don't have those delays. They probably only appear when Wp Rocket generates static css.

alexlii1971

vasiler They probably only appear when Wp Rocket generates static css.

Yes. sometimes, but not always.

For commercial plugins, I am just wonder whether it is safe enough for our site, any idea upon security to share please?

Thanks

vasiler

wo site update example.com --ngxblocker for some security rules and Wordfence plugin (optional)

alexlii1971

vasiler wo site update example.com --ngxblocker

Great sharing, I read docs several times, but I missed that🙂
Thanks

alexlii1971

vasiler

I note there is a great tutorial of Microcoaching:

https://docs.wordops.net/how-to/microcaching-with-nginx/

It seems great practice for Nginx fastcgi_cache, any experience with this method on Woocommerce site please?

Thanks

alexlii1971

According to the following info:

VirtuBox Then the main difference between Fastcgi_cache and Redis Full-page cache (fastcgi_cache is also a full-page cache solution) is you cannot use fastcgi_cache with redundant systems, because it would require to share fastcgi_cache path between all servers.

The above configuration method of Fastcgi_cache with Wp-rockect seems limited to only one wordpress site on one server?

What about if there are more than one wordpress sites please?

Thanks

dejioke

alexlii1971 redundant system in this context means multi system, i.e multi droplets, multi vps, multi AWS instances in a case whereby you are auto scaling. So it it does not affect multiple websites in a single system, i.e in a single vps or droplet or single cloud instance

jond1

I use these two plugins and they work incredibly well (for a multi-server configuration)

https://github.com/pressjitsu/pj-object-cache-red
https://github.com/pressjitsu/pj-page-cache-red

alexlii1971

jond1

Thanks for sharing, two questions please?
1# Fastcgi_cache enabled? More than one wordpress site on one server?
2#Do you running Woocommerce on your site please?
3# what are your other configuration or plugins related please? Nginx helpler? Wp-rocket?

Thanks

steelliberty

jond1 I installed the object-cache.php file in the wp-content director and removed redis plugin. which removed the redis object-cache.php drop in -- but I am unable to determine that the cache is working .. I install debug-bar and it shows now object-cache and I tried the admin tools dashboard and it was not able to detect any cache .. the redis-server is running and I can store keys and retrieve .. the permissions are correct on the pj-object -- Do you have any idea why it does not appear to be working ? Thank you

jond1

1) Nope, I do not use fastCGI on any sites because I run in a cluster behind a load balancer
2) I do not, but there are no known issues running these setups because page caches will ignore woocommerce cookies
3) I use Breeze only for its CDN rewriting, so all my assets run on cdn.domain.com and then I aggressively cache cdn.domain.com/* through Cloudflare

alexlii1971

jond1 page caches will ignore woocommerce cookies

jond1 a cluster behind a load balancer

Sounds great, thanks for sharing.

michacassola

Hey @jond1 I would be very interested to know more specifics about your multi server setup.
Do you use CEPH? How do you handle the distributed database?
How do you put your assets on the subdomain?
....
And thanks for those plugin tips!!
@VirtuBox MAybe we can switch the object cache plugin to the one from pressjitsu?

jond1

@michacassola we are not using CEPH. We use AWS for our cluster and I use RDS for the database, so it's distributed and redundant by nature. I use EFS for assets so it's always shared across domains. I have a custom shell script which automatically re-maps wp-content/uploads to the EFS shared drive.

I have a bunch of content written about my setup, I just haven't had time to finish and publish it. Hopefully I'll find time sooner than later. It's a very length tutorial walk through on the high availability WordPress cluster I have setup.

alexlii1971

jond1 I am looking for flexible and high performerce cache method for deploy configuration, and really expect your tutorial too.

steelliberty

jond1
Hi JonD -- I am very much in a place where I want to expand to a high availability WP cluster -- Do you have any documentation or can suggest some third party docs ? Thank you . .

michacassola

I am DIY all the way, don't want to give all my cash to AWS. Would have been so awesome if you'd have had a "normal" multi-server WordOps Setup.

Does anybody have that? @VirtuBox ?

kingkool68

michacassola I used to run a multi-server WordPress setup using EasyEngine v3 a couple years ago. Slides from a talk I developed about how it was set up http://kingkool68.com/scaling-wordpress-on-aws/#/

I also used Redis for full page caching because I could run one Redis instance to support multiple nodes without any sort of caching conflicts. We had object caching enabled which helped speed up the backend which used several ill-performant queries to power data in custom columns in the WordPress backend.

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