48
TL; DR - On MageStack we use Varnish, Redis (cache), Redis (sessions) and Eaccelerator/Zend OPCache (depending on PHP version)
You've already got most of it understood.
The cache backend, session store, opcode cache, full page cached and reverse proxy cache are all completely different.
You can use different technologies for all and you can use them ALL ...
answered Dec 11 '14 at 9:17
Ben Lessani - Sonassi
16.9k4 gold badges38 silver badges65 bronze badges
28
There are two difficult things in computer science:
Naming things
Cache invalidation.
Hole punching falls into category #2 :)
General
The best approach is to start at the lower points of the stack and optimize up to the frontend of Magento.
Database and Filesystem
Should always be the first areas to focus on. Because. I/O.
MyTop is a handy Linux ...
19
Is Varnish right for you?
Varnish isn't the be-all and end-all of Magento performance. Its great to offset load from bots & window-shoppers - but it shouldn't be your first port of call to actually making your store faster.
In fact, implementing Varnish should be the last performance modification to your store. Only drop it in once you are seeing the ...
answered Feb 4 '13 at 11:27
Ben Lessani - Sonassi
16.9k4 gold badges38 silver badges65 bronze badges
12
You've been advised poorly.
Remember that AWS doesn't do infinite scaling miracles, its just a virtual server provider
AWS is nothing more than a set of virtual servers, running in a contended, shared environment. Coupled with the fact it runs older generation hardware, that has its resources crippled by the AWS hypervisor - its performance is less than ...
11
It depends on what your module is rendering. It boils down to
do not render private, customer specific data server side.
The exception being on completely un-cached pages (for example the customer account dashboad).
In summary, I think it boils down to approaching module creation with a client-side first mindset. It is best to assume that GET and HEAD ...
10
The problem is related to an incompatibility between Magento 1.8 and Turpentine. The latest version of Turpentine requires that the varnish configuration be modified to include the following line under DAEMON_OPTS
-p esi_syntax=0x2
Once this was applied, it was necessary to restart the varnish service, apply the Varnish Config (Under Cache Management in ...
10
Log in to the Magento Admin as an administrator.
Click STORES > Configuration > ADVANCED > System > Full Page Cache
From the Caching Application list, click Varnish Caching
Enter a value in the TTL for public content field.
Expand Varnish Configuration and enter the following information:
Click Save Config.
Click one of the export buttons to ...
9
I had the same issue, I found a solution for this.
I just removed the ttl attribute from /vendor/magento/module-theme/view/frontend/layout/default.xml and the menu bar appeared again.
8
I Would go for Redis + APC with Varnish on top.
'Why Redis' you ask? Read this excellent SO answer. Redis basically replaces Magento's standard file-based caching system. Since Redis is faster it'll give you some improvement on speed.
Varnish actually doesn't have that much to do with the inner workings. It's put on top and caches static content so it ...
7
Not through Turpentine, but you can run this command (as root/sudo) to flush just the homepage (may need to adjust if Magento is not installed at the top level of your site):
varnishadm ban.url '^/(?:index\.php/?)?$'
7
The answer I found is, Yes, a Varnish HIT should be recorded for cached pages in Magento 2 when Varnish is properly enabled. By properly, I mean:
Varnish installed and running
Magento 2 configured to use Varnish as FPC (Stores -> Configuration -> System -> "Full Page Cache"
Download the vcl Magento gives you in the above admin area and load it into Varnish.
...
7
We user varnish and redis cache on our server and had this same error. This is the procedure we followed for a successful upgrade.
composer require magento/product-community-edition 2.2.6 --no-update
composer update
rm -rf var/di/* var/generation/* var/cache/* var/log/* var/page_cache/*
redis-cli flushdb
curl -X 'PURGE' -H'X-Magento-Tags-Pattern: .*' ...
6
You can try using Nexcess_Turpentine, a free and community maintained Varnish and Magento module.
From the module README.md
Features
Full Page Caching, with hole-punching via Varnish ESI and/or AJAX, even for logged in visitors
Configurable via standard Magento methods (Admin system configuration and layout XML), no manual editing of Varnish config ...
6
Finally I fixed myself the issue.
env.php
'http_cache_hosts' =>
array (
0 =>
array (
'host' => '127.0.0.1',
'port' => '80',
),
),
default.vcl
if (req.method == "PURGE") {
if (client.ip !~ purge) {
return (synth(405, "Method not allowed"));
}
if (!req.http.X-Magento-Tags-Pattern) {
return (synth(400, "X-Magento-Tags-...
5
I assume you're not referring to Magento 2. For Magento 1.x, you can use Turpentine to let Magento work with Varnish. Fair warning, this is by no means a "plug and play" process!
Varnish does not terminate SSL connections, so you're correct that it won't work by itself for HTTPS. You can however use something like nginx or pound to handle the terminate part ...
5
Go to Admin panel -> Configuration -> Full Page Cache -> Varnish Configuration:
Use following settings:
Caching Application: Varnish Caching
TTL for public content: 86400
Access list: localhost
Backend host: IP of Varnish Server
Backend port: Public Port of Varnish Server
Hope this will help...
5
When you have Varnish cache enabled in Magento 2.x configuration, Page Cache is not active anymore, these are the only two options according to this line of code:
https://github.com/magento/magento2/blob/6ea7d2d85cded3fa0fbcf4e7aa0dcd4edbf568a6/app/code/Magento/PageCache/Model/Controller/Result/BuiltinPlugin.php#L70
5
Yes, you can run multiple Magento 2 shops with single Varnish instance.
For single Magento installation with multiple storefronts
No changes needed at all
For multiple Magento installations on the same server (unsupported)
There is no easy solution that doesn't involve hacking Magento core code. You will at minimum have to amend changes from here.
Then ...
5
I ended up reaching the #varnish channel on IRC and ask for help in case a guru helps me out.
So a guy called "guillaume" reached out and pointed out the error.
If we inspect the panic.show log on line 8 of pastebin we can see the overflow keyword.
ws = 0x7f285f09f0e0 { OVERFLOW
The rest of the message refers to the backends response.
So in the end what ...
5
After waiting on this question, I gathered some of the concept of warm and cold cache.
By caching copies of image files, CSS, and HTML documents, the origin server does not have to generate these files each time a new visitor comes to the website. This both improves page load time and decreases stress on the origin server, meaning a website can serve more ...
4
We've got something like this running in production (we're enabling or disabling add to cart and pricing depending on the customer's location).
We built and installed the "Varnish GeoIP module" from https://github.com/leed25d/geoip-vmod ... This sets a "X-GeoIP" header in each request that reaches Magento indicating the user's country. Within Magento you ...
4
Varnish and FPC can be used great together. Serve Varnish pages for those who are simply window shopping and once they become a customer (login or add an item to their cart) you switch them over to FPC.
Varnish is great for static content and FPC is great at speeding up Magento with dynamic content. Bring them together and you'll have a very good customer ...
4
I realize that this has been solved, however I ended up spending several hours troubleshooting this on my local machine while I was trying to learn Magento / Varnish / Turpentine. After much testing I came to realize that the site worked fine when I tested via telnet. Here is what I did:
Start varnish in debug mode
Attach varnish logger
Capture all the ...
4
based on the comments...
The issue is caused by the custom module admin URL.
It does not start with admin (or the configured admin key), but with a custom key like the frontend URLs.
The clean option would be to modify the module to have the admin URL start with admin. But this can be painful and time consuming.
The quick and dirty way of doing it is to ...
4
This could be caused by not correctly setting your cookie path.
Try setting your cookie settings in Admin->Configuration->Web->Session Cookie Management if not already.
Alternatively it may be a bug in varnish.
4
Yikes lots of questions here. BTW, feel free to open issues on our github as well to get help. I know lots of folks there use nginx, while I personally have little experience with it.
Do I need to change .host IP to my site public IP and .port to 80 here?
The backend should point to the IP and host where Magento is running with nginx.
do I also ...
4
If you're having issues with Magento not detecting the HTTPS redirect, you can add this to your the Magento .htaccess file located in your docroot:
############################################
## Nginx proxy HTTPS Fix for Magento
## Source: https://www.sonassi.com/blog/magento-kb/magento-https-redirect-loop-2
SetEnvIf X-Forwarded-Proto https HTTPS=on
See ...
4
In Magento 2, this error is caused because the length of cache tags is more than 8192 characters. You can fix this error by increasing http_resp_hdr_len value in varnish configuration file.
I followed this tutorial https://magentoexplorer.com/magento-2-error-503-backend-fetch-failed-how-to-fix and successfully fixed that error.
Step 1:
Depend on your OS, ...
4
The information is incorrect. All the software you mentioned can co-exist just fine on the same server.
However, note that you don't really need Memcached. If your intention to use it was for storing Magento PHP sessions - you can do the same just fine using Redis.
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