How to disable Varnish

Question

I have installed Varnish in my WordPress Ubuntu EC2 instance as described in this guide:

http://jeffreifman.com/detailed-wordpress-guide-for-aws/install-varnish/

I do have many issues with Varnish and would like to disable Varnish.

I tried to undo the steps described in the guide, e.g. setting ports from :8080 back to :80, then restarting Apache and rebooting Ubuntu. Unfortunately, since my WordPress website does no longer work after these steps, I must have missed something.

When opening my website in a browser, I get the following error message:

Error 503 Service Unavailable

Service Unavailable

Guru Meditation:

XID: 513637370

What is the correct way to disable (and even uninstall Varnish) from my WordPress installation?

https://www.varnish-cache.org/docs/3.0/tutorial/troubleshooting.html#varnish-gives-me-guru-meditation — Michael Hampton, Jan 01 '14 at 18:18
I would suggest checking apache and varnish logs, its been some time since I dealt with Varnish, a quick search lead me to this link, I hope you find this helpful. https://www.varnish-cache.org/forum/topic/818 — APZ, Jan 01 '14 at 19:32

score 7 · Accepted Answer · edited May 23 '17 at 12:41

7

if you use CentOS or Red Hat, use this:

service varnish stop

if you want to uninstall varnish, try this:

yum erase varnish

or refer to https://stackoverflow.com/questions/27739853/varnish-cache-server-error-503-service-unavailable

edited May 23 '17 at 12:41

Community

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answered Jan 06 '15 at 03:03

John Yin

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score 2 · Answer 2 · answered Jan 01 '14 at 19:49

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Looking at the message, it seems you have forgotten to change back varnish port to it's default 6081, so you should edit your /etc/default/varnish file and change VARNISH_LISTEN_PORT or the -a applicable reference.

If you want to uninstall varnish, it should be as easy as sudo apt-get remove varnish

answered Jan 01 '14 at 19:49

NITEMAN

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Folks commenting here are assuming a lot of things, in some system setups, if you stop varnish you stop your websites. – Mike Q Nov 15 '16 at 21:39

How to disable Varnish

2 Answers2