Can NGinx replace Varnish

António P. P. Almeida appa at
Wed Nov 14 17:39:41 UTC 2012

On 14 Nov 2012 15h31 CET, nginx-forum at wrote:

> We are using Varnish in front of 3 load balanced web servers running
> apache.  We had migrated from one hosting platform where we had 1
> app server and 1 database server using Varnish (Drupal 6.x) and had
> no issues.  Now that we are running in a load balanced environment
> (3 load balanced apache web servers, a Varnish server, and 1
> database server) we are seeing mulitple examples of cacheing
> issues. (Pages not displaying correctly issues, data input
> staying cached and used on another page, etc).

You can drop Varnish from the picture if something like microcaching
suits you or you use ngx_cache_purge with the purge module. It depends
if you have an active invalidation strategy or not. Either way Nginx
can replace Varnish and work also as load balancer. So you'll have a
simpler stack.

> We think we can just replace the Varnish server and use a NGinx
> server.  I don't want to necessarily remove all the apache servers,
> but we have to get this cacheing issue corrected....
> any thoughts...?

Yep. See above. For Drupal related Nginx issues there's a GDO group:

if want to delve deeper into the issue.

--- appa

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