Re: Varnish Serves only uncompressed objects if they are requested first

2008-12-04 Thread Jeff Anderson 
Our app servers are sending the Vary on the Accept-Encoding when  
compression is requested.  If compression is not requested they do not  
perform the Vary.  Does that mean we should find a way to send a Vary:  
Accept-Encoding:  null,gzip,deflate or something?  Is there a 'no  
compression' accept-encoding header?


On Dec 2, 2008, at 10:36 PM, Per Buer wrote:

 Jeff Anderson skrev:
 It looks like if the first requested page is for an uncompressed page
 varnish will only deliver the uncompressed page from cache even if a
 compressed page is requested.

 As long as you don't Vary: on the Accept-Encoding I guess that is
 expected. Varnish doesn't not understand the Accept-Encoding header.

 (..)
 What could be causing this?  The only way to fix appears to be to add
 the lines below:

 sub vcl_hash {
 if (req.http.Accept-Encoding ~ gzip || req.http.Accept-Encoding ~
 deflate) {
   set req.hash += req.http.Accept-Encoding;
 }

 Either use the fix you suggested or add a Vary: Accept-Encoding on the
 backend.

 -- 
 Per Buer - Leder Infrastruktur og Drift - Redpill Linpro
 Telefon: 21 54 41 21 - Mobil: 958 39 117
 http://linpro.no/ | http://redpill.se/

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Re: [varnish] Re: Varnish Serves only uncompressed objects if they are requested first

2008-12-04 Thread Ricardo Newbery 


Your app server should set the Vary on *all* responses if *any*  
response can vary.

Ric



On Dec 4, 2008, at 11:59 AM, Jeff Anderson wrote:

 Our app servers are sending the Vary on the Accept-Encoding when
 compression is requested.  If compression is not requested they do not
 perform the Vary.  Does that mean we should find a way to send a Vary:
 Accept-Encoding:  null,gzip,deflate or something?  Is there a 'no
 compression' accept-encoding header?


 On Dec 2, 2008, at 10:36 PM, Per Buer wrote:

 Jeff Anderson skrev:
 It looks like if the first requested page is for an uncompressed  
 page
 varnish will only deliver the uncompressed page from cache even if a
 compressed page is requested.

 As long as you don't Vary: on the Accept-Encoding I guess that is
 expected. Varnish doesn't not understand the Accept-Encoding header.

 (..)
 What could be causing this?  The only way to fix appears to be to  
 add
 the lines below:

 sub vcl_hash {
 if (req.http.Accept-Encoding ~ gzip || req.http.Accept-Encoding ~
 deflate) {
  set req.hash += req.http.Accept-Encoding;
 }

 Either use the fix you suggested or add a Vary: Accept-Encoding on  
 the
 backend.

 -- 
 Per Buer - Leder Infrastruktur og Drift - Redpill Linpro
 Telefon: 21 54 41 21 - Mobil: 958 39 117
 http://linpro.no/ | http://redpill.se/

 ___
 varnish-misc mailing list
 varnish-misc@projects.linpro.no
 http://projects.linpro.no/mailman/listinfo/varnish-misc

 ___
 varnish-misc mailing list
 varnish-misc@projects.linpro.no
 http://projects.linpro.no/mailman/listinfo/varnish-misc

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varnish-misc mailing list
varnish-misc@projects.linpro.no
http://projects.linpro.no/mailman/listinfo/varnish-misc