Changing the fetch for virtual hosts.

[Chris Johnson]

      I'm running 2.0.5.  Where would I look in the varnishlog for
TCP_HIT?  I never see anything like that in here.  And I know it's
caching because moinmoin is a time pig and the fetchs don't show in
access_log.

>  Run varnishlog against the request and confirm a TCP_HIT when making the
> second request to the different hostname.  Also confirm you do not see the
> request hit your backend webserver logfile
> 
> 
> On Mon, Feb 7, 2011 at 8:49 AM, Chris Johnson <johnson at nmr.mgh.harvard.edu>
> wrote:
>           Huh.  Well, I think I've done everything everyone said was
>       right.
>       Here's a snippet of what I have in varnish's default.vcl;
>
>       backend freesurfer {
>            .host = "127.0.0.1";
>            .port = "8080";
>       }
>
>       which happens to be the same place the default backend points to
>       because this is a different virtual host on the same server.
>
>       And in vcl_recv I have;
>
>          if (req.http.host ~ "^sufer.nmr.mgh.harvard.edu") {
>            set req.http.host = "www.freesurfer.net";
>            set req.backend = freesurfer;
>          }
>
>       which referenes my backend declaration and rewrites the header
>       host
>       name.
>
>           How do I tell if this is working?  Remember, I'm trying to
>       make
>       the old virtual host references to sufer.nmr.mgh.harvard.edu be
>       keyed
>       on and fetch from the new virtual host www.freesurfer.net so
>       varnish
>       doesn't cache everything twice.
>
>           Varnich didn't complain when I restarted it and seems to be
>       caching.  I'm just not sure what at this point.
>
>             On Fri, Feb 4, 2011 at 5:17 PM, Chris Johnson
>             <johnson at nmr.mgh.harvard.edu> wrote:
>                   On Fri, 4 Feb 2011, Per Buer wrote:
>
>                              if (req.http.host ~
>                         "^www.example.com") {
>                                set req.backend =
>                         foo;
>                              }
> 
>
>                       Which goes in vcl_recv and in his
>                   case foo is a backend declaration
>                   function that sets up .host and .port
>                   for the virtual host I want, yes?
> 
>
>             Almost. foo is here a declared backend - declared
>             with the keyword
>             "backend" -
>             http://www.varnish-cache.org/docs/trunk/tutorial/backend_servers.html
> 
> 
> 
> 
>
>             --
>             Per Buer, Varnish Software
>             Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 /
>             Skype: per.buer
>             Varnish makes websites fly!
>             Want to learn more about Varnish?
>             http://www.varnish-software.com/whitepapers
> 
> 
> 
> 
> ---------------------------------------------------------------------------
> ----
> Chris Johnson               |Internet: johnson at nmr.mgh.harvard.edu
> Systems Administrator       |Web:    
>  http://www.nmr.mgh.harvard.edu/~johnson
> NMR Center                  |Voice:    617.726.0949
> Mass. General Hospital      |FAX:      617.726.7422
> 149 (2301) 13th Street      |Man's a kind of missing link
> Charlestown, MA., 02129 USA |fondly thinking he can think.  Piet Hein
> 
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-------------------------------------------------------------------------------
Chris Johnson               |Internet: johnson at nmr.mgh.harvard.edu
Systems Administrator       |Web:      http://www.nmr.mgh.harvard.edu/~johnson
NMR Center                  |Voice:    617.726.0949
Mass. General Hospital      |FAX:      617.726.7422
149 (2301) 13th Street      |Life n, something from which nobody escapes
Charlestown, MA., 02129 USA |alive.  Me
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