VCL 4.0 vcl_miss issue

Suyog Shirgaonkar Wed, 06 Aug 2014 21:54:13 -0700

Hi,I am&nbsp; using varnish cache server 4.0.1. I have infrastructure like 
frontend as varnish server and between varnish and web server there is one more 
varnish server placed as midgrace. I want to unset the X-Varnish&nbsp; cache 
parameter from backend response&nbsp; ie. midgrace.I have tried to achieve the 
same with below code in VCL file, but it not working:sub vcl_deliver {#Called 
before a cached object is delivered to the 
client.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.Via;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.Age;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.X-Varnish;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.X-Pad;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.X-Powered-By;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.Etag ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.Retry-After;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.X-Origin-Img-Unavailable;&nbsp;&
 nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if( resp.http.cache-control ~ 
&quot;max-age=0&quot;) 
{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 set resp.http.Expires = &quot;Thu, 01 Jan 1970 00:00:00 
GMT&quot;;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unset 
resp.http.Server;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; set 
resp.http.Server = &quot;XXXX/4.0.1&quot; 
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; #set resp. =&nbsp; 
std.log(&quot;Obj.ttl : &quot; + 
obj.ttl);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; #if (obj.hits &gt; 0) 
{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
#&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 set resp.http.X-Cache = 
&quot;TCP_HIT&quot;;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; #} else 
{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
#&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 set resp.http.X-Cache = &q
 uot;TCP_MISS&quot;;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
#}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (resp.http.X-Varnish ~ &quot; 
&quot;) 
{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 set resp.http.x-cache = 
&quot;TCP_HIT&quot;;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } else 
{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 set resp.http.x-cache = 
&quot;TCP_MISS&quot;;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return (deliver);}&nbsp;

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VCL 4.0 vcl_miss issue

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