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<p class=MsoNormal><span style='color:#1F497D'>Assuming your cache is hot
enough, you should be able to keep things going with this in recv<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> if (req.backend.healthy) {<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> set req.grace =
60s;<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> } else {<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> set req.grace =
4h;<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>If your backends all go away,
grace is what saves you, but you need the cache to be well heated.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#1F497D'>Stefan Caunter :: Senior Systems
Administrator :: TOPS<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>e: scaunter@topscms.com :: m:
(416) 561-4871<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>www.thestar.com www.topscms.com<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> varnish-misc-bounces@varnish-cache.org
[mailto:varnish-misc-bounces@varnish-cache.org] <b>On Behalf Of </b>Vitaly
Burshteyn<br>
<b>Sent:</b> June-01-10 12:28 PM<br>
<b>To:</b> varnish-misc@varnish-cache.org<br>
<b>Subject:</b> wont server from Cache<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>Hi folks,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>So I sent this post few days ago, I have
made some changes but still cant get my varnish box to server content from
cache even though it looks like it is:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>232 Client requests received<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
130 Cache hits<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
5 Cache hits for pass<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
97 Cache misses<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
99 Backend conn. success<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
3 Backend conn. failures<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
99 Fetch with Length<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
15 N struct sess_mem<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>When I shut down the web server it gives me
a 503 error.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Here is the copy of my vcl file with out
the backend info.. Any and all suggestion would be appreciated.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>sub vcl_recv {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>#set req.backend = bw;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>set req.grace = 60m;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>if (req.request == "PURGE")<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
{if (!client.ip ~ purge)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
{error 405 "Not allowed.";}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
return(lookup);}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>if (req.request != "GET"
&& req.request != "HEAD")<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
{return(lookup);}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US> if (req.http.Cache-Control ~
"no-cache")<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
{purge_url(req.url);}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>return(lookup);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>sub vcl_hit {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US> if (!obj.cacheable) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
return(pass); }}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>sub vcl_fetch {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> if (beresp.status == 500
|| beresp.status == 503 || beresp.status == 504) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
restart; }<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US> set
beresp.ttl = 600s;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
set beresp.grace = 600s;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
if (beresp.ttl < 300s) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
set beresp.ttl = 300s;}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
if (!beresp.cacheable)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
{return(pass);}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
if (beresp.http.Set-Cookie)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
{return(pass);}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:Consolas'>Vitaly
Burshteyn<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:Consolas'>Senior
Network Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:Consolas'>Broadway.com,
Theatre Direct International<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:Consolas'>729
7th Avenue<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:Consolas'>New
York, New York 10019<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:Consolas'>Phone:
212.817.9117<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:Consolas'>Cell#
917-701-5732</span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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