Hello All,
I have been trying to upgrade my production instance of Varnish 1.1.2.
to 2.01, but I have a problem that I can't figure out in the new version.
When loading a web page with a lot of images, some of the images do not
get displayed and instead I get a 503 Service Unavailable. When looking
at my lighty logs, I don't see those requests at all. When looking at
varnishlog, I can see "vcl_call error deliver". I'm not sure what to do
to identify why those 503 are happening, they seem to be random, but
only when I have a miss. I am not having this problem with 1.1.2.
Does anyone have an idea what could be happening?
Here's an excerpt from varnishlog:
9 ReqStart c 70.83.84.29 4747 406814454
9 RxRequest c GET
9 RxURL c /starpreviews/118x118/0/0/974.jpg
9 RxProtocol c HTTP/1.1
9 RxHeader c Host: img1.sxx.com
9 RxHeader c User-Agent: Mozilla/5.0 (Windows; U; Windows NT
5.1; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4
9 RxHeader c Accept: image/png,image/*;q=0.8,*/*;q=0.5
9 RxHeader c Accept-Language: en-us,en;q=0.5
9 RxHeader c Accept-Encoding: gzip,deflate
9 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
9 RxHeader c Keep-Alive: 300
9 RxHeader c Connection: keep-alive
9 RxHeader c Referer:
http://www.sxx.com/stars/index/sex/female/list/E.html
9 RxHeader c Cookie:
__utma=57286504.1072416550.1198780078.1229275966.1229278040.29;
__utmz=57286504.1221787148.9.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none);
__utmb=57286504.5.10.1229278040; __utmc=57286504
9 VCL_call c recv lookup
9 VCL_call c hash hash
9 VCL_call c miss fetch
9 Backend c 32 default default
* 9 VCL_call c error deliver*
9 Length c 452
9 VCL_call c deliver deliver
9 TxProtocol c HTTP/1.1
9 TxStatus c 503
9 TxResponse c Service Unavailable
9 TxHeader c Server: Varnish
9 TxHeader c Retry-After: 0
9 TxHeader c Content-Type: text/html; charset=utf-8
9 TxHeader c Content-Length: 452
9 TxHeader c Date: Sun, 14 Dec 2008 18:15:22 GMT
9 TxHeader c X-Varnish: 406814454
9 TxHeader c Age: 2
9 TxHeader c Via: 1.1 varnish
9 TxHeader c Connection: close
9 ReqEnd c 406814454 1229278520.274427891 1229278522.459613085
0.000026941 2.185151100 0.000034094
9 SessionClose c error
9 StatSess c 70.83.84.29 4747 9 1 4 0 0 3 1251 15914
My configuration:
backend default {
.host = "66.152.93.60";
.port = "8082";
}
sub vcl_recv {
#We change the url:
if (req.http.host ~ "^(img0|img1|img2|img3|img).") {
set req.http.host = "imgtest.sxx.com";
}
# remove useless headers
unset req.http.Cookie;
unset req.http.Authenticate;
unset req.http.Accept;
unset req.http.Accept-Language;
unset req.http.Accept-Encoding;
unset req.http.Accept-Charset;
unset req.http.Referer;
}
My varnishstat:
http://pastebin.com/f6e5d3b97
Karl
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