Varnish Questions

[Jack Tuhman]

Hello list,

I was about to setup another squid install for a drupal site that is going
to be getting some high traffic and I found varnish.  I think that product
is really great but I am having some issues.


First hardware.
I have varnish and the web server running on the same quad core dual xeon
box 8gb of ram on debian.  I have used the debian package to install varnish
and it installed  version1.0.2-2

There is a database for the site running on another box.

Here are my 2 questions, I hope someone out there can point me in the right
direction.

1. connection reset issues
I ran
 siege -c 250 -r 1000 -i -d 1 http://<myip>

This is a sample of the output I get
HTTP/1.1 200   0.41 secs:    5548 bytes ==> /
HTTP/1.1 200   0.41 secs:    5548 bytes ==> /
HTTP/1.1 200   0.42 secs:    5548 bytes ==> /
HTTP/1.1 200   0.41 secs:    5548 bytes ==> /
Error: socket: read error Connection reset by peer sock.c:455: Connection
reset by peer
Error: socket: read error Connection reset by peer sock.c:455: Connection
reset by peer
Error: socket: read error Connection reset by peer sock.c:455: Connection
reset by peer
Error: socket: read error Connection reset by peer sock.c:455: Connection
reset by peer
Error: socket: read error Connection reset by peer sock.c:455: Connection
reset by peer
HTTP/1.1 200   1.17 secs:    5548 bytes ==> /
HTTP/1.1 200   1.94 secs:    5548 bytes ==> /
HTTP/1.1 200   0.63 secs:    5548 bytes ==> /
HTTP/1.1 200   0.63 secs:    5548 bytes ==> /
HTTP/1.1 200   0.62 secs:    5548 bytes ==> /

At the end of the run I get Availability of around 45%  If I run  siege
directly to the webserver, I get an Availability of 98%. (it also takes
longer)

2. caching pages
I have updated content on my main site, and would like to clear the varnish
cache,  I telnet into the management interface and run purge * (I also tried
purge *. , purge .* , purge *.*) I then clear my browser cache, and refresh
the page, I get the old page.  If I visit the server directly, I get the new
page?


Below is my vcl.conf file I have comment out the cookie part because I would
like it to pass those requests to the webserver.  (I guess it could cache
the front page)


backend default {
        set backend.host = "10.10.0.10";
        set backend.port = "81";
}

sub vcl_recv {
        if (req.request == "POST") {
                pipe;
        }

        # force lookup even when cookies are present
#        if (req.request == "GET" && req.http.cookie) {
#                lookup;
#        }
 if (req.request == "GET" && req.url ~ "\.(gif|jpg|swf|css|js)$") {
    lookup;
 }
}

sub vcl_fetch {
        # force minimum ttl of 180 seconds
        if (obj.ttl < 180s) {
                set obj.ttl = 180s;
        }
}


Thanks for any help someone can give.
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