Thanks, Matt. I'll try the packet sniffer next. Meanwhile, I narrowed the problem down to virtual hosts. Here's the http.conf on each server: ... ServerName mydomain.com:80 ... NameVirtualHost *:80 # redirect mydomain.com to www.mydomain.com # has to match ServerName above <VirtualHost *:80> Redirect permanent / http://www.mydomain.com/ ServerName mydomain.com </VirtualHost> # provide webroot for the above redirect <VirtualHost *:80> DocumentRoot /var/www/public_html ServerName www.mydomain.com </VirtualHost> # allow partner1.mydomain.com to work <VirtualHost *:80> DocumentRoot /var/www/partner1 ServerName partner1.mydomain.com </VirtualHost> ... So, this makes 10% of the requests fail. If I comment out all of the virtual host stuff above, everything works (but then, of course, I don't get canonical hostname or partner1 to work). Anton --- matt farey <matt.farey@xxxxxxxxx> wrote: > > anton wrote: > > Thanks, Krist. I thought that it should work in > > theory too, but it doesn't in practice :( > Basically, > > about 10% of requests to www.mydomain.com fail > (time > > out) if I set the servernames to www.mydomain.com > for > > both servers and then try to use VirtualHosts. We > > have to use virtualhosts because we need things > like > > partner1.mydomain.com and partner2.mydomain.com. > > > > I am not sure what to do at this point. > > > > Anton > > > > --- Krist van Besien <krist.vanbesien@xxxxxxxxx> > > wrote: > > > > > >> On 3/8/07, anton <way_uhf@xxxxxxxxx> wrote: > >> > >>> Hi there, > >>> > >>> I'm a decently experienced apache user on ONE > >>> webserver. I'm trying to switch to two apache > >>> > >> servers > >> > >>> behind a Foundry hardware load balancer. > >>> > >>> I need a tutorial which would explain how to > >>> > >> configure > >> > >>> multiple apache servers behind a hardware load > >>> balancer. > >>> > >>> I have a domain name correctly resolving to the > >>> balancer's ip and the balancer correctly > >>> > >> forwarding > >> > >>> the requests to each server. That's working > fine. > >>> Things get confusing when I try to configure > each > >>> server's ServerName and virtual hosts. > >>> > >>> Any help would be greatly appreciated. > >>> > >> You just need to make sure each server has the > >> server name that the > >> client sees. So if you have > >> www.mydomain.com > >> and this resolves correctly to the loadbalancer > than > >> you just need to have > >> ServerName www.mydomain.com > >> in your config on each server. > >> > >> In theory you could even run each webserver with > the > >> same httpd.conf. > >> > >> Krist > >> > >> -- > >> krist.vanbesien@xxxxxxxxx > >> Bremgarten b. Bern, Switzerland > >> -- > >> A: It reverses the normal flow of conversation. > >> Q: What's wrong with top-posting? > >> A: Top-posting. > >> Q: What's the biggest scourge on plain text email > >> discussions? > >> > >> > >> > > > --------------------------------------------------------------------- > > > >> The official User-To-User support forum of the > >> Apache HTTP Server Project. > >> See <URL:http://httpd.apache.org/userslist.html> > for > >> more info. > >> To unsubscribe, e-mail: > >> users-unsubscribe@xxxxxxxxxxxxxxxx > >> " from the digest: > >> users-digest-unsubscribe@xxxxxxxxxxxxxxxx > >> For additional commands, e-mail: > >> users-help@xxxxxxxxxxxxxxxx > >> > >> > >> > > > > > > > --------------------------------------------------------------------- > > The official User-To-User support forum of the > Apache HTTP Server Project. > > See <URL:http://httpd.apache.org/userslist.html> > for more info. > > To unsubscribe, e-mail: > users-unsubscribe@xxxxxxxxxxxxxxxx > > " from the digest: > users-digest-unsubscribe@xxxxxxxxxxxxxxxx > > For additional commands, e-mail: > users-help@xxxxxxxxxxxxxxxx > > > > > > > this might sound silly, but since neither backend > server needs DNS, do > you have hostname lookups off, do you have all your > vhosts of the form > <vhost ip:port> > servername www.mydomain.com > </vhost> > rather than > <vhost www.mydomain.com:port> > servername www.mydomain.com > </vhost> > could this be a hosts or DNS issue, a throw over > from when things > referred to different NICs/IPs, have you tried a > packet sniffer like > wireshark - my answer to almost every apache > debuggering session, and > tried to see why those tcp requests aren't > happening, or whether its a > http issue? > ignore me if I'm barking incoherently. > matt > > > > --------------------------------------------------------------------- > The official User-To-User support forum of the > Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for > more info. > To unsubscribe, e-mail: > users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: > users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: > users-help@xxxxxxxxxxxxxxxx > > --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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