|
I think there may be a way to overcome this but I'm afraid I don't know
it. There may be something in the archives about it. It probably
involves iptables and forwarding.
Graham
On Thu, 2005-10-06 at 11:43, Andrés Cañada wrote:
> Thankyou very much Graham. I cannot change the ip right now (actually I'm
> using that box as a mail server), but as soon as I have another one at my
> disposal, I'll let you know If that worked for me. Thanks a lot.
>
> El Jueves, 6 de Octubre de 2005 12:15, Graham David Purcocks M.A.(Oxon.)
> escribió:
> > First your english is as good as mine. If you hadn't had said I would
> > never have known.
> >
> > I think its because with LVS-DR the Real servers IP have to be on the
> > same net address. If you can change it to a 10.2.1.0 address and try
> > that.
> >
> > Graham
> >
> > On Thu, 2005-10-06 at 12:24, acanada wrote:
> > > Hi! I'm new here. I'm trying to build a lvs cluster for testing purposes.
> > > If it works fine I'll try to set up a real one, but by the moment I
> > > cannot aspire to good boxes. So there's my configuration:
> > >
> > > 2 directors:
> > > director server 10.2.1.43(Debian. VIP: 10.2.1.41)
> > > backup server 10.2.1.67(Debian. VIP: 10.2.1.41)
> > > using heartbeat (linked by only one way 10.2.1.0 by the moment because
> > > I'm just testing).
> > > 2 real servers:
> > > -realserver1: 10.2.1.38/255.255.254.0 (suse 9.2)
> > > -realserver2: 10.5.1.61/255.255.254.0 (fedora core)
> > > both with apache servers.
> > > I'm using ldirectord on both directors with this configuration file
> > > in /etc/ha.d/conf/ldirectordconfig.conf:
> > > checktimeout=20
> > > checkinterval=5
> > > autoreload=yes
> > > quiescent=no
> > > logfile="info"
> > > virtual=10.2.1.41:80
> > > real=10.5.1.61:80 gate 1 ".healthcheck.html", "OK"
> > > real=10.2.1.38:80 gate 1 ".healthcheck.html", "OK"
> > > service=http
> > > checkport=80
> > > protocol=tcp
> > > scheduler=wrr
> > > checktype=negotiate
> > > fallback=127.0.0.1:80
> > >
> > > In the real servers I run an init script like this one:
> > > #!/bin/bash
> > > VIP=10.2.1.41
> > > host=`/bin/hostname`
> > > case "$1" in
> > > start)
> > > # Start LVS-DR real server on this machine.
> > > /sbin/ifconfig lo down
> > > /sbin/ifconfig lo up
> > > echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
> > > echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
> > > echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
> > > echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
> > > /sbin/ifconfig lo:0 $VIP netmask 255.255.255.255 up
> > > /sbin/route add -host $VIP dev lo:0
> > > ;;
> > > stop)
> > > # Stop LVS-DR real server loopback device(s).
> > > /sbin/ifconfig lo:0 down
> > > echo 0 > /proc/sys/net/ipv4/conf/lo/arp_ignore
> > > echo 0 > /proc/sys/net/ipv4/conf/lo/arp_announce
> > > echo 0 > /proc/sys/net/ipv4/conf/all/arp_ignore
> > > echo 0 > /proc/sys/net/ipv4/conf/all/arp_announce
> > >
> > > ;;
> > > status)
> > > # Status of LVS-DR real server.
> > > islothere=`/sbin/ifconfig lo:0 | grep $VIP`
> > > isrothere=`netstat -rn | grep "lo:0" | grep $VIP`
> > > if [ ! "$islothere" -o ! "isrothere" ];then
> > > # Either the route or the lo:0 device
> > > # not found.
> > > echo "LVS-DR real server Stopped."
> > > else
> > > echo "LVS-DR Running."
> > > fi
> > > ;;
> > > *)
> > > # Invalid entry.
> > > echo "$0: Usage: $0 {start|status|stop}"
> > > exit 1
> > > ;;
> > > esac
> > >
> > > OK.
> > > The first time I make lynx 10.2.1.41, it works and I receive a
> > > "realserver1.html" confirmating that everything is alright. But the
> > > second time, when it's suposed to receive "realserver2.html"
> > > confirmation, I just get a
> > > Looking up 10.2.1.41
> > > Making HTTP connection to 10.2.1.41
> > > Alert!: Unable to connect to remote host.
> > > lynx: Can't access startfile http://10.2.1.41/
> > >
> > > Of course the next time it works find cause it's to work on a round robin
> > > basis.
> > > is it maybe because I'm trying to get the pages from 10.2.1.59 (the same
> > > subnet as director and realservers??
> > > How can I test if it's load balancing if I haven't got a switch to put
> > > the realservers and the directors on different net?
> > > Sure I'm asking a very easy (and stupid) question but I don't know how to
> > > follow.
> > > Sorry for my english (I'm spanish), and thanks in advance!
> > >
> > > Andrés.
> > >
> > > **NOTA DE CONFIDENCIALIDAD** Este correo electrónico, y en su caso los
> > > ficheros adjuntos, pueden contener información protegida para el uso
> > > exclusivo de su destinatario. Se prohíbe la distribución, reproducción o
> > > cualquier otro tipo de transmisión por parte de otra persona que no sea
> > > el destinatario. Si usted recibe por error este correo, se ruega
> > > comunicarlo al remitente y borrar el mensaje recibido. **CONFIDENTIALITY
> > > NOTICE** This email communication and any attachments may contain
> > > confidential and privileged information for the sole use of the
> > > designated recipient named above. Distribution, reproduction or any other
> > > use of this transmission by any party other than the intended recipient
> > > is prohibited. If you are not the intended recipient please contact the
> > > sender and delete all copies.
> > >
> > > _______________________________________________
> > > LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> > > Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> > > or go to http://www.in-addr.de/mailman/listinfo/lvs-users
>
> **NOTA DE CONFIDENCIALIDAD** Este correo electrnico, y en su caso los
> ficheros adjuntos, pueden contener informacin protegida para el uso exclusivo
> de su destinatario. Se prohbe la distribucin, reproduccin o cualquier otro
> tipo de transmisin por parte de otra persona que no sea el destinatario. Si
> usted recibe por error este correo, se ruega comunicarlo al remitente y
> borrar el mensaje recibido.
> **CONFIDENTIALITY NOTICE** This email communication and any attachments may
> contain confidential and privileged information for the sole use of the
> designated recipient named above. Distribution, reproduction or any other use
> of this transmission by any party other than the intended recipient is
> prohibited. If you are not the intended recipient please contact the sender
> and delete all copies.
>
> _______________________________________________
> LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> or go to http://www.in-addr.de/mailman/listinfo/lvs-users
--
|
