Re: Load Balancing HTTP traffic does not seem to be working.

[Francisco Gimeno <kikov@xxxxxxxxx>]

Hi..

well I don't see clearly what's your architecture... but remember..  
In the real servers you don't need ip_vs nor ldirectord nor heartbeat.
The VIP is owned by the Director Box ( ie: balancer ) that should be  
running ip_vs and ldirector and heartbeat ( if you want to have  
another Director Box for backup purposes ).
If you want to make things simpler: forget for one moment the heartbeat.

Just run ldirectord in the Director Box. In this case, you have to  
enable manually a eth0:0 ip alias in that box
balancer# ifconfig eth0:0 VIP netmask 255.255.255.255
realserver1# ifconfig lo:0 VIP netmask 255.255.255.255 ; route add - 
host VIP dev lo
realserver2# ifconfig lo:0 VIP netmask 255.255.255.255 ; route add - 
host VIP dev lo
then run ldirectord...
and see what's happening in the director with ipvsadm -L -n
You should see weight: 1 ( or whatever you have configured in  
ldirectord ) if the Server has been correctly detected, or weight: 0  
if the ldirector check failed...
BR,
Francisco Gimeno
> Yes I verified this these items below.  The lo:0 card I have is not up
> on both Machines.. Should that be the case?  The machine that is my
> ldirectory Active node and realserver is
> bosdamweb52 root]# /etc/ha.d/resource.d/LVSSyncDaemonSwap master  
> status
> master running
> (ipvs_syncmaster pid: 25685)
>
> This node is showing the apahce page.
>
> [root@bosdamweb52 root]# ip add sh
> 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
>    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>    inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
> 4: eth0: <BROADCAST,MULTICAST,ALLMULTI,UP> mtu 1500 qdisc  
> pfifo_fast qlen 1000
>    link/ether 00:30:48:80:4b:8d brd ff:ff:ff:ff:ff:ff
>    inet 172.16.60.40/24 brd 172.16.60.255 scope global eth0
>    inet 172.16.60.233/24 brd 172.16.60.255 scope global secondary eth0
> 5: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
>    link/ether 00:30:48:80:4b:8e brd ff:ff:ff:ff:ff:ff
>
>
> [root@bosdamweb53 ha.d]# ip add sh
> 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
>    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>    inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
>    inet 172.16.60.233/32 brd 172.16.60.255 scope global lo:0
> 4: eth0: <BROADCAST,MULTICAST,ALLMULTI,UP> mtu 1500 qdisc  
> pfifo_fast qlen 1000
>    link/ether 00:30:48:80:4b:da brd ff:ff:ff:ff:ff:ff
>    inet 172.16.60.41/24 brd 172.16.60.255 scope global eth0
> 5: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
>    link/ether 00:30:48:80:4b:d9 brd ff:ff:ff:ff:ff:ff
>
> Im also reading another post someone sent.
> http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.LVS- 
> NAT.html#one_network
> I currently have my default Gateway set to my Router not the director.
>
> Thanks for your continuing help on this.
>
>
>
>
>
>
>
>
> On 5/8/06, Francisco Gimeno <kikov@xxxxxxxxx> wrote:
> > hi
> >
> > the second part
> >
> > have you added the loopbacks ip in the real servers ?
> >
> > # ifconfig lo:1 172.16.60.233 netmask 255.255.255.255
> > # route add -host 172.16.60.233 dev lo
> >
> > have you configured the VirtualHost in Apache for 172.16.60.233 ?
> >
> > go to the real servers, and check there:
> > $ telnet 172.16.60.233 80
> > GET / HTTP/1.1
> > Host: HOSTNAME
> > <Enter>
> >
> >
> >
> > > Hello Francicso thanks for the response.
> > > I added another real server real=172.16.60.25:80 gate and no luck.
> > > Seems I can only access the machine that currently has the VIP
> > > established.
> > >
> > > scott
> >
> > _______________________________________________
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>
> --
> Scott Comboni
> President
> Zenplex Inc.
> 132 Pepes Farm Road Unit #6
> Milford CT, 06460