|
On Sat, Nov 15, 2003 at 05:49:19PM +0900, Kai wrote:
> Hi, list
> I am using LVS/NAT on my system.
> I set the Virutal Server by the following command.
>
> iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -o eth1 -j MASQUERADE
> /sbin/ipvsadm -A -t :80 -s wlc
> /sbin/ipvsadm -a -t 111.111.111.111:80 -r 192.168.1.11:80 -m
> /sbin/ipvsadm -a -t 111.111.111.111:80 -r 192.168.1.12:80 -m -w 2
> /sbin/ipvsadm -a -t 111.111.111.111:80 -r 192.168.1.13:80 -m
> /sbin/ipvsadm -a -t 111.111.111.111:80 -r 192.168.1.14:80 -m
> and it works fine.
>
> Today,the real server1(192.168.1.11) was down.I found the virtual server
> continued delivering the request to server1 but didn't deliver the request
> to any other server again! So the whole system seems was down from the
> client .How can I resolve the problem ?
You really need to use a third-party application to monitor
the real servers and insert and remove them from the LVS kernel
table accordingly. ldirectord and keepalived are two
good choices for this. There are others.
http://www.vergenet.net/linux/ldirectord/
http://keepalived.sourceforge.net/
--
Horms
|
