[CentOS] Centos 4.4 ipvsadm problem

Jonathan Lundberg lundbej at rte.ie
Fri Nov 10 10:17:44 UTC 2006


Hi All,

Using CentOS 4.4 with ipvsadm-1.24-6.

I am using LVS/ipvsadm to load balance webservers, with about 20 VIP's 
in use.

My problem is that when I start the pulse service, all of the interfaces 
seem to appear
correctly in the output of ipvsadm -ln , but it is not possible to 
connect to them.

I discovered that the ones I _CAN_ connect to appear in the full 
ifconfig listing, while
for some reason, the ones that I can't connect to are missing from the 
output of the
ifconfig command. When I bring them up 'manually' using ifconfig after 
ipvsadm has
run, it is then possible to connect to them no problem.

This isn't very elegant, and goes against the LVS how-to, as well as 
being a bit of a
pain when you want to fail over from one LVS server to another.

Has anyone encountered a similar problem to this?

Cheers,

Jonathan
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