Joseph Mack NA3T wrote:
On Fri, 20 Oct 2006, Jonathan Lundberg wrote:
We have discovered that the problematic VIP's appear in ipvsadm -l
output, but the corresponding interface does not appear in ifconfig
output on the LVS server/director.
ifconfig doesn't see IPs configured with iproute2 tools. You should
forget ifconfig for anything but leaf machines
BTW piranha is a RedHat product, not part of the LVS project
Joe
Hi,
I'm afraid I'm not a linux kernel ip/routing expert by any stretch of
the imagination, I'm just
an LVS end user.
Under normal circumstances, when I start pulse, any VIP->Real mapping
that I see in
ipvsadm -l output also seems to have a corresponding device listed in
ifconfig output.
The difficulty I am having now, is that when I start pulse, I can see
the full list of VIP->Real
mappings in ipvsadm -l output, as if they are functioning correctly.
However, I am not able
to connect to some random VIP's even though they are listed, I get a
connection refused
or no route to host error. I discovered that when I run ifconfig, the
ones that DO work and
that I CAN connect to, are listed as eth0:X devices in ifconfig output,
but the VIP's that I
cannot connect to are NOT listed. If I run "ifconfig eth0:X w.x.y.z
netmask a.b.c.d" on the
command line, THEN I am able to connect to the VIP's and they function fine.
I don't want to have to resort to writing a script that runs ifconfig
commands for every
VIP when I restart pulse just to get it working.
Has anybody seen this behaviour before? You say ifconfig doesn't see
IP's configured
with iproute2 tools, but all I know is that when I start pulse in
CentOS, I _DO_ see ifconfig
device entries for every VIP (or at least, the ones that work!)
Thanks,
Jonathan.
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