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malalon@xxxxxxxxxxxxxx wrote:
> When I run rc.lvs_nat on RS it says: "the path to the director's default gw
> does not go through the director", but when I run traceroute everything looks
> ok (see below).
>
please adjust your mailer.
You don't have carriage returns in your paragraphs and each paragraph is one
line and goes off the right side of my screen.
> What is the problem, can anyone help me?
sometime, please upgrade to configure-v0.9.
It won't change your problem here, but it will make
it easier for me to diagnose problems.
> 3. a route to the director is not good enough, it won't work, the director
> must be the default gw.
> 4. the realservers must not have any other routes to the client.
> (Some routing problems are fixed by rerunning the script.)
>
> To help debug the problem, here's the output of netstat -rn
> Kernel IP routing table
> Destination Gateway Genmask Flags MSS Window irtt Iface
> 192.168.1.2 0.0.0.0 255.255.255.255 UH 0 0 0 eth0
> 192.168.1.0 0.0.0.0 255.255.255.128 U 0 0 0 eth0
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
> 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
>
> *****************************************************
>
> Traceroute -n -s 192.168.1.2 194.29.167.126
>
> 1 192.168.1.1 0.646 ms 0.475 ms 0.465 ms
> 2 194.29.167.126 2.511 ms 1.690 ms 1.670 ms
the configure script tests if packets to the director_gw from
the realserver go through the director. It does this using
traceroute and grep to look for 2 hops. If there are other routes
to the director_gw then the script will see 1 hop. The output
of traceroute here shows 2 hops, so I expect that the script has
failed in parsing your traceroute output. It is likely that your
LVS is setup correctly. I would run the rc.lvs_nat file
on the director and then the realservers and just try your LVS to
see if it works.
I would suspect my script at this stage.
Can you let me know what happens? And on the machine that
produces this failure message, can you send me
(off-line to jmack@xxxxxxxx) the output from
$sh -x rc.lvs_nat > rc.lvs_nat.out 2>&1
Thanks
Joe
--
Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
contractor to the National Environmental Supercomputer Center,
mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA
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