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wangzhg at capitel

Sep 18, 2002, 6:09 PM

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clay at dawning

Sep 18, 2002, 6:55 PM

Post #2 of 4 (534 views)
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On Thu, Sep 19, 2002 at 09:09:29AM +0800, Robby Wang wrote:
> hi,
> a problem occurs when using heartbeat to switch between two machines on which heatbeating are running.
> their ip address are 172.16.11.1 and 172.16.11.2,named ha1 and ha2 respectively. and I defined "HA1 172.16.11.1" as the
> only resource. everythings seems working properly except when i set the interface eth0 on which 11.1 is binded down by using the
> command "ifconfig eth0 down"(i am using a later version of redhat linux 7.2) but heartbeat doesn't work ,nothing had happened! 11.2 hadn't substitute the ip of 11.1 ,why? if i changed 11.1 to 11.2 ,things will be okay.
It's sure that nothing'll happen if you're doing heartbeat over a serial
line or both a serial and NIC.

Please at least show us your ha.cf, and give more detail in the
subject of your mail, or nobody can help you.

If my guess is right, what you may need is ipfail, about which
there've been quite some discussions in this list. Use the list archive
to find more.

Clay

--

Isaac Claymore /"\ ASCII Ribbon Campaign
Dawning Inc. \ / Respect for open standards
Beijing, China X No HTML/RTF in email
http://www.dawning.com.cn / \ No M$ Word docs in email

alanr at unix

Sep 18, 2002, 10:15 PM

Post #3 of 4 (539 views)
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Robby Wang wrote:
> hi,
>
> a problem occurs when using heartbeat to switch between two machines
> on which heatbeating are running.
>
> their ip address are 172.16.11.1 and 172.16.11.2,named ha1 and ha2
> respectively. and I defined "HA1 172.16.11.1" as the
>
> only resource. everythings seems working properly except when i set the
> interface eth0 on which 11.1 is binded down by using the
>
> command "ifconfig eth0 down"(i am using a later version of redhat linux
> 7.2) but heartbeat doesn't work ,nothing had happened! 11.2
> hadn't substitute the ip of 11.1 ,why? if i changed 11.1 to 11.2 ,things
> will be okay.

I'm not sure I understand what you're doing, and what you're having problems
with.

You cannot define an address which you've configured in with the OS startup
procedures as a resource in haresources. It says that clearly in the
documentation, and it also gives a message when you start up. It sounds
like that's what you're doing.

Why are you trying to take the working interface down?

-- Alan Robertson
alanr[at]unix.sh

rajat_tiwary at yahoo

Sep 18, 2002, 10:41 PM

Post #4 of 4 (537 views)
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hi..

i think your are trying to test heartbeat ( correct me
if am wrong! ) .. failover of node ha1 to ha2 by
taking down the ethernet interface of ha1 node on
which the haresource ip is configured.. so you are
issuing the command "ifconfig eth0 down"

Alan is right that you cannot configure the interface
ip as your haresource .. it is clearly stated in the
docs!!!

so if you have

ha1 : 172.16.11.1
ha2 : 172.16.11.2

you should configure the haresouce ip something as
172.16.11.3.. think of it as a cluster ip / service ip
.. and this is the ip on which your services will
run!!!

the ha.cf.. it needs to be same on both the nodes as
stated in the docs clearly ..

on a curious note .. has anybody noticed that if you
do ( on Redhat 7.x )
ifconfig ethx down

and then you do
ifconfig -a

you can still see that interface and the ip configured
though the interface is down and it doesnt work!!! it
may sound silly but any idea why does this happen ?

Rajat

--- Alan Robertson <alanr[at]unix.sh> wrote:
> Robby Wang wrote:
> > hi,
> >
> > a problem occurs when using heartbeat to switch
> between two machines
> > on which heatbeating are running.
> >
> > their ip address are 172.16.11.1 and
> 172.16.11.2,named ha1 and ha2
> > respectively. and I defined "HA1 172.16.11.1"
> as the
> >
> > only resource. everythings seems working properly
> except when i set the
> > interface eth0 on which 11.1 is binded down by
> using the
> >
> > command "ifconfig eth0 down"(i am using a later
> version of redhat linux
> > 7.2) but heartbeat doesn't work ,nothing had
> happened! 11.2
> > hadn't substitute the ip of 11.1 ,why? if i
> changed 11.1 to 11.2 ,things
> > will be okay.
>
> I'm not sure I understand what you're doing, and
> what you're having problems
> with.
>
> You cannot define an address which you've configured
> in with the OS startup
> procedures as a resource in haresources. It says
> that clearly in the
> documentation, and it also gives a message when you
> start up. It sounds
> like that's what you're doing.
>
> Why are you trying to take the working interface
> down?
>
> -- Alan Robertson
> alanr[at]unix.sh
>

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