[Pacemaker] Service failback issue with SLES11 and HAE 11

[ben180]

Dear Dejan,

Thanks for your reply.

I reviewed the log of tibcodb2 and noticed that after step7.ServerB reboot,
ServerB CAN heard from ServerA.

The strange thing is that when ServerA reboot, ServerA CANNOT heart from
ServerB. But when ServerB reboot, ServerB CAN heard from ServerA.
Why ServerA cannot recognize ServerB, but ServerB can recognize ServerA ?
Is that means something such as a firewall or the network switch port
restrict some kind of packet to send from ServerB ?
I'm curious about the way how suse cluster nodes communicate  with each
other.
Can you point the way to shed me some light ?
Thanks.


2010/6/9 Dejan Muhamedagic <dejanmm at fastmail.fm>

> Hi,
>
> On Wed, Jun 09, 2010 at 03:27:08PM +0800, ben180 wrote:
> > Dear Dejan,
> >
> > The test sequence is:
> >
> > 1.Service is running on ServerA(tibcodb)
> > 2.The Network Cable on ServerA is pulled out
> > 3.ServerB(tibcodb2) fenced ServerA，ServerA reboot
> > 4.ServerB take over the service
> > 5.ServerA restart and the network is up
> > 6.ServerA fence ServerB and take over the service
> > 7.ServerB reboot
> >
> >
> > My question is : after step5:ServerA restart and the network is up, it
> > should not fence ServerB again but it did.
> > What happened between step5 and step6 ?
>
> According to the logs, the tibcodb never heard from the other
> node after reboot. That's strange. You sure you don't run
> firewall? Or something else preventing packets reaching the node.
>
> Thanks,
>
> Dejan
>
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