On 28/02/14 04:17 AM, TRIBOLET Thomas wrote:
Hi,
I have taken a look at the documentation about booth. The problem is that it
need a third independent arbitrator on a third connection that I don't have,
which will grant or remove ticket.
My idea about fencing is to send an ssh command to reboot the server or just
corosync but only from one server.
When there is a network problem :
With my constraint on ping I can assume that only one server will be running
openvpn.
When network is back node1 will restart node2 to avoid problem.
Do you think that could work ?
I know it's dirty but I don't have another idea.
And how can I configure this sort of fencing on only one server ?
Thanks
You can't assume anything. To do so is to risk a split-brain, that's the
whole goal of fencing; It takes the guess work out. It allows the node
to say, for sure, that the peer is in a known state. As soon as you
guess, you risk problems.
Back to the original problem, you have a single point of failure in the
WAN link between the nodes. It is impossible to distinguish a WAN
failure from a site destruction.
--
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?
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