You want to have two nodes separated by Internet topology? Sure,
there's no problem with that. Why wouldn't you be able to use the same
setup?
The problem is, it's very, _very_ easy to end up with a split brain
condition. If anything at all out of the ordinary happens to the
connectivity between the two sites - e.g. route flaps, congestion,
unusually high latency, outages - it's very easy for the two nodes to
think the other died.
Nagaraja, Madhukar (Madhukar) wrote:
Hello,
There is a requirment for us to have 2 node HA, but the thing is each of the
node will be in a different location. I guess they can communicate thru WAN and
the IP address will be pingable to the other. One will be active and the other
passive. Only when one goes down the other node in a diff location will take
over. I had prototyped a 2 node HA with both the nodes on the same LAN. But now
they want it in different locations. Can I use the same thing for this or do I
need to use quorum or some other mechanism ??
If quorum, can you please point out to some info who have done this ? I
searched the net but could not get anything which could answer me.
Please let me know.
Thanks.
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Alex Balashov
Evariste Systems
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