[ClusterLabs] Recovering after split-brain
nikhil.subscribed at gmail.com
Wed Jun 22 01:09:02 EDT 2016
We are not using virtual IP. There is a separate discovery mechanism
between the server and client. The client will reach out to new server only
if it is incommunicado with the old one.
On Tue, Jun 21, 2016 at 8:27 PM, Dmitri Maziuk <dmitri.maziuk at gmail.com>
> On 2016-06-20 17:19, Digimer wrote:
> Nikhil indicated that they could switch where traffic went up-stream
>> without issue, if I understood properly.
> They have some interesting setup, but that notwithstanding: if split brain
> happens some clients will connect to "old master" and some: to "new
> master", dep. on arp update. If there's a shared resource unavailable on
> one node, clients going there will error out. The other ones will not. It
> will work for some clients.
> Cf. both nodes going into stonith deathmatch and killing each other: the
> service now is not available for all clients. What I don't get is the
> blanket assertion that this "more highly" available that option #1.
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