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Re: Can data node survive a couple second network interruption?
Posted by: Mikael Ronström
Date: April 25, 2016 04:29AM


Jeff Steele Wrote:
> I have a 2 node node group. I am installing a new
> switch which I will connect to the same network.
> If I simply unplug a node's cable from the old
> switch and plug it into the new one, will the node
> survive or will it shutdown due to loss of
> communications?

The answer is that it depends.
If the OS layer doesn't detect the lost connection then it
could survive dependent on how long time your heartbeat is
set to.

The nodes will discover the failure of the other node
through missing heartbeats. So by default this means
that if the connection is lost for more than 6 seconds
or so then the node will shutdown (only max one of them
will survive, the one that reaches the arbitrator first).

So most likely I would say that you will see a node failure
if you do this change.

Rgrds Mikael

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Re: Can data node survive a couple second network interruption?
April 25, 2016 04:29AM

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