[ClusterLabs] Is fencing really a must for Postgres failover?

[Jehan-Guillaume de Rorthais]

On Wed, 13 Feb 2019 22:11:50 +0300
Andrei Borzenkov <arvidjaar at gmail.com> wrote:

> 13.02.2019 15:50, Maciej S пишет:
> > Can you describe at least one situation when it could happen?
> > I see situations where data on two masters can diverge but I can't find the
> > one where data gets corrupted.   
> 
> If diverged data in two databases that are supposed to be exact copy of
> each other is not corruption, I'm afraid it will be hard to find
> convincing example ...

The one I gave earlier is a real, existing, one.

And the nightmare of a splitbrain in a database env is real as well, but I'm
sure it exists some scenarios where it doesn't matter much to drop some data to
reconsolidates both nodes faster.