"Mikko Partio" <[EMAIL PROTECTED]> writes:
> This was my original intention. I'm still quite hesitant to trust the
> fencing devices ability to quarantee that only one postmaster at a time is
> running, because of the disastrous possibility of corrupting the whole
> database.
Making that guarantee is a fencing device's only excuse for existence.
So I think you should trust that a properly-implemented fence will do
what it's claimed to do.
On the other side of the coin, I have little confidence in DRBD
providing the storage semantics we need (in particular guaranteeing
write ordering). So that path doesn't sound exactly risk-free either.
regards, tom lane
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