Michael Paquier wrote:
> On Fri, Feb 7, 2014 at 3:02 PM, James Sewell <james.sew...@lisasoft.com> 
> wrote:
>> Node A could get ahead even if it has been shut down cleanly BEFORE the 
>> promotion?
>> I'd always assumed if I shut down the master the slave would be at the same 
>> point after shutdown
>> - is this incorrect?
> Yes and no. A node will wait at shutdown until all the *connected* slaves 
> have flushed necessary WALs
> to disk. But if the slave is not connected at the moment of shutdown, it 
> might not be the case.

Even if the slave is connected, there was a bug:

So you need at least 9.3.0, 9.2.5 or 9.1.10 for this to work properly.

Laurenz Albe

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