Re: Hot Standby on git - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: Hot Standby on git
Date
Msg-id 1254474823.17864.326.camel@ebony.2ndQuadrant
Whole thread Raw
In response to Re: Hot Standby on git  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
List pgsql-hackers
On Fri, 2009-10-02 at 11:26 +0300, Heikki Linnakangas wrote:
> Simon Riggs wrote:
> > On Fri, 2009-10-02 at 10:43 +0300, Heikki Linnakangas wrote:
> > 
> >> It seems dangerous to write a WAL record after the shutdown checkpoint.
> >> It will be overwritten by subsequent startup, which is a recipe for trouble.
> > 
> > I've said its a corner case and not worth spending time on. I'm putting
> > it in at your request. If it's not correct before and not correct after,
> > where exactly do you want it?
> 
> I don't know. Perhaps it should go between the REDO pointer of the
> shutdown checkpoint and the checkpoint record itself. 

That would seem minimally invasive approach and would appear to work for
both cases. Will do.

-- Simon Riggs           www.2ndQuadrant.com



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