Re: is there a warm standby sync trigger?

On Fri, Oct 24, 2014 at 8:01 PM, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
wrote:

> On Fri, Oct 24, 2014 at 12:30 AM, John Smith <jayzee(dot)smith(at)gmail(dot)com>
> wrote:
> >
> > i want to setup a warm standby that listens 24/7 but only syncs when
> > told to (ie only when i am ok with the database updates, will i
> > trigger the sync).
> > can i?
> >
> > i don't want to manually backup and restore like i do now.
>
> That's what pause_at_recovery_target is aimed for:
> http://www.postgresql.org/docs/devel/static/recovery-target-settings.html
> Simply set up the recovery target you want to check, and use
> pause_at_recovery_target to put the standby in a latent state you can
> check. If the state of your server does not satisfy your needs,
> shutdown the server and change the target. Note that operations are
> not backward btw.

If you were using hot-standby, you could have used* pg_pause_recovery() /
pg_resume_recovery()*​

​To pause when needed and continue later. e.g. when you are doing bulk
loads or during a window when you see network congestion. ​

Best Regards,

*Sameer Kumar | Database Consultant*

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