From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
---|---|
To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: WIP: Failover Slots |
Date: | 2016-01-21 19:03:27 |
Message-ID: | CANP8+j+Rgz5t-Yttba1Djv56rfhs8y+Wt8YcEPaK8RYZ-V+voQ@mail.gmail.com |
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Lists: | pgsql-hackers |
On 21 January 2016 at 16:31, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Fri, Jan 1, 2016 at 7:50 PM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> > Failover Slots
> > In the current patch, any slot defined on a master will generate WAL,
> > leading to a pending-slot being present on all standby nodes. When a
> standby
> > is promoted, the slot becomes usable and will have the properties as of
> the
> > last fsync on the master.
>
> No objection to the concept, but I think the new behavior needs to be
> optional. I am guessing that you are thinking along similar lines,
> but it's not explicitly called out here.
>
I was unsure myself; but making them optional seems reasonable.
--
Simon Riggs http://www.2ndQuadrant.com/
<http://www.2ndquadrant.com/>
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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