Re: BUG #13770: Extending recovery_min_apply_delay on Standby causes it to be unavailable for a while

From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Greg Clough <greg(at)gclough(dot)com>, PostgreSQL mailing lists <pgsql-bugs(at)postgresql(dot)org>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>
Subject: Re: BUG #13770: Extending recovery_min_apply_delay on Standby causes it to be unavailable for a while
Date: 2016-01-10 23:21:23
Message-ID: CAB7nPqT=cD80Z5eby_t7SJsdtEq8_ZEnMBuVBBzX=6xb5yE=2A@mail.gmail.com
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On Sat, Jan 2, 2016 at 9:14 PM, Michael Paquier
<michael(dot)paquier(at)gmail(dot)com> wrote:
> Changing my mind after more thoughts on the matter, it seems indeed
> that it would make more sense to apply delays only once the database
> has reached a consistent state to be able to do immediately
> transaction-related operations on a standby without having to wait for
> it to reach consistency for perhaps a couple of hours. Please see
> attached a patch to do that.

CF entry added here:
https://commitfest.postgresql.org/9/478/
--
Michael

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