Re: speed up a logical replica setup

From: Peter Eisentraut <peter(at)eisentraut(dot)org>
To: Euler Taveira <euler(at)eulerto(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Shlok Kyal <shlok(dot)kyal(dot)oss(at)gmail(dot)com>
Cc: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, "kuroda(dot)hayato(at)fujitsu(dot)com" <kuroda(dot)hayato(at)fujitsu(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Michael Paquier <michael(at)paquier(dot)xyz>, Andres Freund <andres(at)anarazel(dot)de>, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Fabrízio de Royes Mello <fabriziomello(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>
Subject: Re: speed up a logical replica setup
Date: 2024-06-17 11:04:52
Message-ID: 3c024250-3f13-4f4d-b8e9-55f176db4abf@eisentraut.org
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On 07.06.24 05:49, Euler Taveira wrote:
> Here it is a patch series to fix the issues reported in recent
> discussions. The
> patches 0001 and 0003 aim to fix the buildfarm issues. The patch 0002
> removes
> synchronized failover slots on subscriber since it has no use. I also
> included
> an optional patch 0004 that improves the usability by checking both
> servers if
> it already failed in any subscriber check.

I have committed 0001, 0002, and 0003. Let's keep an eye on the
buildfarm to see if that stabilizes things. So far it looks good.

For 0004, I suggest inverting the result values from check_publisher()
and create_subscriber() so that it returns true if the check is ok.

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