Re: [Proposal] Fully WAL logged CREATE DATABASE - No Checkpoints

From: Dilip Kumar <dilipbalaut(at)gmail(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com>, Maciek Sakrejda <m(dot)sakrejda(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [Proposal] Fully WAL logged CREATE DATABASE - No Checkpoints
Date: 2022-03-23 15:55:10
Message-ID: CAFiTN-sV3pTt731LtWaweCoww=2DQF=hc7pHbtyJgCR-vzaBDQ@mail.gmail.com
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On Wed, Mar 23, 2022 at 9:13 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
>
> Hi,
>
> On 2022-03-23 18:49:11 +0530, Dilip Kumar wrote:
> > I think directly using smgrcreate() is a better idea instead of first
> > registering and then unregistering it. I have made that change in
> > the attached patch. After this change now we can merge creating the
> > MAIN_FORKNUM also in the loop below where we are creating other
> > fork[1] with one extra condition but I think current code is in more
> > sync with the other code where we are doing the similar things so I
> > have not merged it in the loop. Please let me know if you think
> > otherwise.
>
> FWIW, this fails tests: https://cirrus-ci.com/build/4929662173315072
> https://cirrus-ci.com/task/6651773434724352?logs=test_bin#L121
> https://cirrus-ci.com/task/6088823481303040?logs=test_world#L2377

Strange to see that these changes are making a failure in the
file_copy strategy[1] because we made changes only related to the
wal_log strategy. However I will look into this. Thanks.
[1]
Failed test 'createdb -T foobar2 foobar5 -S file_copy exit code 0'

--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com

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