Re: [Patch] ALTER SYSTEM READ ONLY

From: Amul Sul <sulamul(at)gmail(dot)com>
To: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>
Cc: Prabhat Sahu <prabhat(dot)sahu(at)enterprisedb(dot)com>, Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [Patch] ALTER SYSTEM READ ONLY
Date: 2021-04-05 11:57:17
Message-ID: CAAJ_b95jbu27ykXTmtLU3kSpy50A1HogjUj-45Q1+fv6tjvMow@mail.gmail.com
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On Mon, Apr 5, 2021 at 4:45 PM Bharath Rupireddy
<bharath(dot)rupireddyforpostgres(at)gmail(dot)com> wrote:
>

Thanks Bharath for your review.

> On Mon, Apr 5, 2021 at 11:02 AM Amul Sul <sulamul(at)gmail(dot)com> wrote:
> >
> > Attached is the rebase version for the latest master head(commit # 9f6f1f9b8e6).
>
> Some minor comments on 0001:
> Isn't it "might not be running"?
> + errdetail("Checkpointer might not running."),
>

Ok, fixed in the attached version.

> Isn't it "Try again after sometime"?
> + errhint("Try after sometime again.")));
>

Ok, done.

> Can we have ereport(DEBUG1 just to be consistent(although it doesn't
> make any difference from elog(DEBUG1) with the new log messages
> introduced in the patch?
> + elog(DEBUG1, "waiting for backends to adopt requested WAL
> prohibit state change");
>

I think it's fine; many existing places have used elog(DEBUG1, ....) too.

Regards,
Amul

Attachment Content-Type Size
v24-0001-Implement-wal-prohibit-state-using-global-barrie.patch application/x-patch 52.5 KB
v24-0003-Documentation.patch application/x-patch 10.3 KB
v24-0002-Error-or-Assert-before-START_CRIT_SECTION-for-WA.patch application/x-patch 69.9 KB

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