Re: [Patch] ALTER SYSTEM READ ONLY - Mailing list pgsql-hackers

From Robert Haas
Subject Re: [Patch] ALTER SYSTEM READ ONLY
Date
Msg-id CA+TgmoZrtgZCTA++wOS+=nXGPhrp6965EZorpRfyvyEpFfdWiQ@mail.gmail.com
Whole thread Raw
In response to Re: [Patch] ALTER SYSTEM READ ONLY  (Amul Sul <sulamul@gmail.com>)
Responses Re: [Patch] ALTER SYSTEM READ ONLY  ("Bossart, Nathan" <bossartn@amazon.com>)
Re: [Patch] ALTER SYSTEM READ ONLY  (Amul Sul <sulamul@gmail.com>)
List pgsql-hackers
On Mon, Oct 25, 2021 at 3:05 AM Amul Sul <sulamul@gmail.com> wrote:
> Ok, did the same in the attached 0001 patch.
>
> There is no harm in calling LocalSetXLogInsertAllowed() calling
> multiple times, but the problem I can see is that with this patch user
> is allowed to call LocalSetXLogInsertAllowed() at the time it is
> supposed not to be called e.g. when LocalXLogInsertAllowed = 0;
> WAL writes are explicitly disabled.

I've pushed 0001 and 0002 but I reversed the order of them and made a
few other edits.

I don't really see the issue you mention here as a problem. There's
only one place where we set LocalXLogInsertAllowed = 0, and I don't
know that we'll ever have another one.

-- 
Robert Haas
EDB: http://www.enterprisedb.com



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