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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Michael Paquier <michael@paquier.xyz>
Cc: Thomas Munro <thomas.munro@gmail.com>
Cc: Noah Misch <noah@leadboat.com>
Cc: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Cc: exclusion@gmail.com
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17928: Standby fails to decode WAL on termination of primary
Date: Fri, 11 Aug 2023 20:32:00 -0400
Message-ID: <351991.1691800320@sss.pgh.pa.us> (raw)
In-Reply-To: <ZNbQUDcZK0ELn1o9@paquier.xyz>
References: <72bd036d-4f2a-8d50-b56e-6b1e3b9ba0a9@gmail.com>
	<CA+hUKG+t8gfYBS2TRMW6rHaWUBEC1Cy+p-0pgPBx8ag8TBeoKw@mail.gmail.com>
	<20230710200012.GB3476234@rfd.leadboat.com>
	<20230711.155414.939136339819647605.horikyota.ntt@gmail.com>
	<20230717004905.GE3826297@rfd.leadboat.com>
	<ZNSVlR/v8gTDIMsU@paquier.xyz>
	<20230811025808.GA2261232@rfd.leadboat.com>
	<ZNXQWvnmt1Fpt6vu@paquier.xyz>
	<20230811140008.GB2261449@rfd.leadboat.com>
	<CA+hUKGLEF7-bK3=KFYfaDMOh8wy2XdMOncbUrn=JrhmjX0_vPQ@mail.gmail.com>
	<ZNbQUDcZK0ELn1o9@paquier.xyz>

Michael Paquier <michael@paquier.xyz> writes:
> On Sat, Aug 12, 2023 at 11:56:45AM +1200, Thomas Munro wrote:
>> On Sat, Aug 12, 2023 at 2:00 AM Noah Misch <noah@leadboat.com> wrote:
>>> I recall earlier messages theorizing that it was just harder to hit in v14, so
>>> I'm disinclined to stop at v15.  I think the main choice is whether to stop at
>>> v11 (normal choice) or v12 (worry about breaking the last v11 point release).
>>> I don't have a strong opinion between those.

> Okay.  I wouldn't be inclined to patch v11 for that, FWIW, as this
> code path is touched by recovery and more.  At least it does not seem 
> worth taking any risk compared to the potential gain.

That was my gut reaction too -- risk/reward seems not great for the
last v11 release.  (I've been burned a couple of times now by putting
can't-fix-it-anymore bugs into the final release of a branch, so maybe
I'm just being overly paranoid.  But it's something to worry about.)

			regards, tom lane





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