Re: BUG #17073: docs - "Improve signal handling reliability"

On 2021-Jun-30, David G. Johnston wrote:

> On Wed, Jun 30, 2021 at 5:54 PM Fujii Masao <masao.fujii@oss.nttdata.com>
> wrote:

> > Since this explains the commit 2945a488a, it's better to describe
> > something like the following?

> The wording still needs some work...but is this even release note worthy?
> 
> We forget to check for interrupts before sleeping in an otherwise busy-wait
> loop.  We corrected the oversight.

Yeah, it's a good question.  I wonder if this should be back-patched, so
it'd be noted as a bugfix in the next set of minors rather than as a new
feature for 14.

(It's not a busy-wait loop, just a sleep, unless I misunderstand.)

> Most of what I'm reading says this only impacted the startup of the standby
> process; normal operations already worked correctly.  Is that correct?

Yes, because the change is in WaitForWALToBecomeAvailable().

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