Re: PG16 walsender hangs in ResourceArrayEnlarge using pgoutput

On Wed, Jun 26, 2024 at 10:35 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Tue, Jun 25, 2024 at 5:17 PM Zhijie Hou (Fujitsu)
> <houzj.fnst@fujitsu.com> wrote:
> >
> > On Tuesday, June 25, 2024 3:53 PM Bowen Shi <zxwsbg12138@gmail.com>  wrote:
> >
> > Thanks for reporting and analyzing the issue !
> >
> > You analysis looks good to me, I think I missed to drop the newly created
> > slot when changing the logic to support row filter. Here is a small patch
> > to drop the slots in each cycle, it can fix the issue on my machine.
> >
> > IIUC, the issue exists from PG15~HEAD. The current patch can apply
> > on PG16~HEAD, If it looks ok, I will test and prepare the patch for the
> > other branch.
> >
>
> IIUC, the relevant code was added in commit
> da324d6cd45bbbcc1682cc2fcbc4f575281916af. This is a PG16 commit, so
> how can the problem occur in PG15?
>

I see that originally the slot allocation code was introduced in
commit 52e4f0cd472d39d07732b99559989ea3b615be78 but later the code
refactored in da324d6cd45bbbcc1682cc2fcbc4f575281916af. So, I agree
that we must also fix this in PG15.

--
With Regards,
Amit Kapila.