RE: Logical replication timeout problem

On Wed, Jan 18, 2023 at 13:29 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> On Tue, Jan 17, 2023 at 6:41 PM Ashutosh Bapat
> <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com> wrote:
> >
> > On Tue, Jan 17, 2023 at 3:34 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> >
> > > >
> > > > I am a bit worried about the indirections that the wrappers and hooks
> > > > create. Output plugins call OutputPluginUpdateProgress() in callbacks
> > > > but I don't see why ReorderBufferProcessTXN() needs a callback to
> > > > call OutputPluginUpdateProgress.
> > > >
> > >
> > > Yeah, I think we can do it as we are doing the previous approach but
> > > we need an additional wrapper (update_progress_cb_wrapper()) as the
> > > current patch has so that we can add error context information. This
> > > is similar to why we have a wrapper for all other callbacks like
> > > change_cb_wrapper.
> > >
> >
> > Ultimately OutputPluginUpdateProgress() will be called - which in turn
> > will call ctx->update_progress.
> >
>
> No, update_progress_cb_wrapper() should directly call
> ctx->update_progress(). The key reason to have a
> update_progress_cb_wrapper() is that it allows us to add error context
> information (see the usage of output_plugin_error_callback).

I think it makes sense. This also avoids the need for every output plugin to
implement the callback. So I tried to improve the patch based on this approach.

And I tried to add some comments for this new callback to distinguish it from
ctx->update_progress.

Attach the new patch.

Regards,
Wang Wei