On Tue, Dec 27, 2022 at 11:42 AM Dilip Kumar <dilipbal...@gmail.com> wrote: > > On Tue, Dec 27, 2022 at 9:33 AM Amit Kapila <amit.kapil...@gmail.com> wrote: > > > > > > > BTW, the blocking problem with this patch is to deal with shutdown as > > discussed in the thread [1]. > > I will have a look. >
Thanks! > In short, the problem is that at > > shutdown, we wait for walsender to send all pending data and ensure > > all data is flushed in the remote node. But, if the other node is > > waiting due to a time-delayed apply then shutdown won't be successful. > > It would be really great if you can let us know your thoughts in the > > thread [1] as that can help to move this work forward. > > Okay, so you mean to say that with logical the shutdown will be > delayed until all the changes are applied on the subscriber but the > same is not true for physical standby? Right. > Is it because on physical > standby we flush the WAL before applying? > Yes, the walreceiver first flushes the WAL before applying. -- With Regards, Amit Kapila.
