Re: Postgresql 11: terminating walsender process due to replication timeout

So is there any solution to this issue?
I did try to increase the wal_sender_timeout and it broke the pub/sub.
I increased the wal_receiver_timeout and it wouldn't attempt to restart the
subscription until that time elapsed.
Due to that, the WAL segments got removed by the time it came up again and
it stopped working.
So given that the publisher is publishing at a higher rate than the
subscriber is subscribing, what can be done?

On Fri, Sep 10, 2021 at 9:26 AM Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>
wrote:

> At Thu, 9 Sep 2021 16:06:25 +0900, Abhishek Bhola <
> abhishek(dot)bhola(at)japannext(dot)co(dot)jp> wrote in
> > sourcedb:~$ postgres --version
> > postgres (PostgreSQL) 11.6
> >
> > Sorry for missing this information.
> > But looks like this fix is already included in the version I am running.
>
> Ok. I'm not sure but there may be a case where too-busy (or too poor
> relative to the publisher) subscriber cannot send a response for a
> long time. Usually keep-alive packets sent from publisher causes
> subscriber response even while busy time but it seems that if
> subscriber applies changes more than two times slower than the
> publisher sends, subscriber doesn't send a response in the timeout
> window.
>
> regards.
>
> --
> Kyotaro Horiguchi
> NTT Open Source Software Center
>

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