Re: walsender termination error messages worse in v10

On Fri, Jun 02, 2017 at 11:51:26AM -0700, Andres Freund wrote:
> commit 7c4f52409a8c7d85ed169bbbc1f6092274d03920
> Author: Peter Eisentraut <peter_e(at)gmx(dot)net>
> Date: 2017-03-23 08:36:36 -0400
>
> Logical replication support for initial data copy
>
> made walreceiver emit worse messages in v10 than before when the master
> gets shut down. Before 10 you'll get something like:
>
> 2017-06-02 11:46:07.173 PDT [16143][] LOG: replication terminated by primary server
> 2017-06-02 11:46:07.173 PDT [16143][] DETAIL: End of WAL reached on timeline 1 at 0/1B7FB8C8.
> 2017-06-02 11:46:07.173 PDT [16143][] FATAL: could not send end-of-streaming message to primary: no COPY in progress
>
> the last bit is a bit superflous, but it still kinda makes sense. Now
> you get:
> 2017-06-02 11:47:09.362 PDT [17061][] FATAL: unexpected result after CommandComplete: server closed the connection unexpectedly
> This probably means the server terminated abnormally
> before or while processing the request.

[Action required within three days. This is a generic notification.]

The above-described topic is currently a PostgreSQL 10 open item. Peter,
since you committed the patch believed to have created it, you own this open
item. If some other commit is more relevant or if this does not belong as a
v10 open item, please let us know. Otherwise, please observe the policy on
open item ownership[1] and send a status update within three calendar days of
this message. Include a date for your subsequent status update. Testers may
discover new open items at any time, and I want to plan to get them all fixed
well in advance of shipping v10. Consequently, I will appreciate your efforts
toward speedy resolution. Thanks.

[1] https://www.postgresql.org/message-id/20170404140717.GA2675809%40tornado.leadboat.com