Re: [HACKERS] Incomplete startup packet errors

On 3/3/19 3:52 PM, Tom Lane wrote:
> I wrote:
>> Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com> writes:
>>> Patch proposed by Christoph Berg is here:
>>> https://www.postgresql.org/message-id/20190228151336.GB7550%40msg.df7cb.de
>> Meh. That doesn't silence only the zero-bytes case, and I'm also
>> rather afraid of the fact that it's changing COMMERROR to something
>> else. I wonder whether (if client_min_messages <= DEBUG1) it could
>> result in trying to send the error message to the already-lost
>> connection. It might be that that can't happen, but I think a fair
>> amount of rather subtle (and breakable) analysis may be needed.
> Concretely, what about doing the following instead? This doesn't provide
> any mechanism for the DBA to adjust the logging behavior; but reducing
> log_min_messages to DEBUG1 would not be a very pleasant way to monitor for
> zero-data connections either, so I'm not that fussed about just dropping
> the message period for that case. I kind of like that we no longer need
> the weird special case for SSLdone.
>
>

Looks good to me.

cheers

andrew

--
Andrew Dunstan https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services