From: "Tom Lane" <tgl@sss.pgh.pa.us>
> No. They are FATAL so far as the individual session is concerned.
> Possibly some documentation effort is needed here, but I don't think
> any change in the code behavior would be an improvement.
You are suggesting that we should add a note like "Don't worry about the
following message. This is a result of normal connectivity checking", don't
you?
FATAL: the database system is starting up
But I doubt most users would recognize such notes. Anyway, lots of such
messages certainly make monitoring and troubleshooting harder, because
valuable messages are buried.
>> 4. FATAL: sorry, too many clients already
>> Report these as FATAL to the client because the client wants to know the
>> reason. But don't output them to server log because they are not
>> necessary
>> for DBAs (4 is subtle.)
>
> The notion that a DBA should not be allowed to find out how often #4 is
> happening is insane.
I thought someone would point out so. You are right, #4 is a strong hint
for the DBA about max_connection setting or connection pool configuration.
Regards
MauMau