Re: fatal error in pg.log

"Medora Schauer" <mschauer@fairfield.com> writes:
> We are using ver 7.3.4 (old I know but we can't upgrade until early next
> year) on a linux 2.4 system and are having some flaky problems with our
> apps.  They just die at apparently random times.  In trying to figure
> out what is going on I noticed a couple of messages in pg.log that
> concern me:

> FATAL:  unsupported frontend protocol

This suggests that you have some 7.4-or-later clients out there.  They
will try to connect using the 7.4 protocol, fail as above, and fall back
to the older protocol.  Nothing to worry about.

> WARNING:  Message from PostgreSQL backend:
>         The Postmaster has informed me that some other backend
>         died abnormally and possibly corrupted shared memory.

This is bad, but it's unrelated to the other message, and you didn't
show us the message that it *is* related to.

            regards, tom lane