Wences,
On 06/08/13 10:35, Wenceslao Grillo wrote:
> I don't think it's such an unusual setup: One box is running PostgreSQL
> and my Python script is in another box, connecting to it (and getting
> all the unwanted messages). Because right now I'm using a development
> postgres box, I can log in to it and use psql but then I don't get those
> messages. The messages show up on my screen, on my terminal when I run
> my Python script. And I know that the debug messages are going to stderr
> because if I say:
> ./my_script.py 2>/dev/null
> I get all the prints that I put in my code and none of the debug
> messages. But I miss the messages from uncaught exceptions and the like,
> that also go to stderr.
I'm afraid there's still something different in your environment. I
edited my postgresql.conf to change log_min_messages to debug3,
restarted it and then ran the following:
$ cat test.py
import sys
import psycopg2
conn = psycopg2.connect(database="jma")
if conn is None:
sys.exit("Connection failed")
print "Connection successful"
$ python test.py
Connection successful
The debug messages end up in
/var/log/postgresql/postgresql-9.1-main.log, e.g.,
2013-08-06 11:56:14 EDT DEBUG: CommitTransaction
2013-08-06 11:56:14 EDT DEBUG: name: unnamed; blockState:
STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
2013-08-06 11:56:14 EDT DEBUG: shmem_exit(0): 8 callbacks to make
2013-08-06 11:56:14 EDT DEBUG: proc_exit(0): 2 callbacks to make
2013-08-06 11:56:14 EDT DEBUG: exit(0)
but never in my front-end process. I believe that would only happen if
I had started postgres from the command line, i.e., invoking the
'postgres' executable directly instead of using pg_ctl to start it in
the background (or as a service on Windows).
Saludos,
Joe