Louis Battuello <louis.battuello@xxxxxxxxxxx> writes: > I have a PostgreSQL 9.3.4 database running on CentOS 6 with PostGIS 2.1.2. Each night, I run a cron job to dump (pg_dump) a few schemas for development snapshots. Everything runs without error. > However, it seems that the dump process consistently results in a single line in the postgresql-*.log file. Oddly enough, this entry seems to ignore the log_line_prefix configuration parameter. > postgres@db:/var/lib/pgsql/9.3/data $ cat pg_log/postgresql-Fri.log > Interrupt requested That probably represents some non-Postgres bit of code deciding to bleat to stdout or stderr. The logging-collector mechanism is designed to catch such output coming from a backend process, but it can't stick a log_line_prefix on it. What exactly is bleating, I can't say. A quick grep confirms that there is no such string in the Postgres sources, but I dunno about PostGIS. If you've got any code in plperl, plpython, etc, the culprit might lurk somewhere there. glibc might even be to blame, though I don't think it ordinarily prints error messages. regards, tom lane