Re: server log files

"EBIHARA, Yuichiro" <ebihara(at)iplocks(dot)co(dot)jp> writes:
> I'm now considering the following settings in postgresql.conf.

> log_destinatio = stderr
> logging_collector = on
> log_directory = 'pg_log'
> log_filename = 'postgresql-%Y-%m-%d.log'
> log_rotation_age = 1d
> log_truncate_on_rotation = off

> I just wonder whether I still should continue using 'pg_ctl start -l
> <filename>' to keep useful information about PostgreSQL server status.

You probably still want -l just to capture any error occuring during
server startup. But once the log collector has started to run, nothing
more should get written to that file.

> If all messages while PostgreSQL server is running are wrintten to the
> file specified by log_directory and log_filename, I'd like to consider
> to start up PostgreSQL as follows:
> $pg_ctl start > /dev/null

If the postmaster fails to start, you won't know why.

regards, tom lane