Kong Man <kong_mansatiansin(at)hotmail(dot)com> writes:
> We ran into a production issue during our maintenance window when I switched over LifeKeeper/PostgreSQL nodes from one to another. We noticed that the database was 1000 times slower than it usually is, then realized that the log_min_messages setting was set to 'debug5' for no reason.
How was the postmaster started? From memory, "-d5" on its command line
would do that, and would not have been overridable from postgresql.conf.
regards, tom lane