On 8/7/07,
Tom Lane <
tgl@sss.pgh.pa.us> wrote:
Peter Eisentraut <peter_e@gmx.net> writes:
> But INFO is not shown by default.
INFO is mostly a hack to try to emulate VACUUM VERBOSE's ancient
behavior before we redesigned the elog levels. It's intended for
controlling messages that should go to a client because the client
asked for them, and usually should NOT go to the log. I think it's
100% inappropriate to use it for messages from a background process
that has no client.
Traditional log-level semantics aren't very rich. I think that's the real source of this problem: "How do I get the info I need to tune auto-vacuum without swamping my system with log IO". While the following isn't production ready, it seems to have some really good ideas.
http://log4c.sourceforge.net/log4c is inspired by log4j, which seems to have become the defacto standard tool for logging in the enterprise java world.
Andrew
