Re: [ovirt-devel] [vdsm] logging levels and noise in the log
----- Original Message -----
From: "Martin Sivak" <msivak(a)redhat.com>
To: devel(a)ovirt.org
Sent: Thursday, July 10, 2014 12:09:14 PM
Subject: [ovirt-devel] [vdsm] logging levels and noise in the log
Hi,
we discussed the right amount of logging with Nir and Francesco while
reviewing my patches. Francesco was against one DEBUG log message that could
potentially flood the logs. But the message in question was important for me
and SLA, because it was logging the VDSM changes in response to MoM command.
Since DEBUG really is meant to be used for debug messages, I have one
proposal:
1) Change the default log level of vdsm.log to INFO
2) Log (only) DEBUG messages to a separate file vdsm-debug.log
3) Make the vdsm-debug.log rotate faster (every hour, keep only last couple
of hours?) so it does not grow too much
This way the customer would be able to monitor INFO logs (much smaller)
without all the noise and we would be able to collect the DEBUG part in case
something happens.
What do you think?
+1, because it is an improvement with respect to our current situation.
but we need to carefully pick the debug log rotation frequency.
I also think that we probably need (myself first on the line) a bit more
thoughtful about what we log and on which level.
I believe that log.debug() is used a bit too leniently.
Again, I am the first in the line of guilty.
Bests,
--
Francesco Romani
RedHat Engineering Virtualization R & D
Phone: 8261328
IRC: fromani