Re: Logging

[Zenon Panoussis <oracle@provocation.net>]

On 04/18/2011 02:53 AM, Colin McCabe wrote:

Hi

>> Question: what's the "do not log at all" syntax in ceph.conf? I tried
>> putting everything on "debug xyz = 0", but ceph (osd in this case) is
>> still logging plenty. According to this, I think it shouldn't:

> Messages that are output at log level 0 or -1 will always be
> displayed. I'm not sure if this message belongs at that log level or
> not-- I haven't dealt with the OSD repop code in a while.

Wido mentioned "log file = " in a recent posting; I'll try it.

> In general, I don't think that anyone will ever want to turn off
> logging completely. That would be a little bit like running your
> server without syslog. It just doesn't happen in the real world. 

Of course you're right in general, but right now I'm trying to figure why
my cluster is sluggy and logging is one potential cause that I'd like to
test eliminating. I've seen something like this once before (in openldap),
inexplicable slowness that I spent a long time trying to understand by
reading logs, until I found out that it went away completely as soon as
I switched off logging.

Z