[openstack-dev] Proposed Logging Standards

Vishvananda Ishaya vishvananda at gmail.com
Wed Jan 29 03:53:30 UTC 2014

On Jan 27, 2014, at 6:57 PM, Christopher Yeoh <cbkyeoh at gmail.com> wrote:

> On Tue, Jan 28, 2014 at 12:55 AM, Sean Dague <sean at dague.net> wrote:
> On 01/27/2014 09:07 AM, Macdonald-Wallace, Matthew wrote:
> > Hi Sean,
> >
> > I'm currently working on moving away from the "built-in" logging to use log_config=<filename> and the python logging framework so that we can start shipping to logstash/sentry/<insert other useful tool here>.
> >
> > I'd be very interested in getting involved in this, especially from a "why do we have log messages that are split across multiple lines" perspective!
> Do we have many that aren't either DEBUG or TRACE? I thought we were
> pretty clean there.
> > Cheers,
> >
> > Matt
> >
> > P.S. FWIW, I'd also welcome details on what the "Audit" level gives us that the others don't... :)
> Well as far as I can tell the AUDIT level was a prior drive by
> contribution that's not being actively maintained. Honestly, I think we
> should probably rip it out, because I don't see any in tree tooling to
> use it, and it's horribly inconsistent.
> For the uses I've seen of it in the nova api code INFO would be perfectly fine in place of AUDIT.

+1 AUDIT was added for a specific NASA use case because we needed a clean feed of important actions for security compliance and many upstream libraries were putting out INFO logs that we did not want included.  Safe to rip it out IMO.


> I'd be happy to help out with patches to cleanup the logging in n-api.
> One other thing to look at - I've noticed with logs is that when something like glanceclient code (just as an example) is called from nova,
> we can get ERROR level messages for say image not found when its actually perfectly expected that this will occur.
> I'm not sure if we should be changing the error level in glanceclient or just forcing any error logging in glanceclient when
> called from Nova to a lower level though.
> Chris
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