[openstack-dev] [glance][all] Help with interpreting the log level guidelines

Flavio Percoco flavio at redhat.com
Tue Sep 16 09:07:49 UTC 2014


On 09/16/2014 01:10 AM, Clint Byrum wrote:
> Excerpts from Sean Dague's message of 2014-09-15 16:02:04 -0700:
>> On 09/15/2014 07:00 PM, Mark Washenberger wrote:
>>> Hi there logging experts,
>>>
>>> We've recently had a little disagreement in the glance team about the
>>> appropriate log levels for http requests that end up failing due to user
>>> errors. An example would be a request to get an image that does not
>>> exist, which results in a 404 Not Found request.
>>>
>>> On one hand, this event is an error, so DEBUG or INFO seem a little too
>>> low. On the other hand, this error doesn't generally require any kind of
>>> operator investigation or indicate any actual failure of the service, so
>>> perhaps it is excessive to log it at WARN or ERROR.
>>>
>>> Please provide feedback to help us resolve this dispute if you feel you can!
>>
>> My feeling is this is an INFO level. There is really nothing the admin
>> should care about here.
> 
> Agree with Sean. INFO are useful for investigations. WARN and ERROR are
> cause for alarm.

+1 this is what we do in Zaqar as well.


-- 
@flaper87
Flavio Percoco



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