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On Mon, Feb 10, 2014 at 2:56 PM, Sean Dague <sean at dague.net> wrote:

> In upstream Nova master we're currently logging ec2 wsgi requests twice,
> once in the paste pipeline, and once in eventlet.
>
> The following patch removes the paste pipeline portion -
> https://review.openstack.org/#/c/67736/
>
> However... I'm not very satisfied with this approach, as the resulting
> log entries look as follows (lots more examples at -
>
> http://logs.openstack.org/36/67736/7/check/check-tempest-dsvm-full/9b0eb3e/logs/screen-n-api.txt.gz?level=INFO
> )
>
> ... "POST /services/Cloud/ HTTP/1.1" status: 200 len: 2099 time: 0.8823061
> ... "POST /services/Cloud/ HTTP/1.1" status: 200 len: 449 time: 0.1196980
> ... "POST /services/Cloud/ HTTP/1.1" status: 200 len: 2095 time: 0.4743402
> ... "POST /services/Cloud/ HTTP/1.1" status: 400 len: 360 time: 0.5385840
> ... "POST /services/Cloud/ HTTP/1.1" status: 200 len: 449 time: 0.1317410
>
> Because the eventlet logger is only logging the requestline (which is
> the URL), Post requests are basically completely information free.
>
> We have an equally opaque problem in the Nova API with server actions:
>
> ... "POST
>
> /v2/85979842c31049fab70bcdd399cb9a3f/servers/4d5c5ba0-a975-4f4b-863a-390ad58e1c48/action
> HTTP/1.1" status: 202 len: 185 time: 1.1360781
>
> Because these aren't really RESTful interfaces, so the url is not useful
> enough to determine the action.
>
> My feeling is that we need to make the wsgi request logs useful enough
> to know what was actually called on an API call, which means I'm not
> convinced we can actually use the eventlet logger for Nova, because our
> URLs aren't actually RESTful.
>
> I'm slightly surprised that in v3 we do the same thing. Could we at
> minimum change .... action urls to action/ACTIONNAME, or would that
> completely not work with our router?
>

Yea this is a wsgi "thing". I guess we'll need to log action POSTs twice to
get enough useful info in the logs.

Chris
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