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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => grizzly-rc1

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https://bugs.launchpad.net/bugs/975589

Title:
  Improve API logging

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  Nova's API logging (in nova.api.openstack.wsgi) has a few problems:

  1) It mixes in error information with what's traditionally thought of
  as "access" logging, making it hard to parse. It also puts a lot of
  english into the responses (e.g., "returned with HTTP 200").

  2) Requests are double-logged, once with the request method, once with
  the status code.

  3) Complete information isn't always logged. E.g., if any of the
  various returns are hit in _process_stack, the response status isn't
  logged.

  4) Other useful information isn't captured.

  I think we need to move the debug data to a separate log channel
  (e.g., "nova.api.openstack.wsgi.error"), normalise the access log
  format and capture, and add the following :

    - User-Agent request header (so we can start to understand what tools are using the API)
    - Request body size in bytes
    - Request Content-Type
    - Response body size in bytes
    - Response Content-Type
    - time to service request (for performance metrics)

  I'm willing to do this work.

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