Timestamp and level is duplicated in Neutron logs at master node

[Ilya Shakhat]

Line from log file on compute node:
2015-01-26 11:43:12.816 22627 INFO neutron.common.config [-] Logging enabled!
Line from log file at master node:
2015-01-26T11:43:12.817648+00:00 info: 11:43:12.816 22627 INFO neutron.common.config [-] Logging enabled!

Timestamp and level are duplicated. Other services (e.g. nova) do not have such behavior

[Ilya Shakhat (shakhat)]

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "6.1"
  api: "1.0"
  build_number: "78"
  build_id: "2015-01-25_22-55-01"
  nailgun_sha: "e75ac13a46d6c40fe7c90af51c053c0e0a818808"
  astute_sha: "48829a27b8041c36b14e34cc2ae760c8f57703a9"
  fuellib_sha: "4c61bf87a96453a750df3e81606ba9fe21c2059f"
  ostf_sha: "95054878eff472eb6a0d9d185ce65e3105dde632"
  fuelmain_sha: ""

[Ilya Shakhat (shakhat)]

The issue is caused by old version of openstack/common/log. The fix is in _setup_logging_from_conf - need to move use_syslog section to the end of function, so the logger will use formatter from SysLogHandler rather than ContextFormatter.

[Ilya Shakhat (shakhat)]

In 6.1 Neutron uses old incubated version of oslo.log. Kilo release Neutron starts using library version of oslo.log where this issue doesn't exist. Since the issue is not of high importance it is proposed not to fix it in 6.1