Glance-api logs are full of warnings "Unknown version. Returning version choices"

[Ilya Shakhat]

Logs for glance-api service a filled with warnings: "Unknown version. Returning version choices.". Messages occur every 2-4 seconds. The full pattern is following:
2015-07-29 15:16:57.116 30156 DEBUG glance.api.middleware.version_negotiation [-] Using url versioning process_request /usr/lib/python2.7/dist-packages/glance/api/middleware/version_negotiation.py:60
2015-07-29 15:16:57.120 30156 WARNING glance.api.middleware.version_negotiation [-] Unknown version. Returning version choices.
2015-07-29 15:16:57.122 30156 INFO eventlet.wsgi.server [-] 240.0.0.2 - - [29/Jul/2015 15:16:57] "OPTIONS / HTTP/1.0" 300 805 0.007725
2015-07-29 15:17:03.582 30156 DEBUG glance.api.middleware.version_negotiation [-] Determining version of request: OPTIONS / Accept: process_request /usr/lib/python2.7/dist-packages/glance/api/middleware/version_negotiation.py:47

[Ilya Shakhat (shakhat)]

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "7.0"
  openstack_version: "2015.1.0-7.0"
  api: "1.0"
  build_number: "705"
  build_id: "2015-07-29_10-43-57"
  nailgun_sha: "b3972d61b525bff8f5ffb26ff98422ab6530d265"
  python-fuelclient_sha: "f04e6c46783ecd6000df31b61b6749da66d4d828"
  fuel-agent_sha: "355c08a04917f047b88f66242767049d2b1d0ff0"
  fuel-nailgun-agent_sha: "1512b9af6b41cc95c4d891c593aeebe0faca5a63"
  astute_sha: "34e0493afa22999c4a07d3198ceb945116ab7932"
  fuel-library_sha: "b27705422dafd8453ed2b8406dabe565af1604eb"
  fuel-ostf_sha: "888baa3eab00242bf98eccdda36144deb7683bb3"
  fuelmain_sha: "de5b333815f8541224c6726dc8446ffc7fb18b5b"

[Kairat Kushaev (kkushaev)]

This bug is valid for upstream also: I see the same messages in Liberty.

[Kairat Kushaev (kkushaev)]

Sorry, please ignore my message above, messages in kilo is quite different.

[Kairat Kushaev (kkushaev)]

It turns out that HAProxy generates a request where api_version is not present.
That's why we have these messages in logs.
Moving this ticket to HA guys.

[Alexey Galkin (agalkin)]

We need to change request type from "OPTIONS / HTTP/1.0" to "GET / HTTP/1.0".

[Denis Egorenko (degorenko)]

It seems like we need set to 'option httpchck GET /'

[Alexey Galkin (agalkin)]

Change url to /versions

[Denis Egorenko (degorenko)]

It will works 'option httpchck /versions'

[Denis Egorenko (degorenko)]

https://review.openstack.org/#/c/215210/

[Denis Egorenko (degorenko)]

Fix merged. Moving to 'Fix committed'

[Alexey Galkin (agalkin)]

Verified on MOS 7.0 in ISO #228.

root@node-1:~# tailf /var/log/glance/glance-api.log
2015-08-25 14:48:55.155 3530 INFO eventlet.wsgi.server [req-7be60be2-9719-4536-bff6-722fe37a37a7 37952dde1e384e458b4e614317e598f6 470dbd0fb0f94009a846536c637fd92e - - -] 192.168.0.6 - - [25/Aug/2015 14:48:55] "OPTIONS /versions HTTP/1.0" 300 805 0.001344
2015-08-25 14:48:55.262 3530 INFO eventlet.wsgi.server [req-7be60be2-9719-4536-bff6-722fe37a37a7 37952dde1e384e458b4e614317e598f6 470dbd0fb0f94009a846536c637fd92e - - -] 192.168.0.2 - - [25/Aug/2015 14:48:55] "OPTIONS /versions HTTP/1.0" 300 805 0.001012