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[Matt Fischer <matt@xxxxxxxxxxxxxxx>]

Cannot repro in icehouse since it looks like it's loading all stores.
Also the section with the warning in icehouse has some deprecation nodes
and a "to be removed in Juno" note, so I'm going to close this one for
now.

** Changed in: glance
       Status: In Progress => Invalid

** Changed in: glance
     Assignee: Matt Fischer (mfisch) => (unassigned)

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https://bugs.launchpad.net/bugs/1315121

Title:
  lack of logging when an invalid store is used leads to confusion

Status in OpenStack Image Registry and Delivery Service (Glance):
  Invalid

Bug description:
  EDIT: Havana h.2 is what we're using on Ubuntu

  When the http method in known_stores is disabled, mistakenly or not,
  the failure mode is annoyingly silent. I spent a day trying to track
  down why I could not load images from a URL and the logs were
  completely non-helpful, even with debug enabled in glance-api. We had
  enabled the rbd store only after enabling ceph.

  The only useful output came after enabling
  default_log_levels=eventlet.wsgi.server=DEBUG. This was the final
  useful message:

  File "/usr/lib/python2.7/dist-packages/glance/store/location.py", line 73, in get_location_from_uri
  raise exception.UnknownScheme(scheme=pieces.scheme)
   UnknownScheme: Unknown scheme 'http' found in URI write /usr/lib/python2.7/dist-packages/glance/common/wsgi.py:98

  When a user loads to an invalid store, we should not have to enable
  esoteric log levels (which we didn't even know about before asking) to
  find out.

  root@chrcnc01-control-001:~# glance -v --debug image-create --name coke --min-disk 20 --min-ram 1024 --location http://download.cirros-cloud.net/0.3.2/cirros-0.3.2-x86_64-disk.img --disk-format qcow2 --container-format bare
  curl -i -X POST -H 'x-image-meta-container_format: bare' -H 'x-image-meta-location: http://download.cirros-cloud.net/0.3.2/cirros-0.3.2-x86_64-disk.img' -H 'x-image-meta-min_disk: 20' -H 'User-Agent: python-glanceclient' -H 'x-image-meta-is_public: False' -H 'x-image-meta-min_ram: 1024' -H 'X-Auth-Token: 0b0bcc164e0f4d1cbba63d9edc13ac8d' -H 'Content-Type: application/octet-stream' -H 'x-image-meta-disk_format: qcow2' -H 'x-image-meta-name: coke' http://1.2.3.4:9292/v1/images

  HTTP/1.1 500 Internal Server Error
  date: Thu, 01 May 2014 19:20:53 GMT
  content-length: 0
  content-type: text/plain
  connection: close

  Request returned failure status.
  HTTPInternalServerError (HTTP 500)

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