Horizon does not display 1000 volumes

[Olga Klochkova]

Steps:
1. Log in WebUI
2. Create 1000 volumes
3. Go to Settings page and change 'Items Per Page' to 1000
4. Open Horizon->admin->volumes

Actual result:
Page shows empty page and error's message: Unable to retrieve volume list

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "510"
  build_id: "510"
  fuel-nailgun_sha: "41170db11c366af5fe04c1c539c11b2e3e388ef9"
  python-fuelclient_sha: "4f234669cfe88a9406f4e438b1e1f74f1ef484a5"
  fuel-agent_sha: "658be72c4b42d3e1436b86ac4567ab914bfb451b"
  fuel-nailgun-agent_sha: "b2bb466fd5bd92da614cdbd819d6999c510ebfb1"
  astute_sha: "b81577a5b7857c4be8748492bae1dec2fa89b446"
  fuel-library_sha: "ec7e212972ead554f21b52b9e165156665f659df"
  fuel-ostf_sha: "5fe41945c2a49f26c849df1fd46329f6db1ab6b0"
  fuel-mirror_sha: "351d568fa3b3e4dd062054b91d766aa54d379867"
  fuelmenu_sha: "234cb4cbb30fbd2df00f388c28f31606d9cae15f"
  shotgun_sha: "63645dea384a37dde5c01d4f8905566978e5d906"
  network-checker_sha: "a43cf96cd9532f10794dce736350bf5bed350e9d"
  fuel-upgrade_sha: "616a7490ec7199f69759e97e42f9b97dfc87e85b"
  fuelmain_sha: "94507c5e4dad6d8cfbd8f5d41aa8389d5335990a"

[Timur Sufiev (tsufiev-x)]

It's not expected to work with such numbers per page. Please, check if 1000 volumes could be displayed in 10 pages with 100 volumes per page.

[Olga Klochkova (oklochkova)]

The bug is about code logic flaw in a corner case, so it doesn't matter if 1000 volumes per page is practically usable.
It makes sense to fix the code anyways.

[Timur Sufiev (tsufiev-x)]

Okay, then please provide us with horizon logs with that error.

[Olga Klochkova (oklochkova)]

horizon logs:
2016-02-25 13:44:55,384 4364 ERROR horizon.exceptions Not Found: Not Found (HTTP 404)
Traceback (most recent call last):
  File "/usr/share/openstack-dashboard/openstack_dashboard/wsgi/../../openstack_dashboard/dashboards/project/volumes/tabs.py", line 42, in _get_volumes
    sort_dir=sort_dir, paginate=True)
  File "/usr/share/openstack-dashboard/openstack_dashboard/wsgi/../../openstack_dashboard/api/cinder.py", line 225, in volume_list_paged
    sort=sort):
  File "/usr/lib/python2.7/dist-packages/cinderclient/v2/volumes.py", line 375, in list
    "volumes", limit=limit)
  File "/usr/lib/python2.7/dist-packages/cinderclient/base.py", line 110, in _list
    limit, items)
  File "/usr/lib/python2.7/dist-packages/cinderclient/base.py", line 65, in _list
    resp, body = self.api.client.get(url)
  File "/usr/lib/python2.7/dist-packages/cinderclient/client.py", line 303, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/lib/python2.7/dist-packages/cinderclient/client.py", line 266, in _cs_request
    **kwargs)
  File "/usr/lib/python2.7/dist-packages/cinderclient/client.py", line 249, in request
    raise exceptions.from_response(resp, body)
NotFound: Not Found (HTTP 404)

[Dina Belova (dbelova)]

Added move-to-10.0 tag due to the fact bug was transferred from 9.0 to 10.0