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Reviewed:  https://review.openstack.org/446644
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=938ee35d94676b43f59eef91494ec3f75ead669f
Submitter: Jenkins
Branch:    master

commit 938ee35d94676b43f59eef91494ec3f75ead669f
Author: Radomir Dopieralski <openstack@xxxxxxxxxxxx>
Date:   Thu Mar 16 18:27:03 2017 +0100

    Show volume's messages in details view
    
    Cinder can now show asynchronous error messages that are related to a
    volume. However, this requires microversions support.
    
    This patch cleans up the version and endpoint selection logic too. For
    compatibility with setups that don't follow good practices, it also
    checks for a "volume" endpoint.
    
    Change-Id: Ifdb7537b5208683bb0a81da9ac504d58beaedc89
    Closes-Bug: 1352516


** Changed in: horizon
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1352516

Title:
  Need to propagate cinder errors to UI

Status in OpenStack Dashboard (Horizon):
  Fix Released

Bug description:
  Project > Volume > Create Volume fails and only shows a generic
  'Error' in the table.  User has to go to /var/log/cinder/volume.log
  to see why it failed.  It would be nice to propagate the error message
  (or something) like the one in the volume.log: "Volume group "cinder-
  volumes" has insufficient free space (1279 extents): 1280
  required.\n'"

  Related:
  I believe Instances has a nice way of letting user know the failure... it will show a new section in the Instances table:

  Fault

  Message
  No valid host was found.
  Code
  500
  Details
  File "/opt/stack/nova/nova/scheduler/filter_scheduler.py", line 107, in schedule_run_instance raise exception.NoValidHost(reason="")
  Created
  Aug. 4, 2014, 6:50 p.m.

  ---

  volume.log trace:

  2014-05-09 05:15:24.365 32325 TRACE oslo.messaging.rpc.dispatcher Command: sudo cinder-rootwrap /etc/cinder/rootwrap.conf lvcreate -n volume-e78a37c4-69b5-4b02-91ea-8f8131da5062 cinder-volumes -L 5g
  2014-05-09 05:15:24.365 32325 TRACE oslo.messaging.rpc.dispatcher Exit code: 5
  2014-05-09 05:15:24.365 32325 TRACE oslo.messaging.rpc.dispatcher Stdout: ''
  2014-05-09 05:15:24.365 32325 TRACE oslo.messaging.rpc.dispatcher Stderr: '  Volume group "cinder-volumes" has insufficient free space (1279 extents): 1280 required.\n'
  2014-05-09 05:15:24.365 32325 TRACE oslo.messaging.rpc.dispatcher
  2014-05-09 05:15:24.367 32325 ERROR oslo.messaging._drivers.common [req-fb3ce0ad-17a5-4e8d-bf54-f7ef58f3721c 12854cf133d442a3808b2c5f45d95cd2 31e76abd2fe64fd1af8f94e0bb06487c - - -] Returning exception Unexpected error while running command.
  Command: sudo cinder-rootwrap /etc/cinder/rootwrap.conf lvcreate -n volume-e78a37c4-69b5-4b02-91ea-8f8131da5062 cinder-volumes -L 5g
  Exit code: 5
  Stdout: ''
  Stderr: '  Volume group "cinder-volumes" has insufficient free space (1279 extents): 1280 required.\n' to caller
  2014-05-09 05:15:24.368 32325 ERROR oslo.messaging._drivers.common [req-fb3ce0ad-17a5-4e8d-bf54-f7ef58f3721c 12854cf133d442a3808b2c5f45d95cd2 31e76abd2fe64fd1af8f94e0bb06487c - - -] ['Traceback (most recent call last):\n', '  File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply\n    incoming.message))\n', '  File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch\n    return self._do_dispatch(endpoint, method, ctxt, args)\n', '  File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch\n    result = getattr(endpoint, method)(ctxt, **new_args)\n', '  File "/usr/lib/python2.6/site-packages/cinder/volume/manager.py", line 363, in create_volume\n    _run_flow()\n', '  File "/usr/lib/python2.6/site-packages/cinder/volume/manager.py", line 356, in _run_flow\n    flow_engine.run()\n', '  File "/usr/lib/python2.6/site-packages/taskflow/utils/lock_utils.py", line 53, in wrapper\n    return f(*args, **kwargs)\n', '  File "/usr/lib/python2.6/site-packages/taskflow/engines/action_engine/engine.py", line 111, in run\n    self._run()\n', '  File "/usr/lib/python2.6/site-packages/taskflow/engines/action_engine/engine.py", line 121, in _run\n    self._revert(misc.Failure())\n', '  File "/usr/lib/python2.6/site-packages/taskflow/engines/action_engine/engine.py", line 78, in _revert\n    misc.Failure.reraise_if_any(failures.values())\n', '  File "/usr/lib/python2.6/site-packages/taskflow/utils/misc.py", line 558, in reraise_if_any\n    failures[0].reraise()\n', '  File "/usr/lib/python2.6/site-packages/taskflow/utils/misc.py", line 565, in reraise\n    six.reraise(*self._exc_info)\n', '  File "/usr/lib/python2.6/site-packages/taskflow/engines/action_engine/executor.py", line 36, in _execute_task\n    result = task.execute(**arguments)\n', '  File "/usr/lib/python2.6/site-packages/cinder/volume/flows/manager/create_volume.py", line 594, in execute\n    **volume_spec)\n', '  File "/usr/lib/python2.6/site-packages/cinder/volume/flows/manager/create_volume.py", line 564, in _create_raw_volume\n    return self.driver.create_volume(volume_ref)\n', '  File "/usr/lib/python2.6/site-packages/cinder/volume/drivers/lvm.py", line 196, in create_volume\n    mirror_count)\n', '  File "/usr/lib/python2.6/site-packages/cinder/volume/drivers/lvm.py", line 185, in _create_volume\n    vg_ref.create_volume(name, size, lvm_type, mirror_count)\n', '  File "/usr/lib/python2.6/site-packages/cinder/brick/local_dev/lvm.py", line 474, in create_volume\n    run_as_root=True)\n', '  File "/usr/lib/python2.6/site-packages/cinder/utils.py", line 136, in execute\n    return processutils.execute(*cmd, **kwargs)\n', '  File "/usr/lib/python2.6/site-packages/cinder/openstack/common/processutils.py", line 173, in execute\n    cmd=\' \'.join(cmd))\n', 'ProcessExecutionError: Unexpected error while running command.\nCommand: sudo cinder-rootwrap /etc/cinder/rootwrap.conf lvcreate -n volume-e78a37c4-69b5-4b02-91ea-8f8131da5062 cinder-volumes -L 5g\nExit code: 5\nStdout: \'\'\nStderr: \'  Volume group "cinder-volumes" has insufficient free space (1279 extents): 1280 required.\\n\'\n']

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