Open Stack

OpenStack version: Icehouse

Issue: fail to resize

Setup: 3 nodes, namely Controller, Compute and Network; with nova-compute running solely on Compute node.

Steps to reproduce:
  1. Create an instance using image cirrus 0.3.2.
  2. Verify instance is running: nova list
  3. Resize the instance: nova resize cirrus 2 —poll
  4. Verify the resize: nova list
  5. Note that the server status is ACTIVE instead of VERIFY_RESIZE.
  6. Check nova-scheduler.log at Controller node and note the error.

Snippet of the nova-scheduler.log:


2014-09-10 14:12:46.550 7488 WARNING nova.scheduler.utils [req-63c12687-9f68-4501-a164-002c0f5fba7d 77bdd3f911744f72af7038d40d722439 73a095bf078443c9b340d871deaabcc3] Failed to compute_task_migrate_server: No valid host was found.

Traceback (most recent call last):


  File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/server.py", line 139, in inner

    return func(*args, **kwargs)


  File "/usr/lib/python2.7/dist-packages/nova/scheduler/manager.py", line 298, in select_destinations

    filter_properties)


  File "/usr/lib/python2.7/dist-packages/nova/scheduler/filter_scheduler.py", line 140, in select_destinations

    raise exception.NoValidHost(reason='')


NoValidHost: No valid host was found.


2014-09-10 14:12:46.552 7488 WARNING nova.scheduler.utils [req-63c12687-9f68-4501-a164-002c0f5fba7d 77bdd3f911744f72af7038d40d722439 73a095bf078443c9b340d871deaabcc3] [instance: 5960d4fe-8905-49f0-9cd9-1d09ded90810] Setting instance to ACTIVE state.

2014-09-10 14:12:46.645 7488 WARNING nova.conductor.manager [req-63c12687-9f68-4501-a164-002c0f5fba7d 77bdd3f911744f72af7038d40d722439 73a095bf078443c9b340d871deaabcc3] [instance: 5960d4fe-8905-49f0-9cd9-1d09ded90810] No valid host found for cold migrate

NOTE: I tried setting "allow_resize_to_same_host=true” and “allow_migrate_to_same_host=true” in all nova.conf files and
restart nova services, but still saw the same issue.

Thanks,
Danny
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