Sometimes some VMs are not accessible by console via horizon's.
When attempt is unsuccessful, horizon shows connection error 1006, nova-novncconsole service is logging:
2015-06-18T22:36:43.791855+00:00 info: handler exception: Timed out waiting for a reply to message ID 1ad9f21701bf46e9a6e26c3ab26d9e39.
The problem goes away some times without any services restart.
The following messages could also be seen in the logs, however it's not confirmed that they're related to the issue:
2015-06-17T11:50:16.312581+00:00 info: handler exception: Remote error: MemcachedKeyNoneError Key is None
[u'Traceback (most recent call last):\n', u' File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 137, in _dispatch_and_reply\n incoming.message))\n', u' File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 180, in _dispatch\n return self._do_dispatch(endpoint, method, ctxt, args)\n', u' File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 126, in _do_dispatch\n result = getattr(endpoint, method)(ctxt, **new_args)\n', u' File "/usr/lib/python2.6/site-packages/nova/consoleauth/manager.py", line 121, in check_token\n token_str = self.mc.get(token.encode(\'UTF-8\'))\n', u' File "/usr/lib/python2.6/site-packages/memcache.py", line 898, in get\n return self._get(\'get\', key)\n', u' File "/usr/lib/python2.6/site-packages/memcache.py", line 847, in _get\n self.check_key(key)\n', u' File "/usr/lib/python2.6/site-packages/memcache.py", line 1047, in check_key\n raise Client.MemcachedKeyNoneError("Key is None")\n', u'MemcachedKeyNoneError: Key is None\n'].
MOS version: 6.0
I can't reproduce this issue (tried on more than 10 different ISO 6.1 and 7.0).
Could you please provide more details or ping me once you face this issue again?
Move to Incomplete.