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[Launchpad Bug Tracker <1628980@xxxxxxxxxxxxxxxxxx>]

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Release :- Liberty
Adding additional compute nodes

While launching a VM using the newly added node(By selecting the host
aggregate that include the new compute node)

The /etc/nova/nova-compute.log shows below error

Failed to add bridge: sudo: no tty present and no askpass program
specified

>From the horizon GUI the generic error of "No valid host" is displayed.

Message
No valid host was found. There are not enough hosts available.

Code 500
Details
File "/usr/lib/python2.7/dist-packages/nova/conductor/manager.py", line 739, in build_instances request_spec, filter_properties) File "/usr/lib/python2.7/dist-packages/nova/scheduler/utils.py", line 343, in wrapped return func(*args, **kwargs) File "/usr/lib/python2.7/dist-packages/nova/scheduler/client/__init__.py", line 52, in select_destinations context, request_spec, filter_properties) File "/usr/lib/python2.7/dist-packages/nova/scheduler/client/__init__.py", line 37, in __run_method return getattr(self.instance, __name)(*args, **kwargs) File "/usr/lib/python2.7/dist-packages/nova/scheduler/client/query.py", line 34, in select_destinations context, request_spec, filter_properties) File "/usr/lib/python2.7/dist-packages/nova/scheduler/rpcapi.py", line 120, in select_destinations request_spec=request_spec, filter_properties=filter_properties) File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/client.py", line 158, in call retry=self.retry) File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/transport.py", line 90, in _send timeout=timeout, retry=retry) File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 470, in send retry=retry) File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 461, in _send raise result

** Affects: neutron
     Importance: Undecided
         Status: Invalid


** Tags: linuxbridge-agent neutron
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Failed to add bridge: sudo: no tty present and no askpass program specified
https://bugs.launchpad.net/bugs/1628980
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