neutron

Problem with quantum

Asked by net-security

Hi All:
I send this post to ask you .
I cannot run my instances in my server with nova + openvswitch and quantum.

This is one of the error that I found.
2012-01-12 14:45:52,245 AUDIT nova.compute.manager [5e535ea4-4d48-4d36-b69c-1246e9f68994 admin meli] instance 9: starting...
2012-01-12 14:45:52,391 DEBUG nova.rpc [-] Making asynchronous call on network ... from (pid=2552) multicall /usr/lib/python2.6/dist-packages/nova/rpc/impl_kombu.py:721
2012-01-12 14:45:52,391 DEBUG nova.rpc [-] MSG_ID is 9ad145ef497141ff8212a9f38d9be828 from (pid=2552) multicall /usr/lib/python2.6/dist-packages/nova/rpc/impl_kombu.py:724
2012-01-12 14:45:53,114 DEBUG nova.compute.manager [-] instance network_info: |[[{u'injected': True, u'cidr': u'4.4.4.0/24', u'multi_host': False}, {u'broadcast': u'4.4.4.255', u'ips': [{u'ip': u'4.4.4.8', u'netmask': u'255.255.255.0', u'enabled': u'1'}], u'mac': u'02:16:3e:6a:88:78', u'vif_uuid': u'19b1e87c-ffac-4fcb-ace3-525dd92d3e40', u'dns': [u'8.8.4.4'], u'dhcp_server': u'4.4.4.1', u'gateway': u'4.4.4.1'}]]| from (pid=2552) _run_instance /usr/lib/python2.6/dist-packages/nova/compute/manager.py:394
2012-01-12 14:45:53,333 DEBUG nova.virt.libvirt_conn [-] instance instance-00000009: starting toXML method from (pid=2552) to_xml /usr/lib/python2.6/dist-packages/nova/virt/libvirt/connection.py:1162
2012-01-12 14:45:53,334 DEBUG nova.utils [-] Running cmd (subprocess): ip link show dev tap19b1e87c-ff from (pid=2552) execute /usr/lib/python2.6/dist-packages/nova/utils.py:165
2012-01-12 14:45:53,341 DEBUG nova.utils [-] Result was 255 from (pid=2552) execute /usr/lib/python2.6/dist-packages/nova/utils.py:180
2012-01-12 14:45:53,342 DEBUG nova.utils [-] Running cmd (subprocess): sudo ip tuntap add tap19b1e87c-ff mode tap from (pid=2552) execute /usr/lib/python2.6/dist-packages/nova/utils.py:165
2012-01-12 14:45:53,353 DEBUG nova.utils [-] Running cmd (subprocess): sudo ip link set tap19b1e87c-ff up from (pid=2552) execute /usr/lib/python2.6/dist-packages/nova/utils.py:165
2012-01-12 14:45:53,365 DEBUG nova.utils [-] Running cmd (subprocess): sudo ovs-vsctl -- --may-exist add-port br-int tap19b1e87c-ff -- set Interface tap19b1e87c-ff external-ids:iface-id=19b1e87c-ffac-4fcb-ace3-525dd92d3e40 -- set Interface tap19b1e87c-ff external-ids:iface-status=active -- set Interface tap19b1e87c-ff external-ids:attached-mac=02:16:3e:6a:88:78 from (pid=2552) execute /usr/lib/python2.6/dist-packages/nova/utils.py:165
2012-01-12 14:45:53,374 DEBUG nova.utils [-] Result was 1 from (pid=2552) execute /usr/lib/python2.6/dist-packages/nova/utils.py:180
2012-01-12 14:45:53,375 ERROR nova.exception [-] Uncaught exception
(nova.exception): TRACE: Traceback (most recent call last):
(nova.exception): TRACE: File "/usr/lib/python2.6/dist-packages/nova/exception.py", line 98, in wrapped
(nova.exception): TRACE: return f(*args, **kw)
(nova.exception): TRACE: File "/usr/lib/python2.6/dist-packages/nova/virt/libvirt/connection.py", line 597, in spawn
(nova.exception): TRACE: block_device_info=block_device_info)
(nova.exception): TRACE: File "/usr/lib/python2.6/dist-packages/nova/virt/libvirt/connection.py", line 1164, in to_xml
(nova.exception): TRACE: block_device_info)
(nova.exception): TRACE: File "/usr/lib/python2.6/dist-packages/nova/virt/libvirt/connection.py", line 1062, in _prepare_xml_info
(nova.exception): TRACE: nics.append(self.vif_driver.plug(instance, network, mapping))
(nova.exception): TRACE: File "/usr/lib/python2.6/dist-packages/nova/virt/libvirt/vif.py", line 121, in plug
(nova.exception): TRACE: run_as_root=True)
(nova.exception): TRACE: File "/usr/lib/python2.6/dist-packages/nova/utils.py", line 188, in execute
(nova.exception): TRACE: cmd=' '.join(cmd))
(nova.exception): TRACE: ProcessExecutionError: Unexpected error while running command.
(nova.exception): TRACE: Command: sudo ovs-vsctl -- --may-exist add-port br-int tap19b1e87c-ff -- set Interface tap19b1e87c-ff external-ids:iface-id=19b1e87c-ffac-4fcb-ace3-525dd92d3e40 -- set Interface tap19b1e87c-ff external-ids:iface-status=active -- set Interface tap19b1e87c-ff external-ids:attached-mac=02:16:3e:6a:88:78
(nova.exception): TRACE: Exit code: 1
(nova.exception): TRACE: Stdout: ''
(nova.exception): TRACE: Stderr: 'sudo: no tty present and no askpass program specified\n'
(nova.exception): TRACE:
2012-01-12 14:45:53,377 ERROR nova.compute.manager [-] Instance '9' failed to spawn. Is virtualization enabled in the BIOS? Details: Unexpected error while running command.
Command: sudo ovs-vsctl -- --may-exist add-port br-int tap19b1e87c-ff -- set Interface tap19b1e87c-ff external-ids:iface-id=19b1e87c-ffac-4fcb-ace3-525dd92d3e40 -- set Interface tap19b1e87c-ff external-ids:iface-status=active -- set Interface tap19b1e87c-ff external-ids:attached-mac=02:16:3e:6a:88:78
Exit code: 1
Stdout: ''
Stderr: 'sudo: no tty present and no askpass program specified\n'
(nova.compute.manager): TRACE: Traceback (most recent call last):
(nova.compute.manager): TRACE: File "/usr/lib/python2.6/dist-packages/nova/compute/manager.py", line 424, in _run_instance
(nova.compute.manager): TRACE: network_info, block_device_info)
(nova.compute.manager): TRACE: File "/usr/lib/python2.6/dist-packages/nova/exception.py", line 129, in wrapped
(nova.compute.manager): TRACE: raise Error(str(e))
(nova.compute.manager): TRACE: Error: Unexpected error while running command.
(nova.compute.manager): TRACE: Command: sudo ovs-vsctl -- --may-exist add-port br-int tap19b1e87c-ff -- set Interface tap19b1e87c-ff external-ids:iface-id=19b1e87c-ffac-4fcb-ace3-525dd92d3e40 -- set Interface tap19b1e87c-ff external-ids:iface-status=active -- set Interface tap19b1e87c-ff external-ids:attached-mac=02:16:3e:6a:88:78
(nova.compute.manager): TRACE: Exit code: 1
(nova.compute.manager): TRACE: Stdout: ''
(nova.compute.manager): TRACE: Stderr: 'sudo: no tty present and no askpass program specified\n'
(nova.compute.manager): TRACE:
2012-01-12 14:46:51,628 INFO nova.compute.manager [-] Found 4 in the database and 0 on the hypervisor.

Since now thanks a lot.

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net-security (net-security) said : 		#1

This is my output of nova instances:
RESERVATION r-8ow45rrv meli default
INSTANCE i-00000009 ami-00000003 4.4.4.8 4.4.4.8 pending 0 m1.small 2012-01-12T19:45:50Z nova aki-00000002 ari-00000001

Revision history for this message
Salvatore Orlando (salvatore-orlando) said : 		#2

It seems sudo is unable to execute ovs-vsctl:

(nova.compute.manager): TRACE: Stderr: 'sudo: no tty present and no askpass program specified\n'

Since these commands are being executed without a tty, my guess is that ovs-vsctl should be added to the sudoers file with the NOPASSWD option.

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dan wendlandt (danwent) said : 		#3

Salvatore is correct. Could you clarify what distro and version you are running on ? I thought we had fixed the issues of OVS not being in the sudoers file for more recent version of Ubuntu. If not, we'll have to contact them again.

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net-security (net-security) said : 		#4

Hi Salvatore:
I add your answer to my server.
Your info was ver useful for me
thanks a lot.