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2019-12-31 07:57:46 -0500 回答问题 DHCP is not answering on OVS

Check the configration on the controll node in dhcp_agent.ini interface_driver=openvswitch

2019-12-31 07:57:46 -0500 问了问题 DHCP is not answering on OVS

When checking on "ip netns show" you see the DHCP servers but they do not answer the resuests. Yos see also a port connectes, but you do not see this port in "ovs-vsctl show". The reason for that is, that you did not configured the openvswitch in dhcp_agent.ini interface_driver.

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2019-05-10 06:44:28 -0500 问了问题 CRITICAL nova [-] Unhandled error: gaierror: [Errno -5] No address associated with hostname

I get the following error when restarting the novnc service

systemctl restart nova-novncproxy.service

In /var/log/nova/nova-novncproxy.log I see

CRITICAL nova [-] Unhandled error: gaierror: [Errno -5] No address associated with hostname

This is caused by a wrong entry in nova.conf on the controller. Check the [vnc] section

novncproxy_base_url=http://controller:6080/vnc_auto.html