Open Stack

Hi All,

I have an openstack installation environment of two nodes. One node contains Controller, Network, Nova, Glance, Keystone, Client, and Cinder. The other node is just a nova_compute node.   Everything worked very well before. Suddenly we hit the issue that vm instances could not get ip addresses from dhcp agent.  I looked into dhcp-agent.log, but didn't find much useful information. Just wondering if someone could shed some light on this issue.

The behavior is that even the VMs created on node1, which contains Controller, Network, Nova, Glance, keystone, Client and Cinder could not get the IP from dhcp agent. When I use tcpdump -i br-ehter1, or tcpdump -i < physical Ethernet port id>, I was able to see the DHCP requests, but no reply from dhcp agent.

Any idea?

Thanks,

YuLing



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