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  1. Bug #1192381
  2. Comment #3

Comment 3 for bug 1192381

Revision history for this message
Wu Wenxiang (wu-wenxiang) wrote :

This issue not always happened but very often in our production environment.
I describe our production environment here:
1. Quantum with GRE Mode. DHCP use dnsmasq.
2. One L3 node(24 cores, 32G), DHCP-agent, Metadata-agent, L3-agent, OVS-plugin running on it.
3. Three Compute nodes(24Core, 96G), Nova-compute, OVS-plugin running on it.
4. VM has alreay more than 50, both VM has 2 nics belong to 2 networks.
5. 10 tenants, 2 networks for each tenant.

Then,
6. Boot 5 VMs with 2 NIC, and repeat 10 times. Check all the 50 new VMs, you will found some of them didn't got the IP from dnsmasq. Then check the related host file, you will found MAC/IP address missed here.

 I think it's absolutely a bug for quantum.