[Rdo-list] metadata service issue

[Xin Zhao]

Hello,

On my newly installed grizzly testbed, which has one controller, one 
network host (quantum/ovs) and one compute node, there is an issue with 
metadata service:

 From the instance, its routing table looks like this:

[root at host-172-16-0-8 ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref Use Iface
172.16.0.0      0.0.0.0         255.255.252.0   U     0 0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1002 0        0 eth0
0.0.0.0         172.16.0.1      0.0.0.0         UG    0 0        0 eth0

And metadata service is not reachable, the curl command complains about 
"no route to 169.254.169.254".

After deleting the 169.254.0.0/16 entry from the routing table, the 
metadata service works.

Why would quantum append the 169.254.0.0 route into the routing table of 
the VM instance ? I have enable_isolated_metadata set to False in the 
dhcp_agent.ini.

Thanks,
Xin