[Openstack] Neutron with packstack on several CentOS 6.4 nodes

Nicolae Paladi n.paladi at gmail.com
Tue Sep 3 13:15:13 UTC 2013


I am in the process of setting up a cluster of 4 CentOS 6.4
servers, with Neutron and VLAN. The current goal is to create
under the same tenant 3 subnets in different VLANs. Also, I've used
the following guides to do this:



I have tried alternative setups:

A. All services (including compute) on one host + 3 additional compute
B. All services (except compute) on one host + 3 additional compute hosts.

In case A, the guest VM is by default launched on the same host that
runs the rest of the services -- then the VM is reachable.

In case B, the VM is started on one of the compute hosts -- and then the
VMs are not reachable (though running on the compute nodes and viewable
through the instance console) e.g.:

ip netns exec qrouter-b702c4e9-cb3a-4156-8412-f902363075f2 ping

PING ( 56(84) bytes of data.
>From icmp_seq=2 Destination Host Unreachable
>From icmp_seq=3 Destination Host Unreachable
>From icmp_seq=4 Destination Host Unreachable

I've double checked the security group and rules (to allow ssh and icmp).
Logs don't show anything interesting.

* Do the compute hosts need any additional services set up (except the
quantum-openvswitch-agent and openswitch)?

* Could you suggest any troubleshooting tips/techniques?

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