[rdo-users] launching vm instance failed

Fri Sep 11 02:09:16 UTC 2020

Hello Donny,

Previously I also find out that the port status is down when creating a new network in OVN configuration, and when using openvswitch configuration, the port creation is OK. I’m bewildered why the port status is always down when using OVN configuration.

At the two days I’m busy doing other things, have not collect the openstack logs.

One question, I open the link below, but I don’t understand what I can learn from the web page.

Thanks.

From: Arkady Shtempler <ashtempl at redhat.com>
Sent: 2020年9月10日 18:52
To: Donny Davis <donny at fortnebula.com>
Cc: Qi, Congyun (NSB - CN/Shanghai) <congyun.qi at nokia-sbell.com>; users at lists.rdoproject.org
Subject: Re: [rdo-users] launching vm instance failed

Hi Donny!

OK, thanks for the update!

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On Thu, Sep 10, 2020 at 1:21 PM Donny Davis <donny at fortnebula.com<mailto:donny at fortnebula.com>> wrote:

On Tue, Sep 8, 2020 at 3:20 AM Qi, Congyun (NSB - CN/Shanghai) <congyun.qi at nokia-sbell.com<mailto:congyun.qi at nokia-sbell.com>> wrote:
Hello specialist,

I want to deploy a trial OpenStack platform via RDO installing method. My brief operating step is listed below:

1)       Select 5 blade servers in one HP C7000 blade enclosure server, the 1st blade is defined controller node, the 2nd-5th is thought of compute node, each blade server is installed 1 10G ethernet adapter which has 2 10G ethernet port.

2)       Each blade server is installed centos7.8 Linux, each blade’s 1st ethernet port is defined SRIOV compute port which is named eno49 in Linux, the 2nd ethernet port is defined OpenVswitch port.

3)       Install openstack repository whose version is “train”, install “packstack” package, and generate an answer-file by command “packstack --gen-answer-file=xxxxx”, and then modify some relative parameters to install the openstack service, add ml2 type, add 4 compute node, and so on.

4)       Do the command “packstack –answer-file=xxxxx” to deploy the openstack, the openstack can be deployed successfully, the ML2 type is OVN.

5)       The image is created, the network, subnet and port is created, and the flavor is created, then an instance is tried to be launched, but the VM failed to be launched once again, some logs is attached.

Could you help to check why the VM instance can’t be launched successfully.

Thanks so much.

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I just ran into a similar issue. The problem seems to be with port binding and ovn.
From your neutron server log I can see this issue.

2020-09-07 15:56:46.029 5266 ERROR neutron.plugins.ml2.managers [req-fc360039-26f1-40f8-8d19-ee5c2a9ded85 399a6aac0d9c4b83b9435c032a45abcb 753c94a452ee4b4ca0ff01fb23040a0f - default default] Failed to bind port a93cee42-7823-4c4c-9d25-67f280c56d32 on host sh-rdo-compute004-c7k4-blade05 for vnic_type normal using segments [{'network_id': 'e515b8e3-ce0d-429a-8192-9101acb38435', 'segmentation_id': 401, 'physical_network': u'physnet1', 'id': 'a9e687c4-2bde-4744-b287-6d6e51a0e102', 'network_type': u'vlan'}]

I switched to using openvswitch from ovn and the issues seem to have disappeared
Check this post out, its seems to work pretty much out of the box for me
https://keithtenzer.com/2020/02/27/openstack-16-train-lab-installation-and-configuration-guide-for-hetzner-root-servers/

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