[Openstack] Query about dnsmasq and neutron-ovs-cleanup [IceHouse]

Vimal Kumar vimal7370 at gmail.com
Mon Jun 30 03:43:14 UTC 2014


Hi Andrew,

I am trying out IceHouse manual install on CentOS 6.5, following the
official docs available at
http://docs.openstack.org/icehouse/install-guide/install/yum/content/.

I have opened a bug at
https://bugs.launchpad.net/openstack-manuals/+bug/1335724

But now I see another bug related with neutron-ovs-cleanup at
https://bugs.launchpad.net/cloud-archive/+bug/1249708 in which it is
recommended to start this service on all computes and network node.

Hmm.. confused :-s


On Mon, Jun 30, 2014 at 9:00 AM, Andrew Mann <andrew at divvycloud.com> wrote:

> Hi Vimal,
>
> I'm using the OpenStack Icehouse packages in the Ubuntu 14.04 repository.
>  These do start neutron-ovs-cleanup during boot of the network node.   Did
> you install from packages or manually install the components?
>
>
>
> On Sun, Jun 29, 2014 at 10:09 PM, Vimal Kumar <vimal7370 at gmail.com> wrote:
>
>> Hello Andrew,
>>
>> Searching further, I find "neutron-ovs-cleanup" mentioned in the admin
>> guide:
>>
>>
>> http://docs.openstack.org/admin-guide-cloud/content/install_neutron-l3.html
>>
>> which says:
>>
>> "If you reboot a node that runs the L3 agent, you must run the
>> neutron-ovs-cleanup command before the neutron-l3-agent service starts."
>>
>> So I believe this service should start during server bootup of network
>> node (where neutron-l3-agent service runs). Maybe they failed to include
>> this in the official admin guide.
>>
>>
>> On Mon, Jun 30, 2014 at 1:31 AM, Andrew Mann <andrew at divvycloud.com>
>> wrote:
>>
>>> Neutron itself starts the dnsmasq processes for tenant networks
>>> (neutron-dhcp-agent is the service for this I believe), so you should not
>>> enable dnsmasq in the system startup unless you are using another instance
>>> of dnsmasq for a non-neutron purpose (such as providing dns and dhcp
>>> services on your physical network to bare metal systems).
>>>
>>> I don't know much about neutron-ovs-cleanup, so I can't help with that
>>> part of the question.
>>>
>>>
>>> On Sun, Jun 29, 2014 at 1:56 PM, Vimal Kumar <vimal7370 at gmail.com>
>>> wrote:
>>>
>>>> Hello,
>>>>
>>>> I followed the exact steps mentioned at:
>>>>
>>>> http://docs.openstack.org/trunk/install-guide/install/yum/content/
>>>>
>>>> .. to create a 3 node Openstack IceHouse environment (controller,
>>>> network & compute).
>>>>
>>>> I see that "neutron-ovs-cleanup" service is present on network &
>>>> compute node, but it is turned off on both. Should this be set to on (in
>>>> chkconfig)? If yes, then on which node should this service supposed to run
>>>> (I recon network node, but still wanna confirm with the community).
>>>>
>>>> Also, I have the same concern about "dnsmasq" service. I see that this
>>>> service is installed on network node, but is turned off in chkconfig.
>>>>
>>>> However I can find a dnsmasq process currently running:
>>>>
>>>> nobody   10602  0.0  0.0  12884   772 ?        S    14:09   0:00
>>>> dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces
>>>> --interface=tap47c93394-55 --except-interface=lo
>>>> --pid-file=/var/lib/neutron/dhcp/18018aab-920b-42d4-99c3-c036155e60bf/pid
>>>> --dhcp-hostsfile=/var/lib/neutron/dhcp/18018aab-920b-42d4-99c3-c036155e60bf/host
>>>> --addn-hosts=/var/lib/neutron/dhcp/18018aab-920b-42d4-99c3-c036155e60bf/addn_hosts
>>>> --dhcp-optsfile=/var/lib/neutron/dhcp/18018aab-920b-42d4-99c3-c036155e60bf/opts
>>>> --leasefile-ro --dhcp-range=tag0,192.168.1.0,static,86400s
>>>> --dhcp-lease-max=256 --conf-file= --domain=openstacklocal
>>>>
>>>> The Openstack official guide for RHEL flavors does not mention whether
>>>> these services should be turned on during server reboot (using chkconfig).
>>>>
>>>> My concern is whether to start them automatically in case of a server
>>>> reboot. Please assist.
>>>>
>>>> Regards,
>>>> Vimal
>>>>
>>>> _______________________________________________
>>>> Mailing list:
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>> Post to     : openstack at lists.openstack.org
>>>> Unsubscribe :
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>
>>>>
>>>
>>>
>>> --
>>> Andrew Mann
>>> DivvyCloud Inc.
>>> www.divvycloud.com
>>>
>>
>>
>
>
> --
> Andrew Mann
> DivvyCloud Inc.
> www.divvycloud.com
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140630/87dcd7c0/attachment.html>


More information about the Openstack mailing list