Openstack hypervisor list is empty

Karera Tony tonykarera at gmail.com
Fri Sep 24 21:10:16 UTC 2021


I would really appreciate any support on this

On Fri, 24 Sep 2021, 11:13 Karera Tony, <tonykarera at gmail.com> wrote:

> Hello Team,
>
> I don't know if there has been any change in the packages but the way I am
> deploying is the same way I have been deploying.
>
> I don't understand why there is a certain issue now.
> Regards
>
> Tony Karera
>
>
>
>
> On Fri, Sep 24, 2021 at 7:30 AM Karera Tony <tonykarera at gmail.com> wrote:
>
>> Hello Laurent,
>>
>> It turns out I only have one keyring in the container.
>>
>> root at compute1:/home/stack# docker exec -it nova_compute bash
>> (nova-compute)[nova at compute1 /]$ cd /etc/ceph/
>> (nova-compute)[nova at compute1 ceph]$ ls
>> ceph.client.nova.keyring  ceph.conf  rbdmap
>>
>> Regards
>>
>> Tony Karera
>>
>>
>>
>>
>> On Fri, Sep 24, 2021 at 2:47 AM Laurent Dumont <laurentfdumont at gmail.com>
>> wrote:
>>
>>> I do believe Kolla runs a container version of each service on computes.
>>> Are you looking inside the nova-compute container (
>>> etc/ceph/ceph.client.cinder.keyring,/etc/ceph/ceph.
>>> keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin)
>>>
>>> On Thu, Sep 23, 2021 at 11:24 AM Karera Tony <tonykarera at gmail.com>
>>> wrote:
>>>
>>>> Hello Sean,
>>>>
>>>> Below are the output on the compute node and deployment
>>>>
>>>> root at compute1:/etc/kolla/nova-compute# ls
>>>> ceph.client.cinder.keyring  ceph.client.nova.keyring  ceph.conf
>>>>  config.json  nova.conf
>>>>
>>>> (kolla-openstack) stack at deployment:~$ ls /etc/kolla/config/nova/
>>>> ceph.client.cinder.keyring  ceph.client.nova.keyring  ceph.conf
>>>>
>>>> And I can confirm that the content is the same.
>>>>
>>>>
>>>>
>>>> Regards
>>>>
>>>> Tony Karera
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Sep 23, 2021 at 3:20 PM Sean Mooney <smooney at redhat.com> wrote:
>>>>
>>>>> On Thu, 2021-09-23 at 08:59 -0400, Laurent Dumont wrote:
>>>>> > I would investigate that compute error first. Creating volumes means
>>>>> the
>>>>> > controllers are doing the action. Starting a VM on a compute means
>>>>> you also
>>>>> > need Ceph to works on the compute to mount the rdb target.
>>>>>
>>>>> nova as part of its startup process in aintiallying the resouce
>>>>> tracker will
>>>>> try to connect to ceph if you are using the rbd image backend to
>>>>> report how much stroage
>>>>> is avaiable. if the keyring does  not work on the vms pool as the user
>>>>> nova is connecting as
>>>>> then that will block the agent from starting up fully and will cause
>>>>> it to be missing the hypervior list.
>>>>>
>>>>> the error seams to indicate that the cinder keyring is not in the nova
>>>>> container
>>>>> that likely means you have not put it in /etc/kolla/config/nova
>>>>> i woudl check /etc/kolla/config/nova on the deployment host and sudo
>>>>> ls /etc/kolla/nova-compute/
>>>>> on the compute node to ensure the cinder keyring is actully copied and
>>>>> has the correct content
>>>>>
>>>>> i have
>>>>> stack at cloud:/opt/repos/devstack$ sudo ls /etc/kolla/nova-compute/
>>>>> ceph.client.cinder.keyring  ceph.client.nova.keyring  ceph.conf
>>>>> config.json  nova.conf
>>>>>
>>>>>
>>>>> [client.cinder]
>>>>>         key = *********************************
>>>>>         caps mgr = "profile rbd pool=volumes, profile rbd pool=vms"
>>>>>         caps mon = "profile rbd"
>>>>>         caps osd = "profile rbd pool=volumes, profile rbd pool=vms,
>>>>> profile rbd pool=images"
>>>>> stack at cloud:/opt/repos/devstack$ sudo cat
>>>>> /etc/kolla/nova-compute/ceph.client.nova.keyring
>>>>> [client.nova]
>>>>>         key = *********************************
>>>>>         caps mgr = "profile rbd pool=volumes, profile rbd pool=vms"
>>>>>         caps mon = "profile rbd"
>>>>>         caps osd = "profile rbd pool=volumes, profile rbd pool=vms,
>>>>> profile rbd pool=images"
>>>>>
>>>>> blanked out the key wiht *************** after the fact but you should
>>>>> have something similar
>>>>>
>>>>>
>>>>> in my case i decied to use a seperate key for nova rbd backend because
>>>>> i was also using EC poosl with a seperate data and metadata pool
>>>>> so i neede to modify my ceph.conf to make that work with kolla
>>>>>
>>>>> stack at cloud:/opt/repos/devstack$ sudo cat
>>>>> /etc/kolla/nova-compute/ceph.conf
>>>>> # minimal ceph.conf for 15b00858-ba8c-11eb-811f-f9257f38002f
>>>>> [global]
>>>>> fsid = *********************
>>>>> mon_host = [*********************]
>>>>>
>>>>> [client.glance]
>>>>> rbd default data pool = images-data
>>>>>
>>>>> [client.cinder]
>>>>> rbd default data pool = volumes-data
>>>>>
>>>>> [client.nova]
>>>>> rbd default data pool = vms-data
>>>>>
>>>>> using 2 keyrings/user allows me to set different default data pools
>>>>> for cinder and nova.
>>>>>
>>>>> >
>>>>> > Working in Wallaby with the error doesn't mean it would 100% work in
>>>>> > Victoria.
>>>>> >
>>>>> > On Thu, Sep 23, 2021 at 5:02 AM Karera Tony <tonykarera at gmail.com>
>>>>> wrote:
>>>>> >
>>>>> > > Hey Guys, Any other idea ?
>>>>> > >
>>>>> > > Regards
>>>>> > >
>>>>> > > Tony Karera
>>>>> > >
>>>>> > >
>>>>> > >
>>>>> > >
>>>>> > > On Wed, Sep 22, 2021 at 5:20 PM Karera Tony <tonykarera at gmail.com>
>>>>> wrote:
>>>>> > >
>>>>> > > > Just to add on that,
>>>>> > > >
>>>>> > > > compute service is listed, I can create Volumes, I have the same
>>>>> cinder
>>>>> > > > keyring in the /etc/kolla/config/nova directory as I have in  the
>>>>> > > > /etc/kolla/config/cinder/cinder-volume directory along with the
>>>>> nova keyring
>>>>> > > > Regards
>>>>> > > >
>>>>> > > > Tony Karera
>>>>> > > >
>>>>> > > >
>>>>> > > >
>>>>> > > >
>>>>> > > > On Wed, Sep 22, 2021 at 5:08 PM Karera Tony <
>>>>> tonykarera at gmail.com> wrote:
>>>>> > > >
>>>>> > > > > Hello Guys,
>>>>> > > > >
>>>>> > > > > Thanks a lot.
>>>>> > > > >
>>>>> > > > > I had actually checked the nova -compute.log  on the compute
>>>>> node and
>>>>> > > > > they were showing the error I will post at the end about the
>>>>> cinder keyring
>>>>> > > > > but I know its correct because its the same I was using on
>>>>> wallaby, I even
>>>>> > > > > tried to use another ceph cluster with ofcouse different
>>>>> keyrings but its
>>>>> > > > > the same issue.
>>>>> > > > >
>>>>> > > > > Below is the error
>>>>> > > > >
>>>>> > > > > r Stderr: '2021-09-22T15:04:31.574+0000 7fbce2f4f700 -1 auth:
>>>>> unable to
>>>>> > > > > find a keyring on
>>>>> > > > >
>>>>> /etc/ceph/ceph.client.cinder.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,:
>>>>> > > > > (2) No such file or directory\n2021-09-22T15:04:31.574+0000
>>>>> 7fbce2f4f700 -1
>>>>> > > > > AuthRegistry(0x7fbcdc05a8b8) no keyring found at
>>>>> > > > >
>>>>> /etc/ceph/ceph.client.cinder.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,,
>>>>> > > > > disabling cephx\n2021-09-22T15:04:31.582+0000 7fbce2f4f700 -1
>>>>> auth: unable
>>>>> > > > > to find a keyring on
>>>>> > > > >
>>>>> /etc/ceph/ceph.client.cinder.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,:
>>>>> > > > > (2) No such file or directory\n2021-09-22T15:04:31.582+0000
>>>>> 7fbce2f4f700 -1
>>>>> > > > > AuthRegistry(0x7fbcdc060698) no keyring found at
>>>>> > > > >
>>>>> /etc/ceph/ceph.client.cinder.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,,
>>>>> > > > > disabling cephx\n2021-09-22T15:04:31.582+0000 7fbce2f4f700 -1
>>>>> auth: unable
>>>>> > > > > to find a keyring on
>>>>> > > > >
>>>>> /etc/ceph/ceph.client.cinder.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,:
>>>>> > > > > (2) No such file or directory\n2021-09-22T15:04:31.582+0000
>>>>> 7fbce2f4f700 -1
>>>>> > > > > AuthRegistry(0x7fbce2f4e020) no keyring found at
>>>>> > > > >
>>>>> /etc/ceph/ceph.client.cinder.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,,
>>>>> > > > > disabling cephx\n[errno 2] RADOS object not found (error
>>>>> connecting to the
>>>>> > > > > cluster)\n'
>>>>> > > > > 2021-09-22 15:04:31.592 8 ERROR nova.compute.manager
>>>>> > > > > 2021-09-22 15:04:31.592 8 ERROR nova.compute.manager During
>>>>> handling of
>>>>> > > > > the above exception, another exception occurred:
>>>>> > > > > Regards
>>>>> > > > >
>>>>> > > > > Tony Karera
>>>>> > > > >
>>>>> > > > >
>>>>> > > > >
>>>>> > > > >
>>>>> > > > > On Wed, Sep 22, 2021 at 4:50 PM Sean Mooney <
>>>>> smooney at redhat.com> wrote:
>>>>> > > > >
>>>>> > > > > > On Wed, 2021-09-22 at 10:46 -0400, Laurent Dumont wrote:
>>>>> > > > > > > It could also be a compute cell discovery issue maybe?
>>>>> > > > > > no they shoudl still show up in the hypervior list api
>>>>> > > > > > >
>>>>> > > > > > > Do you see anything under "openstack compute service list"?
>>>>> > > > > > if they show up in the service list but not they hyperiors
>>>>> api it
>>>>> > > > > > means that the comptue service started and registered its
>>>>> service entry
>>>>> > > > > > but
>>>>> > > > > > something broke it before it could create a compute node
>>>>> recored in the
>>>>> > > > > > db.
>>>>> > > > > >
>>>>> > > > > > with ceph the case i have hit this most often is when the
>>>>> keyright used
>>>>> > > > > > by nova to
>>>>> > > > > > get the avaiable capastiy of the ceph cluster is wrong whihc
>>>>> prevent
>>>>> > > > > > the resoucetack and compute manager
>>>>> > > > > > form actully creating the compute node record.
>>>>> > > > > >
>>>>> > > > > >
>>>>> > > > > > it can happen for other reason too but best place to start
>>>>> is check if
>>>>> > > > > > there is an error in the nova compute agent log and go from
>>>>> there.
>>>>> > > > > > >
>>>>> > > > > > > On Wed, Sep 22, 2021 at 10:33 AM Sean Mooney <
>>>>> smooney at redhat.com>
>>>>> > > > > > wrote:
>>>>> > > > > > >
>>>>> > > > > > > > On Wed, 2021-09-22 at 15:39 +0200, Karera Tony wrote:
>>>>> > > > > > > > > Hello Team,
>>>>> > > > > > > > >
>>>>> > > > > > > > > I have deployed Openstack Victoria using Kolla-ansible
>>>>> on Ubuntu
>>>>> > > > > > 20.04
>>>>> > > > > > > > and
>>>>> > > > > > > > > ceph as the backend storage for Nova, Cinder and
>>>>> Glance.
>>>>> > > > > > > > >
>>>>> > > > > > > > > It finished with no error but it has failed to
>>>>> register any on the
>>>>> > > > > > > > Compute
>>>>> > > > > > > > > Nodes under Hypervisors.
>>>>> > > > > > > > >
>>>>> > > > > > > > > kolla-openstack) stack at deployment:~$ openstack
>>>>> hypervisor list
>>>>> > > > > > > > >
>>>>> > > > > > > > > (kolla-openstack) stack at deployment:~$
>>>>> > > > > > > > >
>>>>> > > > > > > > >
>>>>> > > > > > > > > Any idea on how to resolve this ?
>>>>> > > > > > > > that usually means that somehthing prevented the comptue
>>>>> agent form
>>>>> > > > > > > > strating properly
>>>>> > > > > > > >
>>>>> > > > > > > > for example incorrect ceph keyrings there are several
>>>>> other case
>>>>> > > > > > but you
>>>>> > > > > > > > mentioned you are
>>>>> > > > > > > > using ceph.
>>>>> > > > > > > >
>>>>> > > > > > > > if this is hte case you should see error in the compute
>>>>> agent log.
>>>>> > > > > > > >
>>>>> > > > > > > > >
>>>>> > > > > > > > > Regards
>>>>> > > > > > > > >
>>>>> > > > > > > > > Tony Karera
>>>>> > > > > > > >
>>>>> > > > > > > >
>>>>> > > > > > > >
>>>>> > > > > > > >
>>>>> > > > > >
>>>>> > > > > >
>>>>> > > > > >
>>>>>
>>>>>
>>>>>
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