<div dir="ltr">The default error messages for cinder-volume can be pretty vague. I would suggest enabling Debug for Cinder + service restart and seeing the error logs when the service goes up --> down. That should be in the cinder-volumes logs.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, May 11, 2021 at 6:05 PM ManuParra <<a href="mailto:mparra@iaa.es">mparra@iaa.es</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Thanks, I have restarted the service and I see that after a few minutes then cinder-volume service goes down again when I check it with the command openstack volume service list. <br>
The host/service that contains the cinder-volumes is rbd:volumes@ceph-rbd that is RDB in Ceph, so the problem does not come from Cinder, rather from Ceph or from the RDB (Ceph) pools that stores the volumes. I have checked Ceph and the status of everything is correct, no errors or warnings. <br>
The error I have is that cinder can’t connect to rbd:volumes@ceph-rbd. Any further suggestions? Thanks in advance.<br>
Kind regards.<br>
<br>
> On 11 May 2021, at 22:30, Eugen Block <<a href="mailto:eblock@nde.ag" target="_blank">eblock@nde.ag</a>> wrote:<br>
> <br>
> Hi,<br>
> <br>
> so restart the volume service;-)<br>
> <br>
> systemctl restart openstack-cinder-volume.service<br>
> <br>
> <br>
> Zitat von ManuParra <<a href="mailto:mparra@iaa.es" target="_blank">mparra@iaa.es</a>>:<br>
> <br>
>> Dear OpenStack community,<br>
>> <br>
>> I have encountered a problem a few days ago and that is that when creating new volumes with:<br>
>> <br>
>> "openstack volume create --size 20 testmv"<br>
>> <br>
>> the volume creation status shows an error. If I go to the error log detail it indicates:<br>
>> <br>
>> "Schedule allocate volume: Could not find any available weighted backend".<br>
>> <br>
>> Indeed then I go to the cinder log and it indicates:<br>
>> <br>
>> "volume service is down - host: rbd:volumes@ceph-rbd”.<br>
>> <br>
>> I check with:<br>
>> <br>
>> "openstack volume service list” in which state are the services and I see that indeed this happens:<br>
>> <br>
>> <br>
>> | cinder-volume | rbd:volumes@ceph-rbd | nova | enabled | down | 2021-04-29T09:48:42.000000 |<br>
>> <br>
>> And stopped since 2021-04-29 !<br>
>> <br>
>> I have checked Ceph (monitors,managers, osds. etc) and there are no problems with the Ceph BackEnd, everything is apparently working.<br>
>> <br>
>> This happened after an uncontrolled outage.So my question is how do I restart only cinder-volumes (I also have cinder-backup, cinder-scheduler but they are ok).<br>
>> <br>
>> Thank you very much in advance. Regards.<br>
> <br>
> <br>
> <br>
> <br>
<br>
<br>
</blockquote></div>