[ovirt-users] ovirt don't give "initiator name" to cinder when I'm launching a VM with a cinder volume

[herve]

Thanks a lot!

I beleived lvm backend was much easier to implement than ceph an 
obviously should work if ceph was supported...
that was my mistake....
Regarding the behvior I got the backend lvm is almost working anyway - )
  I could have been searching during a lot of time ... I'm going to try 
it with ceph...

Thanks again for your quick answer.

Herve.


On 03/08/2017 12:18 PM, Nir Soffer wrote:
> On Wed, Mar 8, 2017 at 10:04 AM, herve <rv.morin.93 at gmail.com> wrote:
>> dear ovirt user community,
>>
>> I can't sort out an ovirt issue I got with cinder for weeks, I hope someone
>> could give me a clue...
>>  From mi ovirt manager 4.1, I can create and delete a cinder volume or attach
>> and detach a cider vomume from an ovirt  VM.
>>
>> The problem is I never had been able to launch an ovirt VM with a cinder
>> volume attached to it.
>> I just got a simple message from ovir web gui:  "Failed to run VM
>> centoscinder (User: admin at internal-authz)".
>>
>> what i am using is
>> a RDO newton release of openstack. the backend of cinder is a local lvm,
> Here is your problem, ovirt supports only ceph storage with cinder.
>
> We may add more storage types in the future.
>
> Nir
>
>> and
>> the openstack VMs can use the cinder volumes from other compute node.
>> from the ovirt 4.1 fedora 24 server:
>> [root at rhevf24 ~]# rpm -qa | grep ovirt-engine-4
>> ovirt-engine-4.1.0.4-1.fc24.noarch
>> ovirt-engine-setup-plugin-ovirt-engine-4.1.0.4-1.fc24.noarch
>> [root at rhevf24 ~]#
>>
>> from the ovirt server , through the iscsiadm command,  I can see for example
>> the 2 disks attached to 2 diffents  openstack instances,
>> but not the one I just created from ovirt which is attached to nothing ,
>> from the openstack rdo point of view.
>> [root at rhevf24 iscsi]# iscsiadm -m discovery -t sendtargets -p 192.168.122.36
>> 192.168.122.36:3260,1
>> iqn.2010-10.org.openstack:volume-f4c6c55c-e383-4781-8d24-d41b55870d29
>> 192.168.122.36:3260,1
>> iqn.2010-10.org.openstack:volume-58844340-741e-45da-9aa7-b0ed08391df3
>>
>> as I said previously From ovirt I can create /delete in cinder and
>> attach/detach volumes to ovirt VMs I don't get any troubles with that.
>>
>> ----
>> in ovirt engine.log almost nothing , except it can't aquire lock.. but in
>> openstack cinder, and with tcpdump I get more informations.
>> tcpdump give me when ovirt intent the iscsi connection something like:
>> json.key == "os-initialize_connection"
>> {.  "os-initialize_connection" : {.    "connector"  :  {  }, },}
>>
>> and I get from "tail -f  /var/log/cinder/volume.log" :
>> 2017-03-07 16:45:06.889 3856 ERROR cinder.volume.targets.iscsi
>> [req-b6d39a14-f9ea-4552-91e7-5db811217b1e dd1dd33789274fb7ba228c75a07c0e94
>> 0f68893965dd4f5dafd319cbffb33bb4 - default default] The volume driver
>> requires the iSCSI initiator name in the connector.
>> ...
>> ...
>> 2017-03-07 16:45:06.891 3856 ERROR oslo_messaging.rpc.server InvalidInput:
>> Invalid input received: Connector doesn't have required information:
>> initiator
>>
>>
>> So it looks like I didn't get  or I can't provide the initiator name I want
>> to be connected to.
>> Cinder can't obviously guess which one I want. that's more or less what's
>> the cinder's logs are telling me.
>>
>> I have searched for a long time in internet, it looks like  at least since
>> ovirt 3.6, cinder is ont anymore an issue, and can even be integrated with a
>> ceph back end to ovirt...
>> cinder model an client are installed in the ovirt server...
>>
>> Somebody get any clue to tell ma where i made a mistake in the cinder
>> integration with ovirt , which seems to be correct regarding the
>> create/delete attach /detach volume behavior...
>>
>> Thank you
>>
>> Herve
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users