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@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@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@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@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@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
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