[ovirt-users] Solved: Re: Failed to connect Host to the Storage Domains hosted_storage.

--Sig_/X22DB.eulTCYHh1dWExXoR9 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Fri, 22 Jul 2016 18:21:15 +0200 Simone wrote: ST> On Fri, Jul 22, 2016 at 4:48 PM, Ralf Schenk <rs(a)databay.de&gt; wrote: ST>=20 ST> > Hello, ST> > ST> > I also see from the logs that all your Storage-Domains that work are ST> > mounted as nfsVersion=3D'V4' but ovirt-nfs.netsec:/ovirt/hosted-engin= e is ST> > mounted as nfsVersion=3D'null'. ST> > =20 ST>=20 ST> Hi Robert, ST> unfortunately Ralf is right: I reproduced the issue. ST>=20 ST> The auto-import procedure for the hosted-engine storage domain ignores = the ST> nfsVersion parameter and so we don't have a value for that in the engin= e DB. ST> On hosted-engine hosts, the agent mounts the hosted-engine storage doma= in ST> before the engine and so everything is fine since the agent knows that = it's ST> nfsv4. ST>=20 ST> The issue comes with the hosts of that datacenter not involved in ST> hosted-engine: in this case the engine simply tries to mount without ST> the nfsVersion parameter and so, if the NFS server cannot be access over ST> nfsv3, the mount could fail and the host will be declared as not operat= ion. ST>=20 ST> I opened a ticket to track it: ST> https://bugzilla.redhat.com/show_bug.cgi?id=3D1359265 ST>=20 ST> If you need a quick fix you can: ST> - fix the configuration of your storage server to allow it to be access= ed ST> also over nfsv3 ST> - edit the configuration of the storage connection in the engine DB on = the ST> engine VM to add the missing parameter. Something like: ST> # sudo -u postgresl psql ST> \c engine; ST> select * from storage_server_connections; ST> UPDATE storage_server_connections SET nfs_version =3D '4' WHERE connec= tion =3D ST> 'ovirt-nfs.netsec:/ovirt/hosted-engine'; ST> commit; ST> select * from storage_server_connections; Thanks for that workaround. I've added it to the bugzilla. The easy manual workaround I tried was: # mkdir /rhev/data-center/mnt/ovirt-nfs.localdomain:_ovirt_hosted-engine # /usr/bin/mount -t nfs -o soft,nosharecache,timeo=3D600,retrans=3D6,nfsver= s=3D4 \ ovirt-nfs.localdomain:/ovirt/hosted-engine \ /rhev/data-center/mnt/ovirt-nfs.netsec:_ovirt_hosted-engine which got the hosts operational again. Thanks for all the help! Robert --=20 Senior Software Engineer @ Parsons --Sig_/X22DB.eulTCYHh1dWExXoR9 Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature --Sig_/X22DB.eulTCYHh1dWExXoR9--