[ovirt-users] Proper way to change and persist vdsm configuration options

[ybronhei]

On 08/05/2014 08:12 AM, Trey Dockendorf wrote:
> I'll file BZ.  As far as I can recall this has been an issue since 3.3.x as
please send a link to the BZ, or assign me there
> I have been using Puppet to modify values and have had to rerun Puppet
> after installing a node via GUI and when performing update from GUI.  Given
> that it has occurred when VDSM version didn't change on the node it seems
> likely to be something being done by Python code that bootstraps a node and
> performs the other tasks.  I won't have any systems available to test with
> for a few days.  New hardware specifically for our oVirt deployment is on
> order so should be able to more thoroughly debug and capture logs at that
> time.
>
> Would using vdsm-reg be a better solution for adding new nodes?  I only
> tried using vdsm-reg once and it went very poorly...lots of missing
> dependencies not pulled in from yum install I had to install manually via
> yum.  Then the node was auto added to newest cluster with no ability to
> change the cluster.  Be happy to debug that too if there's some docs that
> outline the expected behavior.
>
> Using vdsm-reg or something similar seems like a better fit for puppet
> deployed nodes, as opposed to requiring GUI steps to add the node.
please consult Fabian\Douglas on using vdsm-reg, though, I don't think 
it will do any change. after vdsm-reg engine still runs host-deploy 
process and this might overrides your vdsm.conf (which I need to test)
>
> Thanks
> - Trey
> On Aug 4, 2014 5:53 AM, "ybronhei" <ybronhei at redhat.com> wrote:
>
>> On 07/31/2014 01:28 AM, Trey Dockendorf wrote:
>>
>>> I'm running ovirt nodes that are stock CentOS 6.5 systems with VDSM
>>> installed.  I am using iSER to do iSCSI over RDMA and to make that
>>> work I have to modify /etc/vdsm/vdsm.conf to include the following:
>>>
>>> [irs]
>>> iscsi_default_ifaces = iser,default
>>>
>>> I've noticed that any time I upgrade a node from the engine web
>>> interface that changes to vdsm.conf are wiped out.  I don't know if
>>> this is being done by the configuration code or by the vdsm package.
>>> Is there a more reliable way to ensure changes to vdsm.conf are NOT
>>> removed automatically?
>>>
>>
>> Hey,
>>
>> vdsm.conf shouldn't wiped out and shouldn't changed at all during upgrade.
>> other related conf files (such as libvirtd.conf) might be overrided to keep
>> defaults configurations for vdsm. but vdsm.conf should persist with user's
>> modification. from my check, regular yum upgrade doesn't touch vdsm.conf
>>
>> Douglas can you verify that with node upgrade? might be specific to that
>> flow..
>>
>> Trey, can file a bugzilla on that and describe your steps there?
>>
>> Thanks
>>
>> Yaniv Bronhaim,
>>
>>>
>>> Thanks,
>>> - Trey
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>
>> --
>> Yaniv Bronhaim.
>>
>


-- 
Yaniv Bronhaim.