[Users] affects of changing compatibility setting on running cluster

[Itamar Heim]

On 03/12/2014 10:11 AM, Sven Kieske wrote:
>
>
> Am 11.03.2014 17:38, schrieb Itamar Heim:
>>
>> i understood this to "you can't use 4.14 with 3.4.0".
>
> Well I examined BZ 1067096 again, this is what did not work:
>
> Steps to Reproduce:
> 1.  Run Engine 3.3 Compatibility level 3.2 or 3.3
> 2.  Add node (vdsm 4.14)
>
> Actual results:
> Host is installed with VDSM version (4.14) and cannot join cluster which
> is compatible with VDSM versions [4.13, 4.9, 4.11, 4.12, 4.10].
>
> Pay attention to the engine version, it states 3.3. not 3.4.0
>
> So my conclusion is, you can't install vdsm 4.14. when you want
> to use engine 3.3.
>
> Am I reading something wrong?
>
> Here's the link again:
> https://bugzilla.redhat.com/show_bug.cgi?id=1067096#c0
>

this can be fixed via engine config, but is not supposed to be needed, 
as vdsm is supposed to have
vdsm/dsaversion.py.in:    'supportedENGINEs': ['3.0', '3.1', '3.2', 
'3.3', '3.4'],

danken/eli - thoughts?