[Users] oVirt 3.5 planning

Itamar Heim iheim at redhat.com
Tue Feb 25 11:02:38 UTC 2014


On 02/25/2014 12:43 PM, Barak Azulay wrote:
>
>
> ----- Original Message -----
>> From: "Itamar Heim" <iheim at redhat.com>
>> To: "Sven Kieske" <S.Kieske at mittwald.de>, users at ovirt.org, "Eli Mesika" <emesika at redhat.com>, "Barak Azulay"
>> <bazulay at redhat.com>
>> Sent: Tuesday, February 25, 2014 12:14:48 PM
>> Subject: Re: [Users] oVirt 3.5 planning
>>
>> On 02/25/2014 11:55 AM, Sven Kieske wrote:
>>> RFE] Allow to perform fence operations from engine (or from a host in
>>> another DC)
>>> the functionality of the current fencing feature is so crippled that
>>> it is plain useless in local storage data centers, because you can't
>>> use it at all (no other fencing host in cluster)!
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1054778
>>
>> eli - thoughts on above?
>>
>>
>
> The fencing mechanism certainly does not work for local storage domain,
> It looks like this was neglected since the fencing mechanism was designed to prevent data corruption .. and this use case (single host in DC) we are not worried about it.
>
> In first look it looks like an easy implementation - just to add a system wide proxy selection policy,
> However when thinking on adding this option  I can think of a few issues that needs to be discussed first:
> - Can we assume network connectivity between hosts in different DCs ?
> - If this is not the case than can/should we enable specific DCs that we know has this connectivity ?

i don't think we have to assume this, just to allow the admin to 
configure on top of DC and cluster scopes, also an 'any host' scope if 
applicable for them.

>
> Or do we just select a system wide proxy and try to fence ... this might have timeout issues in case there is no connectivity ... and fencing might take a long time to perform.
>
>
> Thanks
> Barak Azulay
>




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