[ovirt-users] GlusterFS Distributed Replicate HA with KeepAlived

[Punit Dambiwal]

Hi Humble,

Thanks for the update...the mount point is the ip address to mount the
gluster volume,so if this server goes down...all the VM's will pause :-

[image: Inline image 1]

Some one from community suggest me to use the localhost instead of the ip
address for HA....but i have doubt if i use localhost...then whenever any
node goes down the VM's of the failed node will not migrate to another
node... ??

http://lists.ovirt.org/pipermail/users/2014-July/025728.html

Thanks,
Punit Dambiwal




On Tue, Aug 19, 2014 at 8:23 PM, Humble Devassy Chirammal <
humble.devassy at gmail.com> wrote:

> Hi,
>
>
> >>
> ....but i want the way from the ovirt portal...if possible ??
> >>
>
>
> Yes, its possible.
>
> >>
> Also in my case if the mount point HV node goes down...all the VM's will
> pause...and once the node come up..i need to manually poweroff the VM's and
> manually start again...
> >>
>
> I failed to interpret  'mount point' here. If you are talking about
> 'gluster' volume server , the VM behaviour depends on the gluster
> configuration which indirectly depend on the quorum configuration and
> volume configuration. If there is an error from underlying storage ( here
> gluster volume) VM can pause , however latest versions of ovirt support
> auto resume.
>
> >>
> Someone from community suggest me to use the localhost as mount point if
> you are using compute & storage on the same node...but i doubt about the
> failover...that means if any node goes down....how the VM migration on
> another node will happen ??
> >>
>
> If you are using local data center the VM migration can't happen. You have
> to configure a storage domain which can be accessed from your Ovirt
> Cluster  Hosts .
>
> Please have a look at
> http://www.ovirt.org/Gluster_Storage_Domain_Reference which talks about
> the recommended way of configuring it.
>
> --Humble
>
>
> On Tue, Aug 19, 2014 at 7:26 AM, Punit Dambiwal <hypunit at gmail.com> wrote:
>
>> Hi Humble,
>>
>> Thanks for the updates....but i want the way from the ovirt portal...if
>> possible ??
>>
>> Also in my case if the mount point HV node goes down...all the VM's will
>> pause...and once the node come up..i need to manually poweroff the VM's and
>> manually start again...
>>
>> Someone from community suggest me to use the localhost as mount point if
>> you are using compute & storage on the same node...but i doubt about the
>> failover...that means if any node goes down....how the VM migration on
>> another node will happen ??
>>
>> Thanks,
>> Punit
>>
>>
>> On Mon, Aug 18, 2014 at 9:37 PM, Humble Devassy Chirammal <
>> humble.devassy at gmail.com> wrote:
>>
>>> Hi Punit,
>>>
>>>
>>> If you are using gluster volume for virt store, it is always recommend
>>> to enable /considering virt store use case mentioned here :
>>> http://gluster.org/documentation/use_cases/Virt-store-usecase/
>>>
>>> Regarding how to add bricks to the volume , you can refer #
>>> https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.1/html/Administration_Guide/sect-User_Guide-Managing_Volumes-Expanding.html
>>>
>>> The virt store use case enables quorum which ideally resolves the
>>> possibilities of split brain.
>>>
>>> Please feel free to revert if you come across any issues.
>>>
>>> --Humble
>>>
>>>
>>> On Fri, Aug 15, 2014 at 12:05 PM, Punit Dambiwal <hypunit at gmail.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> I have 4 node GlusterFS Distributed Replicate volume...the same 4 host
>>>> node i am using for compute purpose....now i want to make it HA....so if
>>>> any host goes down .....VM will not pause and it will migrate to another
>>>> available node...
>>>>
>>>> 1. Can any one have any document or reference to do this with
>>>> keepalived...
>>>> 2. I have one more node as spare...so if any host goes down and can not
>>>> come up again because of any HW failure...i can add it...but i didn't find
>>>> any way to add these bricks to volume...??
>>>>
>>>> Thanks,
>>>> Punit
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>>
>>>
>>
>
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