Gluster users - Sep 2017 - Gluster Server upgrade from 3.5 to 3.8 in online upgrade mode

I was looking to upgrade Gluster server from ver 3.5.X to 3.8.X.

I have already tried it in offline upgrade mode and that works, I am 
interested in knowing if this upgrade of gluster server version can be 
in online upgrade mode.

Many thanks in advance.

-- 
- Hemant Mamtora

Nope, not gonna work... I could never go even from 3.6. to 3.7 without
downtime cause of the settings change, see:

http://lists.gluster.org/pipermail/gluster-users.old/2015-September/023470.html

Even when changing options in the older 3.6.x I had installed, my new
3.7.x server would not connect, so had to pretty much stop gluster in
all servers, update to 3.7.x offline, then start gluster and all
servers would see each other just fine.

Diego

On Tue, Sep 12, 2017 at 6:15 PM, Hemant Mamtora <hemantrm at hotmail.com>
wrote:
> I was looking to upgrade Gluster server from ver 3.5.X to 3.8.X.
>
> I have already tried it in offline upgrade mode and that works, I am
> interested in knowing if this upgrade of gluster server version can be
> in online upgrade mode.
>
> Many thanks in advance.
>
> --
> - Hemant Mamtora
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://lists.gluster.org/mailman/listinfo/gluster-users

Thanks for your reply.

So the way I understand is that it can be upgraded but with a downtime, 
which means that there are no clients writing to this gluster volume, as 
the volume is stopped.

But post a upgrade we will still have the data on the gluster volume 
that we had before the upgrade(but with downtime).

- Hemant


On 9/13/17 2:33 PM, Diego Remolina wrote:
> Nope, not gonna work... I could never go even from 3.6. to 3.7 without
> downtime cause of the settings change, see:
>
>
http://lists.gluster.org/pipermail/gluster-users.old/2015-September/023470.html
>
> Even when changing options in the older 3.6.x I had installed, my new
> 3.7.x server would not connect, so had to pretty much stop gluster in
> all servers, update to 3.7.x offline, then start gluster and all
> servers would see each other just fine.
>
> Diego
>
> On Tue, Sep 12, 2017 at 6:15 PM, Hemant Mamtora <hemantrm at
hotmail.com> wrote:
>> I was looking to upgrade Gluster server from ver 3.5.X to 3.8.X.
>>
>> I have already tried it in offline upgrade mode and that works, I am
>> interested in knowing if this upgrade of gluster server version can be
>> in online upgrade mode.
>>
>> Many thanks in advance.
>>
>> --
>> - Hemant Mamtora
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://lists.gluster.org/mailman/listinfo/gluster-users
-- 
- Hemant Mamtora