[Gluster-devel] Upgrading Gluster

[Alex Attarian]

Anand, how stable is 3.0 right now? Would you advise to go with 2.0.8 or 3.0
on a production environment? I've been running 2.0.4 and wanted to upgrade
to 2.0.8 but figured if I'm going through the hassle, I could go to 3.0.
Only if it's as stable though.

Thanks,
Alex

On Wed, Dec 9, 2009 at 4:14 AM, Anand Babu Periasamy <ab at gluster.com> wrote:

> Brian Hirt wrote:
>
>> I have a question about upgrading, but it's not really answered in
>> http://gluster.com/community/documentation/index.php/GlusterFS_General_FAQ#Will_GlusterFS_be_upward_compatible.3F
>>
>> I have a 4 node system, with AFR/Distribute.   Can I shut down the servers
>> one at a time,  upgrade from 2.0.6 to 2.0.8 and restart the node.  After
>> doing this process on all four servers will everything be running okay?
>>
>> Also, a bit longer term, migrating from 2.x to the soon to be released 3.x
>> branch, will this method work as well?  Once all servers have been upgraded,
>> will they automatically renegotiate to the most recent protocol or does the
>> entire cluster need to be shut down and restarted.
>>
> Hi Brian,
> You can do that between 2.0.6 to 2.0.8. All 2.0.x will be compatible to
> each other. Though I recommend upgrading all servers at once. To upgrade to
> 3, you need to upgrade all your servers and clients. Backend data layout is
> same. After upgrading the installation, you restart GlusterFS servers and
> remount the clients.
>
> Dynamic volume management (to add, remove, suspend) servers without
> requiring re-mount is going to be the key focus of 3.1 release.
>
>
> --
> Anand Babu Periasamy
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