Here is the roadmap http://docs.ceph.com/docs/master/releases/
EOL is estimated. Or this is what i think of estimated retirement.
We are already running hammer. No issues here, except for cahce tier pool with the promotion bug. Don't think the fix was backported to hammer as the time of writing, although it might. Didn't test it again.
Are there stability issues with infernalis. As i know thw difference between a LTS and a non-LTS release is that LTS has a longer life span and fixes will be backported so no need for upgrading to the next release to ger the patches. I thought Infernalis should be as stable as Hammer because is an intermediarry release between LTS and not cutting-edge or nightly release.
So in your expirience no problem encountered in upgrading from hammer to infernalis as i understand right?
On Wed, Mar 2, 2016 at 9:32 AM, Mihai Gheorghe <mcapsali@xxxxxxxxx> wrote:
> Hi,
>
> I've got two questions!
>
> First. We are currently running Hammer in production. You are thinking of
> upgrading to Infernalis. Should we upgrade now or wait for the next LTS,
> Jewel? On ceph releases i can see Hammers EOL is estimated in november 2016
> while Infernalis is June 2016.
I don't know where you got this information but it seems wrong. From
previous history the last 2 LTS versions are supported (currently
Firefly and Hammer). That would mean that Hammer should be supported
until the L version is released. Infernalis should be supported until
the release of Jewel.
> If i follow the upgrade procedure there should not be any problems, right?
So far we've upgraded every version without issues. But past performance...
>
> Second. When Jewel LTS will be released, does anybody know if we can upgrade
> straight from Hammer or first we need to upgrade to Infernalis and then
> Jewel. If the latter is the case i see no reason not to upgrade now to
> Infernalis and wait for Jewel release to upgrade again. This way we can take
> advantage of the new features in Infernalis.
Usually you can upgrade LTS -> LTS, so you should be able to go from
Hammer to Jewel. The same should be true to Infernalis. However
minimum versions may apply (like you need at least version 0.94.4 to
upgrade to infernalis).
>
> Also what is the correct order of upgrading? Mons first then OSDs?
Usually mons, then osds and then mds and radosgw. But if there's
something different it'll be published in the release notes.
>
> Any input on the matter would be greatly apreciated.
If it was me, depending on what you value most: if you prefer
stability and a conservative approach I'd install Hammer. If you
prefer features and performance I'd install Infernalis.
As an example all major players (like Redhat, Fujitsu, Suse, etc) use
only the LTS versions for their distros.
>
> Thank you.
>
>
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