[cdwg] Make Lustre 2.5 a maintenance release?

[John Carrier]

Chris,

Cray supports making Lustre 2.5 a maintenance release if it has the complete HSM support from CEA.   

My personal concern is that if we are uncertain that HSM will be complete in 2.5, then we run the risk of another bait and switch.  2.4 is a significant enough shift in the Lustre code base that I think it is really important that we get people moving from the 2.1 to 2.4 branches and not delaying a 2.4 transition waiting for 2.5 or whatever release has the HSM code.  Your suggestion of describing a shortened maintenance window between 2.4 and the HSM release makes sense.

--jc



-----Original Message-----
From: cdwg-bounces at lists.opensfs.org [mailto:cdwg-bounces at lists.opensfs.org] On Behalf Of Christopher J. Morrone
Sent: Tuesday, June 04, 2013 11:23 AM
To: cdwg at lists.opensfs.org
Subject: Re: [cdwg] Make Lustre 2.5 a maintenance release?

Folks,

Since there have been no responses, this will not be discussed in tomorrow's meeting.  This is an important decision, and one that we need to make soon, and advertise well.  If this is what your organization wants, please speak up.

Chris

On 05/22/2013 10:53 AM, Christopher J. Morrone wrote:
> Lustre community:
>
> As we all know, HSM is a Lustre feature that is desired by many, but 
> was not fully completed in time for the Lustre 2.4 release.  As a 
> result, many folks are wondering if Lustre 2.4 is really the best 
> branch to support for a long period of time (18 or more months).
>
> HSM is very likely to be completed for 2.5, and multiple vendors and 
> organizations are planning to move to that version, and desire long 
> term support for that branch.
>
> On the other hand, we have for some time been advertising quite widely 
> that Lustre 2.4 will begin the next significant maintenance branch, 
> and some organizations have built there plans around that guidance.
>
> I would like to officially propose the following action:
>
> 1) Announce that Lustre 2.4 will have maintenance releases as planned, 
> but the maintenance window has been shortened to just 6 months.  In 
> other words, we will only expect to see maintenance releases on Lustre
> 2.4 branch for roughly 6 months.
>
> 2) Announce that the Lustre 2.5 branch will be long term maintenance 
> branch.
>
> Are there any objections?  Any adjustments that should be made to that 
> statement?
>
> Chris
> .
>

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