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From Arun C Murthy <...@hortonworks.com>
Subject Re: Next releases
Date Wed, 20 Nov 2013 14:38:03 GMT

 I'm glad to see we are converging. I'll update the Roadmap wiki with details about major/minor/patch

 Here is a straight-forward approach for now: I'll just roll contents of branch-2.2 as a 2.3-rc0
candidate right-away. This way we don't have to get embroiled in details of individual patches
(there are too many). Next up, I'll roll 2.4 in December.



On Nov 13, 2013, at 1:55 PM, Jason Lowe <jlowe@yahoo-inc.com> wrote:

> I think a lot of confusion comes from the fact that the 2.x line is starting to mature.
 Before this there wasn't such a big contention of what went into patch vs. minor releases
and often the lines were blurred between the two.  However now we have significant customers
and products starting to use 2.x as a base, which means we need to start treating it like
we treat 1.x.  That means getting serious about what we should put into a patch release vs.
what we postpone to a minor release.
> Here's my $0.02 on recent proposals:
> +1 to releasing more often in general.  A lot of the rush to put changes into a patch
release is because it can be a very long time between any kind of release.  If minor releases
are more frequent then I hope there would be less of a need to rush something or hold up a
> +1 to limiting checkins of patch releases to Blockers/Criticals.  If necessary committers
check into trunk/branch-2 only and defer to the patch release manager for the patch release
merge.  Then there should be fewer surprises for everyone what ended up in a patch release
and less likely the patch release becomes destabilized from the sheer amount of code churn.
 Maybe this won't be necessary if everyone understands that the patch release isn't the only
way to get a change out in timely manner.
> As for 2.2.1, again I think it's expectations for what that release means.  If it's really
just a patch release then there shouldn't be features in it and tons of code churn, but I
think many were treating it as the next vehicle to deliver changes in general.  If we think
2.2.1 is just as good or better than 2.2.0 then let's wrap it up and move to a more disciplined
approach for subsequent patch releases and more frequent minor releases.
> Jason
> On 11/13/2013 12:10 PM, Arun C Murthy wrote:
>> On Nov 12, 2013, at 1:54 PM, Todd Lipcon <todd@cloudera.com> wrote:
>>> On Mon, Nov 11, 2013 at 2:57 PM, Colin McCabe <cmccabe@alumni.cmu.edu>wrote:
>>>> To be honest, I'm not aware of anything in 2.2.1 that shouldn't be
>>>> there.  However, I have only been following the HDFS and common side
>>>> of things so I may not have the full picture.  Arun, can you give a
>>>> specific example of something you'd like to "blow away"?
>> There are bunch of issues in YARN/MapReduce which clearly aren't *critical*, similarly
in HDFS a cursory glance showed up some *enhancements*/*improvements* in CHANGES.txt which
aren't necessary for a patch release, plus things like:
>> 	HADOOP-9623	
>> Update jets3t dependency to 0.9.0
>> Having said that, the HDFS devs know their code the best.
>>> I agree with Colin. If we've been backporting things into a patch release
>>> (third version component) which don't belong, we should explicitly call out
>>> those patches, so we can learn from our mistakes and have a discussion
>>> about what belongs.
>> Good point.
>> Here is a straw man proposal:
>> ----
>> A patch (third version) release should only include *blocker* bugs which are critical
from an operational, security or data-integrity issues.
>> This way, we can ensure that a minor series release (2.2.x or 2.3.x or 2.4.x) is
always release-able, and more importantly, deploy-able at any point in time.
>> ----
>> Sandy did bring up a related point about timing of releases and the urge for everyone
to cram features/fixes into a dot release.
>> So, we could remedy that situation by doing a release every 4-6 weeks (2.3, 2.4 etc.)
and keep the patch releases limited to blocker bugs.
>> Thoughts?
>> thanks,
>> Arun

Arun C. Murthy
Hortonworks Inc.

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