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From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: How long will we support Hadoop 0.20.2?
Date Wed, 05 Mar 2014 18:01:09 GMT
It has been a while since we talked about this. How about we start an N
month clock starting from today. N can be 3 months not 6.


On Wed, Mar 5, 2014 at 12:09 PM, Ashutosh Chauhan <hashutosh@apache.org>wrote:

> ~6 months have since gone by. Branch 0.13 has now been cut. Is it OK now to
> drop 20 shims from trunk. Or, Ed are you still planning to use Hive on
> Hadoop 0.20.2,  6 months from now (or whenever 0.14 gets released)
>
> Thanks,
> Ashutosh
>
>
> On Thu, Sep 19, 2013 at 7:11 PM, Edward Capriolo <edlinuxguru@gmail.com
> >wrote:
>
> > Remeber that the shim layer will continue to exist.
> >
> > This is something I would consider:
> >
> > In 6 months from day x hive will no longer default to building against
> > hadoop 0.20. Hadoop 0.20.x will not be officially supported, meaning that
> > our build bots will no longer test against 0.20.x. Compatibility with
> > hadoop 0.20.x will not be a requirement for any patch. The 0.20 shims
> will
> > still remain in trunk. Committers could still accept patches to support
> > 0.20 as long as they are not detrimental to current supported versions.
> >
> > What this would mean is if i checked out hive trunk in 5 months and 29
> days
> > after day x it would still build , compile , and run on hadoop 0.20 and
> be
> > feature complete. At the 6 month mark i lose that guarantee.
> >
> > On Thursday, September 19, 2013, Edward Capriolo <edlinuxguru@gmail.com>
> > wrote:
> > > "+1 to dropping Hadoop 0.20.2 support in Hive 0.13, which given that
> Hive
> > > 0.12 has just branched means it isn't likely that Hive 0.13 will come
> out
> > > in the next 6 months."
> > >
> > > LOL
> > > -1. I was not suggesting we drop 0.20.2 support now, so the next hive
> > version 0.13 won't have it. That would essentially mean we are dropping
> it
> > now.
> > >
> > > I was suggesting dropping the 0.20.2 support in 6 months, so whatever
> > version STARTED won't have it.
> > >
> > > On Thu, Sep 19, 2013 at 11:41 AM, Owen O'Malley <omalley@apache.org>
> > wrote:
> > >>
> > >> +1 to dropping Hadoop 0.20.2 support in Hive 0.13, which given that
> Hive
> > >> 0.12 has just branched means it isn't likely that Hive 0.13 will come
> > out
> > >> in the next 6 months.
> > >>
> > >> -- Owen
> > >>
> > >>
> > >> On Thu, Sep 19, 2013 at 8:35 AM, Brock Noland <brock@cloudera.com>
> > wrote:
> > >>
> > >> > First off, I have to apologize, I didn't know there would be such
> > >> > passions on both sides of the 0.20.2 argument!
> > >> >
> > >> > On Thu, Sep 19, 2013 at 10:11 AM, Edward Capriolo <
> > edlinuxguru@gmail.com>
> > >> > wrote:
> > >> > > That rant being done,
> > >> >
> > >> > No worries man, Hadoop versions are something worth ranting about.
> > >> > IMHO Hadoop has a history of changing API's and breaking end users.
> > >> > However, I feel this is improving.
> > >> >
> > >> > > we can not and should not support hadoop 0.20.2
> > >> > > forever. Discontinuing hadoop 0.20.2 in say 6 months might be
> > reasonable,
> > >> > > but I think dropping it on the floor due to a one line change
for
> a
> > >> > missing
> > >> > > convenience constructor is a bit knee-jerk.
> > >> >
> > >> > Very sorry if I came across with the opinion that we should "drop
> > >> > 0.20.2 now" because of the constructor issue. The issue brought up
> > >> > 0.20.2's age in my mind and the logical next step is to ask how long
> > >> > we plan on supporting it! :) I like the time bounding idea and I
> feel
> > >> > 6 months is reasonable. FWIW, the 1.X series is stable for my needs.
> > >> >
> > >> > Brock
> > >> >
> > >
> > >
> >
>

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