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Date: Fri, 2 Aug 2013 14:31:40 -0400
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Subject: Re: Hadoop 2.0 Support for Accumulo 1.4 Branch
From: Christopher <ctubbsii@apache.org>
To: Accumulo Dev List <dev@accumulo.apache.org>
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Would it be reasonable to consider a version of 1.4 that breaks
compatibility with 0.20? I'm not really a fan of this, personally, but
am curious what others think.

--
Christopher L Tubbs II
http://gravatar.com/ctubbsii


On Fri, Aug 2, 2013 at 2:22 PM, Joey Echeverria <joey@cloudera.com> wrote:
> Sorry for the delay, it's been one of those weeks.
>
> The current version would probably not be backwards compatible to
> 0.20.2 just based on changes in dependencies. We're looking right now
> to see how hard it is to have three way compatibility (0.20, 1.0,
> 2.0).
>
> -Joey
>
> On Thu, Aug 1, 2013 at 7:33 PM, Dave Marion <dlmarion@comcast.net> wrote:
>> Any update?
>>
>> -----Original Message-----
>> From: Joey Echeverria [mailto:joey@cloudera.com]
>> Sent: Monday, July 29, 2013 1:24 PM
>> To: dev@accumulo.apache.org
>> Subject: Re: Hadoop 2.0 Support for Accumulo 1.4 Branch
>>
>> We're testing this today. I'll report back what we find.
>>
>>
>> -Joey
>> =97
>> Sent from Mailbox for iPhone
>>
>> On Fri, Jul 26, 2013 at 3:34 PM, null <dlmarion@comcast.net> wrote:
>>
>>> "Will 1.4 still work with 0.20 with these patches?"
>>> Great point Billie.
>>> ----- Original Message -----
>>> From: "Billie Rinaldi" <billie.rinaldi@gmail.com>
>>> To: dev@accumulo.apache.org
>>> Sent: Friday, July 26, 2013 3:02:41 PM
>>> Subject: Re: Hadoop 2.0 Support for Accumulo 1.4 Branch On Fri, Jul
>>> 26, 2013 at 11:33 AM, Joey Echeverria <joey@cloudera.com> wrote:
>>>> > If these patches are going to be included with 1.4.4 or 1.4.5, I
>>>> > would
>>>> like
>>>> > to see the following test run using CDH4 on at least a 5 node cluste=
r.
>>>> >  More nodes would be better.
>>>> >
>>>> >   * unit test
>>>> >   * Functional test
>>>> >   * 24 hr Continuous ingest + verification
>>>> >   * 24 hr Continuous ingest + verification + agitation
>>>> >   * 24 hr Random walk
>>>> >   * 24 hr Random walk + agitation
>>>> >
>>>> > I may be able to assist with this, but I can not make any promises.
>>>>
>>>> Sure thing. Is there already a write-up on running this full battery
>>>> of tests? I have a 10 node cluster that I can use for this.
>>>>
>>>>
>>>> > Great.  I think this would be a good patch for 1.4.   I assume that
>>>> > if a user stays with Hadoop 1 there are no dependency changes?
>>>>
>>>> Yup. It works the same way as 1.5 where all of the dependency changes
>>>> are in a Hadoop 2.0 profile.
>>>>
>>> In 1.5.0, we gave up on compatibility with 0.20 (and early versions of
>>> 1.0) to make the compatibility requirements simpler; we ended up
>>> without dependency changes in the hadoop version profiles.  Will 1.4
>>> still work with 0.20 with these patches?  If there are dependency
>>> changes in the profiles, 1.4 would have to be compiled against a
>>> hadoop version compatible with the running version of hadoop, correct?
>>> We had some trouble in the
>>> 1.5 release process with figuring out how to provide multiple binary
>>> artifacts (each compiled against a different version of hadoop) for
>>> the same release.  Just something we should consider before we are in
>>> the midst of releasing 1.4.4.
>>> Billie
>>>> -Joey
>>>>
>>
>
>
>
> --
> Joey Echeverria
> Director, Federal FTS
> Cloudera, Inc.