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Hadoop, mail # general - Heads Up - hadoop-2.0.3 release


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Arun C Murthy 2012-11-16, 06:41
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lohit 2012-11-16, 20:58
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Todd Lipcon 2012-11-16, 21:14
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Todd Lipcon 2012-11-16, 23:34
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Aaron T. Myers 2012-11-16, 23:38
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Stack 2012-11-17, 05:34
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Robert Evans 2012-11-19, 16:22
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Siddharth Seth 2012-11-19, 18:09
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Arun C Murthy 2012-11-19, 19:08
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Tom White 2012-11-20, 12:41
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lohit 2012-12-03, 18:02
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Arun C Murthy 2012-12-04, 14:09
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Aaron T. Myers 2012-12-06, 02:59
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Re: Heads Up - hadoop-2.0.3 release
Todd Lipcon 2012-12-05, 02:03
Hey Arun,

I put up patches for the QJM backport merge yesterday. Aaron said he'd
take a look at reviewing them, so I anticipate that to be finished
"real soon now". Sorry for the delay.

-Todd

On Tue, Dec 4, 2012 at 6:09 AM, Arun C Murthy <[EMAIL PROTECTED]> wrote:
> Lohit,
>
>  There are some outstanding blockers and I'm still awaiting the QJM merge.
>
>  Feel free to watch the blocker list:
>  http://s.apache.org/e1J
>
> Arun
>
> On Dec 3, 2012, at 10:02 AM, lohit wrote:
>
>> Hello Hadoop Release managers,
>> Any update on this?
>>
>> Thanks,
>> Lohit
>>
>> 2012/11/20 Tom White <[EMAIL PROTECTED]>
>>
>>> On Mon, Nov 19, 2012 at 6:09 PM, Siddharth Seth
>>> <[EMAIL PROTECTED]> wrote:
>>>> YARN-142/MAPREDUCE-4067 should ideally be fixed before we commit to API
>>>> backward compatibility. Also, from the recent YARN meetup - there seemed
>>> to
>>>> be a requirement to change the AM-RM protocol for container requests. In
>>>> this case, I believe it's OK to not have all functionality implemented,
>>> as
>>>> long as the protocol itself can represent the requirements.
>>>
>>> I agree. Do you think we can make these changes before removing the
>>> 'alpha' label, i.e. in 2.0.3? If that's not possible for the container
>>> requests change, then we could mark AMRMProtocol (or related classes)
>>> as @Evolving. Another alternative would be to introduce a new
>>> interface.
>>>
>>>> However, as
>>>> Bobby pointed out, given the current adoption by other projects -
>>>> incompatible changes at this point can be problematic and needs to be
>>>> figured out.
>>>
>>> We have a mechanism for this already. If something is marked as
>>> @Evolving it can change incompatibly between minor versions - e.g.
>>> 2.0.x to 2.1.0. If it is @Stable then it can only change on major
>>> versions, e.g. 2.x.y to 3.0.0. Let's make sure we are happy with the
>>> annotations - and willing to support them at the indicated level -
>>> before we remove the 'alpha' label. Of course, we strive not to change
>>> APIs without a very good reason, but if we do we should do so within
>>> the guidelines so that users know what to expect.
>>>
>>> Cheers,
>>> Tom
>>>
>>>>
>>>> Thanks
>>>> - Sid
>>>>
>>>>
>>>> On Mon, Nov 19, 2012 at 8:22 AM, Robert Evans <[EMAIL PROTECTED]>
>>> wrote:
>>>>
>>>>> I am OK with removing the alpha assuming that we think that the APIs are
>>>>> stable enough that we are willing to truly start maintaining backwards
>>>>> compatibility on them within 2.X. From what I have seen I think that
>>> they
>>>>> are fairly stable and I think there is enough adoption by other projects
>>>>> right now that breaking backwards compatibility would be problematic.
>>>>>
>>>>> --Bobby Evans
>>>>>
>>>>> On 11/16/12 11:34 PM, "Stack" <[EMAIL PROTECTED]> wrote:
>>>>>
>>>>>> On Fri, Nov 16, 2012 at 3:38 PM, Aaron T. Myers <[EMAIL PROTECTED]>
>>> wrote:
>>>>>>> Hi Arun,
>>>>>>>
>>>>>>> Given that the 2.0.3 release is intended to reflect the growing
>>>>>>> stability
>>>>>>> of YARN, and the QJM work will be included in 2.0.3 which provides a
>>>>>>> complete HDFS HA solution, I think it's time we consider removing the
>>>>>>> "-alpha" label from the release version. My preference would be to
>>>>>>> remove
>>>>>>> the label entirely, but we could also perhaps call it "-beta" or
>>>>>>> something.
>>>>>>>
>>>>>>> Thoughts?
>>>>>>>
>>>>>>
>>>>>> I think it fine after two minor releases undoing the '-alpha' suffix.
>>>>>>
>>>>>> If folks insist we next go to '-beta', I'd hope we'd travel all
>>>>>> remaining 22 letters of the greek alphabet before we 2.0.x.
>>>>>>
>>>>>> St.Ack
>>>>>
>>>>>
>>>
>>
>>
>>
>> --
>> Have a Nice Day!
>> Lohit
>
> --
> Arun C. Murthy
> Hortonworks Inc.
> http://hortonworks.com/
>
>

--
Todd Lipcon
Software Engineer, Cloudera
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Arun Murthy 2012-12-05, 02:56
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Todd Lipcon 2012-12-05, 21:26
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Suresh Srinivas 2012-11-19, 19:39
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Bikas Saha 2012-11-20, 05:18
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Steve Loughran 2012-11-19, 20:41
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Todd Lipcon 2012-12-18, 19:45
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Arun C Murthy 2012-12-19, 04:15
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Aaron T. Myers 2012-12-19, 04:43
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Arun C Murthy 2012-12-19, 05:00
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Aaron T. Myers 2012-12-19, 05:07
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Heather Bales 2012-12-19, 16:15
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Prabakaran Krishnan 2012-12-19, 11:26
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Steve Loughran 2012-12-19, 14:10
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Arun C Murthy 2013-01-16, 14:52
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Suresh Srinivas 2013-01-16, 18:30
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Arun C Murthy 2013-01-16, 18:38
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Alejandro Abdelnur 2013-01-25, 00:35
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Roman Shaposhnik 2013-01-28, 23:11
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Roman Shaposhnik 2013-01-29, 16:51
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Konstantin Boudnik 2013-01-29, 17:21
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Arun C Murthy 2013-01-29, 17:51
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Roman Shaposhnik 2013-01-31, 05:01
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Konstantin Boudnik 2013-01-31, 05:15
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Bhandarkar, Milind 2012-11-17, 00:05
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Alejandro Abdelnur 2012-11-17, 04:27
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Robert Evans 2012-11-19, 16:27
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Mariappan Asokan 2012-11-19, 17:18
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Marcos Ortiz Valmaseda 2012-11-19, 17:45