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

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Re: Heads Up - hadoop-2.0.3 release
Any news on how this is progressing? Some folks in this thread below
inquired about getting this release out around the New Year timeframe,
but it looks like YARN-117 subtasks have gone pretty quiet. We all
know how long lifecycle changes can take to get pushed through ;-)


On Mon, Nov 19, 2012 at 12:41 PM, Steve Loughran
> I want to make some changes to the lifecycle of a yarn service (in a
> backwards compatible way).
> https://issues.apache.org/jira/browse/YARN-117
>    1. formal state machine model with stop state idempotent and entry-able
>    from any state
>    2. waiting/blocked state a service can enter when waiting for something
>    else
>    3. an alternate base class that does the state model checks before
>    executing any state change functions -currently its done at
>    end-of-operation in the super() calls.
>    4. gradual move of services to the stricter base class.
> With a new base class nothing will break (as the move can be done
> case-by-case, leaving the heavily subclassed ones alone); the state model
> extensions & formalisation would be visible but not used.
> I don't want to hold anything up, because I need more testing of things
> before this is ready for review. I just want to get the fixes in before it
> ships
> On 19 November 2012 16:22, 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

Todd Lipcon
Software Engineer, Cloudera