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Hive >> mail # dev >> How long will we support Hadoop 0.20.2?


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Re: How long will we support Hadoop 0.20.2?
If anyone wants to clean some tech dept: There are still places in the code
that say something like :

"//hack for 17.X removed when we only support hadoop 0.20

:)
On Wed, Sep 18, 2013 at 4:54 PM, Edward Capriolo <[EMAIL PROTECTED]>wrote:

> I am not fine with dropping it. I still run it in several places.
>
> Believe it or now many people still run 0.20.2. I believe (correct me If I
> am wrong) facebook is still running a heavily patch 0.20.2.
>
> Mainly most of the things hive uses were designed around the 0.20.2 mapred
> api. In fact hive's components are generally layered on top of the mapred.*
> and nothing really uses mapreduce.
>
> I think hive should go on supporting 0.20.2 indefinitely. 0.20.2 is solid.
> If you look at the shim layer, it turns out that supporting 0.20.2 is
> really not much more work then supporting any other version.
>
> Since the burden is not that high I do not even see why we would need to
> drop it, there is just as much or more shim-ing to try to deal with
> differences between 2.205, 0.23, 0.2, 2.0.
>
> I could see dropping 0.20.2 if it was a huge burden but I do not see it
> that way, it work's it is reliable, and it is a known quantity.
>
>
>
>
> On Wed, Sep 18, 2013 at 4:22 PM, Ashutosh Chauhan <[EMAIL PROTECTED]>wrote:
>
>> I am fine with dropping support for 0.20 line. 4 years is a long time. We
>> cannot keep accumulating tech debt forever.
>>
>> Ashutosh
>>
>>
>> On Wed, Sep 18, 2013 at 1:04 PM, Brock Noland <[EMAIL PROTECTED]> wrote:
>>
>> > Hi,
>> >
>> > At present we require compatibility with Hadoop 0.20.2. See:
>> > https://issues.apache.org/jira/browse/HIVE-5313
>> >
>> > Considering 0.20.2 was released 4 years ago, how long are we going to
>> > continue to support it?
>> >
>> > Brock
>> >
>>
>
>