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WangRamon 2012-03-12, 01:27
Hi all I've been with Hadoop-0.20-append for a few time and I plan to upgrade to 1.0.0 release, but i find there are many people taking about the NEW API, so I'm lost, can anyone please tell me what is the new API? Is the OLD one available in the 1.0.0 release? Thanks CheersRamon
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Re: What is the NEW api?
Suresh Srinivas 2012-03-12, 01:35
> there are many people talking about the NEW API This might be related to releases 0.21 or later, where append and related functionality is re-implemented.
1.0 comes from 0.20.205 and has same API as 0.20-append.
Sent from phone
On Mar 11, 2012, at 6:27 PM, WangRamon <[EMAIL PROTECTED]> wrote:
> > > > > Hi all I've been with Hadoop-0.20-append for a few time and I plan to upgrade to 1.0.0 release, but i find there are many people taking about the NEW API, so I'm lost, can anyone please tell me what is the new API? Is the OLD one available in the 1.0.0 release? Thanks CheersRamon
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Re: What is the NEW api?
Mike Spreitzer 2012-03-12, 02:50
As far as I know, the new API is the stuff in the Java package named org.apache.hadoop.mapreduce, while the old API is in org.apache.hadoop.mapred.
And, just to keep you on your toes, I am told the new API is deprecated, it is the old API that is currently favored.
Regards, Mike
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Re: What is the NEW api?
Harsh J 2012-03-12, 03:57
New API isn't 'deprecated', but just marked evolving and is unstable (things may change between releases).
Using the old, stable API is a good idea for 0.20.x/1.x stable releases as they are more complete in it. However, we've added some more backports to new API in 1.0.1 to help those who use it.
The project continues to support both APIs fully through 0.23 (and maybe beyond).
On Mon, Mar 12, 2012 at 8:20 AM, Mike Spreitzer <[EMAIL PROTECTED]> wrote: > As far as I know, the new API is the stuff in the Java package named > org.apache.hadoop.mapreduce, while the old API is in > org.apache.hadoop.mapred. > > And, just to keep you on your toes, I am told the new API is deprecated, > it is the old API that is currently favored. > > Regards, > Mike
-- Harsh J
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