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Posted to common-dev@hadoop.apache.org by Abhinav M Kulkarni <ab...@gmail.com> on 2012/07/27 21:36:26 UTC

IdentityMapper in 1.0.3

Hi,

What has become of IdentityMapper in 1.0.3? It is not present under 
mapreduce.lib. I understand there was a JIRA improvement to port all the 
classes from mapred.lib to mapreduce.lib.

Thanks.

Re: IdentityMapper in 1.0.3

Posted by Harsh J <ha...@cloudera.com>.

The Mapper class is by itself the identity mapper in the new API.
Check out the javadocs when in doubt:
http://hadoop.apache.org/common/docs/stable/api/org/apache/hadoop/mapreduce/Mapper.html#map(KEYIN,%20VALUEIN,%20org.apache.hadoop.mapreduce.Mapper.Context)

On Sat, Jul 28, 2012 at 1:06 AM, Abhinav M Kulkarni
<ab...@gmail.com> wrote:
> Hi,
>
> What has become of IdentityMapper in 1.0.3? It is not present under
> mapreduce.lib. I understand there was a JIRA improvement to port all the
> classes from mapred.lib to mapreduce.lib.
>
> Thanks.

-- 
Harsh J