Mike, The mapred.* API has been undeprecated and continues to be the stable API. In 1.0.0, the new API is/was unfinished and lacks a lot of ports from the mapred.lib.* components. This is being addressed by https://issues.apache.org/jira/browse/MAPREDUCE-3607 if you are interested in backporting as well.
For Hadoop-1, which is but a rename of the 0.20.x branch and not higher than 0.21/etc., the recommendation is still to use the older, stable API. This will continue to be supported in 0.23 and maybe beyond so there should be no worry in switching to it. On Sun, Jan 15, 2012 at 1:18 PM, Mike Spreitzer <mspre...@us.ibm.com> wrote: > Having looked at a few releases of Hadoop, I am surprised to find that in > most of them the CompositeInputFormat class is in mapred but not mapreduce. > While there is a CompositeInputFormat under mapreduce in release 0.21.0, > there is no CompositeInputFormat under mapreduce in release 1.0.0. Why is > that? Is there something better under mapreduce that I should be using > instead? > > Thanks, > Mike -- Harsh J Customer Ops. Engineer, Cloudera
