You'd basically be doing a copy of the getInputSplits and getRecordReader methods, except they'd be returning the mapred version of those classes.
On Mon, Jul 16, 2012 at 3:13 PM, Juan Moreno <[email protected]>wrote: > How hard would it be to implement own version using the mapred API ? > > Would I have to do something as complex as InputFormatBase ? (It's a > mammoth class) > On Jul 16, 2012 5:53 PM, "William Slacum" <[email protected]> > wrote: > >> mapred was deprecated as of 0.20.0 ( >> http://hadoop.apache.org/common/docs/r0.20.0/api/org/apache/hadoop/mapred/InputFormat.html) >> :) >> >> On Mon, Jul 16, 2012 at 2:49 PM, Juan Moreno < >> [email protected]> wrote: >> >>> The hadoop API is very confusing in that regard. Currently Accumulo runs >>> atop 0.20 and in that version , mapred is the new one and mapreduce is the >>> old one. InputFormat currently makes use of mapreduce. >>> On Jul 16, 2012 5:40 PM, "Billie J Rinaldi" <[email protected]> >>> wrote: >>> >>>> On Monday, July 16, 2012 5:27:09 PM, "Ed Kohlwey" <[email protected]> >>>> wrote: >>>> > I would suggest spending the effort porting chainmapper to the new API >>>> > (mapreduce) since the old API will eventually be removed. >>>> >>>> I assumed that would be true since the old API was deprecated, and that >>>> is why we no longer support it. However, the old API has been undeprecated >>>> since 0.20.205.0 and 1.0.0, which seems to indicate it's not going away. >>>> Does anyone know what the plan for it is? >>>> >>>> Billie >>>> >>>> >>>> > Sent from my smartphone. Please excuse any typos or shorthand. >>>> > On Jul 16, 2012 5:22 PM, "Billie J Rinaldi" < >>>> > [email protected] > wrote: >>>> > >>>> > >>>> > On Monday, July 16, 2012 5:02:52 PM, "Juan Moreno" < >>>> > [email protected] > wrote: >>>> > > Hi there, I have a use case where I need to use a Chain Mapper >>>> > > and/or >>>> > > Reducer. The problem is that >>>> > > the AccumuloInputFormat extends hadoop.mapreduce.InputFormat rather >>>> > > than implementing hadoop.mapred.InputFormat >>>> > > >>>> > > >>>> > > Trying to make use of org.apache.hadoop.mapred.lib.ChainMapper >>>> > > does not work because it requires the use of the mapred package. Is >>>> > > there a version of the AccumuloInputFormat which uses >>>> > > the hadoop.mapred package instead? Can InputFormatBase be rewritten >>>> > > with the newer API? >>>> > > >>>> > > >>>> > > Thanks! >>>> > > Juan >>>> > >>>> > I opened ACCUMULO-695 to add support for the old mapred API. >>>> > >>>> > Billie >>>> >>> >>
