you cannot use RecordReader in Reducer. what's the mean of you want get the record position? I cannot understand, can you give a simple example?
On Wed, Mar 13, 2013 at 9:56 AM, Roth Effy <[email protected]> wrote: > sorry，I still can't understand how to use recordreader in the > reduce(),because the input is a RawKeyValueIterator in the class > reducecontext.so,I'm confused. > anyway,thank you. > > > 2013/3/12 samir das mohapatra <[email protected]> > >> Through the RecordReader and FileStatus you can get it. >> >> >> On Tue, Mar 12, 2013 at 4:08 PM, Roth Effy <[email protected]> wrote: >> >>> Hi,everyone, >>> I want to join the k-v pairs in Reduce(),but how to get the record >>> position? >>> Now,what I thought is to save the context status,but class Context >>> doesn't implement a clone construct method. >>> >>> Any help will be appreciated. >>> Thank you very much. >>> >> >> >
