Thank you Amogh. On Thu, Jan 28, 2010 at 3:44 PM, Amogh Vasekar <am...@yahoo-inc.com> wrote:
> Hi, > For global line numbers, you would need to know the ordering within each > split generated from the input file. The standard input formats provide > offsets in splits, so if the records are of equal length you can compute > some kind of numbering. > I remember someone had implemented sequential numbering using the partition > id for each map task (mapred.task.partition) and posted this on his blog. I > don't have it handy with me right now, but will send you off the list if I > find it. > > Amogh > > > On 1/28/10 3:29 PM, "Udaya Lakshmi" <udaya...@gmail.com> wrote: > > Hi all.. > I have searched the documentation but could not find a input file > format which will give line number as the key and line as the value. > Did I miss something? Can someone give me a clue of how to implement > one such input file format. > > Thanks, > Udaya. > >
