Hi Ondrej You can use NLineInputFormat with n set to 10.
------Original Message------ From: Ondřej Klimpera To: common-user@hadoop.apache.org ReplyTo: common-user@hadoop.apache.org Subject: Setting number of mappers according to number of TextInput lines Sent: Jun 16, 2012 14:31 Hello, I have very small input size (kB), but processing to produce some output takes several minutes. Is there a way how to say, file has 100 lines, i need 10 mappers, where each mapper node has to process 10 lines of input file? Thanks for advice. Ondrej Klimpera Regards Bejoy KS Sent from handheld, please excuse typos.
