Hi, I am using Hadoop streaming to distribute some biological data strings. My mapper is some executable binary program to determine the structure of a certain input. I am also using some reducer script to glue the output strings from the mapper so that I have a one long string. But I have a problem that the order of the output string is not same as the input from the mapper. Is there a way that I can use Hadoop so that the output is in the same order as the input. Assume we have an output from the mapperMAP1<RNA-1><STRUCTURE-1>MAP2<RNA-2><STRUCTURE-2>MAP3<RNA-3><STRUCTURE-3>and what I am looking is to reduce in the following manner: <RNA-1><RNA-2><RNA-3>\t<STRUCTURE-1><STRUCTURE-2><STRUCTURE-3>\n your input highly appreciated. Thanks in advance.Regards,
Daniel T. Yehdego Computational Science Program University of Texas at El Paso, UTEP [email protected]
