Hi everyone ! Hadoop is written in Java, so mapreduce programs are written in Java, too. But Hadoop provides an API to MapReduce that allows you to write your map and reduce functions in languages other than Java (ex. Python), called Hadoop Streaming. I read the guide of Hadoop Streaming in here<http://www.hadoop.apache.org/common/docs/r0.15.2/streaming.html#More+usage+examples> but I haven't seen any paragraph that write about converting language to Java. Can anybody tell me how Hadoop compile the program written in language other than Java.
Thank you ! -- Lac Trung
