Streaming gives an simple interface like Pipe operator in Linux shell, so that it can be used for other application.
And, Gopal. See the usage at http://wiki.apache.org/hadoop/HadoopStreaming -mapper <cmd|JavaClassName> The streaming command to run -reducer <cmd|JavaClassName> The streaming command to run I guess you just need to make your map/reduce class. -Edward J. Yoon On Wed, Aug 6, 2008 at 11:35 AM, Taeho Kang <[EMAIL PROTECTED]> wrote: > It sounds strange to me that you want to use MapReduce scripts in Java just > to run it on Hadoop Streaming. > > Why don't you write MapReduce in Java (e.g. WordCount example) and run it it > on the default MapReduce framework? > That way you don't even have to rely on Hadoop streaming. > On Wed, Aug 6, 2008 at 5:58 AM, Gopal Gandhi <[EMAIL PROTECTED]>wrote: > >> I am using Hadoop streaming and I want to write the map/reduce scripts in >> JAVA, rather than perl, etc. Would anybody give me a sample? Thanks >> >> >> >> > -- Best regards, Edward J. Yoon [EMAIL PROTECTED] http://blog.udanax.org
