????Hadoop????????Doug Cutting?? ?????????Java??????????Apache Lucene???????Hadoop?????????????????????Apache Nutch????Nutch?????????Lucene??????????Lucene???????????????Hadoop????Java?????????????????Hadoop????Java??д???
????Hadoop????Java??д?????Hadoop???????Java?????д????????????????У??????????????Java????????????????????????C/C++?????????????дMapReduce?????????????????Hadoop?????Щ?????
????????????C/C++??дMpaReduce????????????????Hadoop Streaming????Hadoop Pipes??
????????????Python??дMapReduce????????????Hadoop Streaming????Pydoop??
????????????????????????shell??php??ruby????????Hadoop Streaming??