I would recommend a serialzation framework such as json,protobufs,avro or thrift.
I would disrecommend java serialization and hadoop writables. They all have strengths and weaknesses. Good luck! On Oct 19, 2009 6:18 PM, "yz5od2" <woods5242-outdo...@yahoo.com> wrote: Hi, My Hadoop job has no reduce tasks. The Mapper creates some very simple Java POJOs which I would like to serialize as the output of the Mapper. These POJO's are to be stored in an Hbase table in the output phase. What would be the best way to go about this?