Hello Jennie, I can to do clustering, to use (map-reduce, handoop) as monetdb for large amounts of information? any have any documentation for this? What amount of information are you talking about? I have two applications. In 1 i have over 100.000.000 millions of records. And i have other application as more of 400.000.000 millions of records and i need migrate this of oracle. Thanks, Edgar M