I am in a project that has three databases with flat files. Our plan is to normalize these DB in one. We will need to follow the Data warehouse concept (ETL - Extraction, Transform, Load).
We are thinking to use Hadoop at the Transform step, because we need to relate datas from the three databases. Do you think this is a good option? Is there any tutorial/article about it?
We are also thinking to use HIVE to Extract the files, insert it on Hadoop and use HIVE to query these datas. At this step we are going to eliminate blank spaces, duplicate datas, transform a name register to an ID.
What are yours suggestions about this?