On Sep 24, 2008, at 1:50 AM, Trinh Tuan Cuong wrote:
We are developing a project and we are intend to use Hadoop to handle the processing vast amount of data. But to convince our customers about the using of Hadoop in our project, we must show them the advantages ( and maybe ? the disadvantage ) when deploy the project with Hadoop compare to Oracle Database Platform.
The primary advantage of Hadoop is scalability. On an equivalent hardware budget, Hadoop can handle much much larger databases. We had a process that was run once a week on Oracle that is now run once an hour on Hadoop. Additionally, Hadoop scales out much much farther. We can store petabytes of data in a single Hadoop cluster and have jobs that read and generate 100's of terabytes.
The disadvantage of Hadoop is that it is still relatively young and growing fast, so there are growing pains. Hadoop has recently gotten higher level query languages like SQL (Pig, Hive, and Jaql), but still doesn't have any fancy report generators. Hadoop only has very primitive security at the moment, although I expect that to change in the next 6 months.
-- Owen
