Hi All, I am interested to know that can we use hadoop for applications where they need more control over the data and it can specify which node will do which part of the processing or the storage. For instance, suppose that I have two data files (datasets, say 1 and 2) and setup a hadoop with two datanodes (A and B) in a distributed cache, can I specify dataset 1 should load on node A and dataset 2 should load on node B? Also I have two tasks (a and b), is it possible to perform task a on node A and task b on node B?
In other words, I want to supply a pattern of operation file (specifying store and operation tasks) to hadoop to perform, will it be possible? If it is, I would appreciate a link discussing this or if a sample code/application doing this. Thanks a lot, -- Ahmad
