I'm a little confused about the implemention of DBInputFormat. In my view , The method getSplits of DBInputFormat splits the resultset into serval splits logically. so The DbRecordReader should process the DbSplit. But I find in the real implement of DbRecordReader It process the resultset instead of the DbSplit. I don't understand why. Thanks for any help.
2008/10/27 ZhiHong Fu <[EMAIL PROTECTED]> > > > 2008/10/27 Owen O'Malley <[EMAIL PROTECTED]> > >> If your application that you are drawing from is doing some sort of web >> crawl that connects to lots of random servers, you may want to use >> MultiThreadedMapRunner and do the remote connections in the map. If you are >> just connecting to a small set of servers for each map, you should put it in >> the InputFormat. >> >> Using MultiThreadedMapRunner means that each map can have multiple threads >> transferring data from the external sources. >> >> -- Owen >> > >
