hello. I'm a new user to hadoop. and Now I hava a problem in understanding Hdfs. In such a scene. I have several databases and want to index them. So when I map indexing database, I have to control which database index was stored in which datanode. So when database updated, The index can be updated correspondely. So how can i get to do this? thanks
- help! how can i control special data to specific datano... ZhiHong Fu
