How can I creat 10 files on each datanode? I think I can only create files on filesystem, Is there any method to assign a file to a datanode?
2009/10/19 Jason Venner <[email protected]> > If you set your replication count to one and on each datanode, create 10 > files, you will achieve the pattern you are trying for. > > By default when a file is created on a machine hosting a datanode, that > datanode will receive 1 replica of the file, and will be responsible for > sending the file data to the next replica if any. > > > On Thu, Oct 15, 2009 at 1:39 PM, Huang Qian <[email protected]> wrote: > > > Hi everyone. I am working on a project with hadoop and now I come across > > some problem. How can I deploy 100 files, with each file have one block > by > > setting the blocksize and controling the file size, on to 10 datanode, > and > > make sure each datanode has 10 blocks. I know the file system can deploy > > the > > blocks automaticly, but I want to make sure for the assigns files, the > > files > > will be deployed well-proportioned. How can I make it by the hadoop tool > or > > api? > > > > Huang Qian（黄骞） > > Institute of Remote Sensing and GIS,Peking University > > Phone: (86-10) 5276-3109 > > Mobile: (86) 1590-126-8883 > > Address:Rm.554,Building 1,ChangChunXinYuan,Peking > > Univ.,Beijing(100871),CHINA > > > > > > -- > Pro Hadoop, a book to guide you from beginner to hadoop mastery, > http://www.amazon.com/dp/1430219424?tag=jewlerymall > www.prohadoopbook.com a community for Hadoop Professionals >
