这个好像不太合理吧，如果我原来3块盘的话，变成6块盘需要由3个拷贝改成六个拷贝？ 那我如果弄完后改回3个拷贝原来的数据还是存6拷贝的呀，那不是浪费空间？
On Thu, Nov 7, 2013 at 9:44 AM, 金杰 <[email protected]> wrote: > yes, you can rebalance them. try hdfs rebalance. Or, you can first > increment the replica by 1, then decrement by 1. > > > Best Regards > 金杰 (Jay Jin) > > > On Thu, Nov 7, 2013 at 8:34 AM, ch huang <[email protected]> wrote: > >> hi,all: >> i have a DN,and i mount the two disk ,one disk for >> /data/dataspace/1, and one disk for /data/dataspace/2, >> the two disk is almost full, so i add a new disk,and modify the config >> file,now >> disk3 mount on /data/dataspace/3 , is it possible even distribution of >> data on the three disks? >> > >
