Did you specified how many map tasks?
On Fri, Oct 17, 2014 at 4:58 PM, ch huang <justlo...@gmail.com> wrote: > hi,maillist: > i now use distcp to migrate data from CDH4.4 to CDH5.1 , i > find when copy small file,it very good, but when transfer big data ,it very > slow ,any good method recommand? thanks >
