There is a parameter (dfs.balance.bandwidthPerSec) that limits the rebalancing bandwidth. The default is rather low.
See http://developer.yahoo.com/hadoop/tutorial/module2.html#rebalancing On Wed, Aug 12, 2009 at 7:36 PM, yang song <hadoop.ini...@gmail.com> wrote: > I'm trying to use the balance tool(bin/hadoop balancer -t xxx). However, > the > data transfer is so slow that it will take a long long time. > Is there a good method to solve it? > -- Ted Dunning, CTO DeepDyve