start-balancer 直接退出

$ start-balancer.sh

starting balancer, logging to /home/cbas/hadoop/logs/hadoop-cbas-balancer-name.cbas.out

Time Stamp               Iteration#  Bytes Already Moved Bytes Left To Move  Bytes Being Moved

The cluster is balanced. Exiting...

问题原因,数量量太小,没远达做均衡的百分比

http://hadoop.apache.org/common/docs/r0.18.0/api/org/apache/hadoop/dfs/Balancer.html