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MapReduce >> mail # user >> UnsupportedActionException when start balancer in hadoop-2.0.2 alpha


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UnsupportedActionException when start balancer in hadoop-2.0.2 alpha
Hi all,

 

does anyone get "UnsupportedActionException" when start balancer in hadoop-2.0.2 alpha?

any file need to configure for balancer?

starting balancer, logging to /hadoop/hadoop-2.0.2/logs/hadoop-root-balancer-hve-test1.out

org.apache.hadoop.hdfs.server.namenode.UnsupportedActionException: Balancer without BlockPlacementPolicyDefault.  Exiting ...

Thanks!!

 

Regards,

Wenwu,Peng