Added flag to make the master also serve as a datanode and/or tasktracker: use eg --env='MASTER_IS_DATANODE=y' to enable
Added flag to make the master also serve as a datanode and/or tasktracker: use eg --env='MASTER_IS_DATANODE=y' to enable

sammyyu/cloudera-ec2-fork,sammyyu/cloudera-ec2-fork