#!/bin/bash
/opt/hadoop/bin/hadoop-daemon.sh start namenode
/opt/hadoop/bin/hadoop-daemon.sh start secondarynamenode
/opt/hadoop/bin/hadoop-daemon.sh start datanode
/opt/hadoop/bin/hadoop-daemon.sh start jobtracker
/opt/hadoop/bin/hadoop-daemon.sh start tasktracker
/opt/hadoop/bin/hadoop dfsadmin -safemode leave
echo "=========================================="
echo "run 'stop-hadoop' to stop hadoop daemons. "
echo "=========================================="
