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