#!/bin/bash## Start HDFS daemons# Format the namenode directory (DO THIS ONLY ONCE, THE FIRST TIME)#$HADOOP_PREFIX/bin/hdfs namenode -format# Start the namenode daemon$HADOOP_PREFIX/sbin/hadoop-daemon.sh start namenode# Start the datanode daemon$HADOOP_PREFIX/sbin/hadoop-daemon.sh start datanode## Start YARN daemons# Start the resourcemanager daemon$HADOOP_PREFIX/sbin/yarn-daemon.sh start resourcemanager# Start the nodemanager daemon$HADOOP_PREFIX/sbin/yarn-daemon.sh start nodemanager