hadoop、hbase自动安装的脚本与步骤

要在多台服务器上搭建hadoop、hbase各种配置很繁琐，自动地安装既省时又省力。
参考了这篇博客：[url=http://www.cnblogs.com/tlm1992/p/tlm_hadoop_auto.html]http://www.cnblogs.com/tlm1992/p/tlm_hadoop_auto.html[/url]，并对其进行了一些修改。


前提：安装了ssh
[b]处理流程：[/b]
1.修改配置文件
（1）修改hadoop的配置文件，修改hadoop/hadoop-1.2.1/conf/下的
hdfs-site.xml，mapred-site.xml，core-site.xml 这三个文件,不需要修改hadoop/hadoop-1.2.1/conf/里的slaves和masters文件，脚本会根据hosts的设置自动修改。
（2）修改hbase的配置文件，修改hadoop/hbase-0.94.16/conf下的hbase-site.xml，不需要修改hadoop/hbase-0.94.16/conf/regionservers文件，脚本会根据hosts的设置自动修改。

2.修改hadoop/setup文件夹里的hosts文件来设置所有节点的名字和ip
3.编辑setHadoopOnce.sh的loginName变量（设置登录账号），pw变量(设置节点的密码)。账号、密码各节点必须都是同一个。此外还要修改slaveNum变量。
4.利用终端cd到setup这个文件夹，执行setHadoopOnce.sh脚本。




[b]全部代码：[/b]
1.setHadoopOnce.sh，该文件是文件脚本执行的起点

#!/bin/bash
#修改密码
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:.
export PATH

pw=123456
loginName=hadoop
master=master
slave=slave
slaveNum=1
set timeout 100000
> ../hadoop-1.2.1/conf/masters
> ../hadoop-1.2.1/conf/slaves
#update local file
while read line
do
	echo $line
	ip=`echo $line | cut -d" " -f1`
	name=`echo $line | cut -d" " -f2`
	if [ ! -z $ip ]; then
		echo $name
		if [[ $name == maste* ]]; then
		echo "$name" >> ../hadoop-1.2.1/conf/masters
		elif [[ $name == slave* ]]; then
		echo "$name" >> ../hadoop-1.2.1/conf/slaves
		echo "$name" >> ../hbase-0.94.16/conf/regionservers
		fi
	fi
done < hosts
#upload file to all nodes
while read line
do
	ip=`echo $line | cut -d" " -f1`
	name=`echo $line | cut -d" " -f2`
	if [ ! -z $ip ]; then
		expect copyDataToAll.exp $ip $loginName $pw
		expect setForAll.exp $ip $loginName $pw
	fi
done < hosts

while read line
do
	ip=`echo $line | cut -d" " -f1`
	name=`echo $line | cut -d" " -f2`
	if [ ! -z $ip ]; then
		if [[ $name == maste* ]]; then
			expect setForMaster.exp $ip $loginName $pw
		fi
	fi
done < hosts

while read line
do
	ip=`echo $line | cut -d" " -f1`
	name=`echo $line | cut -d" " -f2`
	if [ ! -z $ip ]; then		 
	     expect setForSSH.exp $ip $loginName $pw
	fi
done < hosts

2.copyDataToAll.exp在setHadoopOnce.sh中的36行被调用，以复制文件到所有节点。

#!/usr/bin/expect
proc usage {} {
    puts stderr "usage: $::argv0 ip usrname password"
    exit 1
}
if {$argc != 3} { usage }
set hostip [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]
set timeout 100000
spawn scp -r ../../hadoop ${username}@${hostip}:~
expect {
	"*assword:" {
		send "$password\n"
		expect eof
	}
	expect eof
}

3.setForAll.exp为所有节点进行进一步的配置工作，在setHadoopOnce.sh中的37行被调用。

#!/usr/bin/expect
proc usage {} {
    puts stderr "usage: $::argv0 ip usrname password"
    exit 1
}
proc connect {pwd} {
	expect {
		"*(yes/no)?" {
			send "yes\n"
			expect "*assword:" {
				send "$pwd\n"
				expect {
					"*Last login:*" {
						return 0
					}
				}
			}
		}
		"*assword:" {
			send "$pwd\n"
			expect {
				"*Last login:*" {
					return 0
				}
			}
		}
		"*Last login:*" {
			return 0
		}
	}
	return 1
}
if {$argc != 3} { usage }
set hostip [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]
set timeout 100000

spawn ssh ${username}@${hostip}
if {[connect $password]} {
	exit 1
}
#set host
send "sudo bash ~/hadoop/setup/addHosts.sh\r"
expect "*assword*"
send "$password\r"
expect "*ddhostsucces*"
sleep 1

send "ssh-agent bash ~/hadoop/setup/sshGen.sh\n"
expect {
	"*(yes/no)?" {
		send "yes\n"
		exp_continue
	}
	"*verwrite (y/n)?" {
		send "n\n"
		exp_continue
	} 
	"*nter file in which to save the key*" {
		send "\n"
		exp_continue
	}
	"*nter passphrase*" {
		send "\n"
		exp_continue
	}
	"*nter same passphrase again*" {
		send "\n"
		exp_continue
	}
	"*our public key has been saved*" {
		exp_continue
	}
	"*etsshGenSucces*" {
		sleep 1
	}
}

send "bash ~/hadoop/setup/setEnvironment.sh\n"
expect "*etEnvironmentSucces*"
sleep 1

send "exit\n"

expect eof

3.1 addHosts.sh在setForAll.exp中被调用，用于设置节点的hosts文件。

#!/bin/bash
hadoopRoot=~/hadoop

cat $hadoopRoot/setup/hosts >> /etc/hosts
echo "addhostsuccess"

3.2 sshGen.sh在setForAll.sh中被调用，用于生成sshkey.

#!/bin/bash
sshPath=~/.ssh
setupPath=~/hadoop/setup
rm "$sshPath"/authorized_keys
sleep 1
ssh-keygen -t rsa
cat "$sshPath"/id_rsa.pub >> "$sshPath"/authorized_keys
ssh-add
echo "setsshGenSuccess"

3.3 setEnviroment.sh 在setForAll.sh中被调用，用于设置环境变量

#!/bin/bash
hadoopRoot=~/hadoop
hadoopPath=$hadoopRoot/hadoop-1.2.1
hbasePath=$hadoopRoot/hbase-0.94.16
setupPath=$hadoopRoot/setup
JAVA_VERSION=`java -version 2>&1 | awk '/java version/ {print $3}'|sed 's/"//g'|awk '{if ($1>=1.6) print "ok"}'`

if [ "$JAVA_VERSION"x != "okx" ]; then
	cat "$setupPath"/jdkenv >> ~/.bashrc       
	sleep 1
	source ~/.bashrc
	sleep 1
fi


 echo "export JAVA_HOME=~/hadoop/jdk1.7.0" >> "$hadoopPath"/conf/hadoop-env.sh
 echo "export JAVA_HOME=~/hadoop/jdk1.7.0" >> "$hbasePath"/conf/hbase-env.sh


Hadoop_Version=`hadoop version|awk '/Hadoop/ {print $2}'|awk '{if ($1>=1.0) print "ok"}'`

if [ "$Hadoop_Version"x != "okx" ]; then
	cat "$setupPath"/hadoopenv >> ~/.bashrc
	sleep 1
	source ~/.bashrc
	sleep 1
fi

echo "setEnvironmentSuccess"

4 setForMaster.exp 远程sshsetForMaster.sh，配置无密码登录

#!/usr/bin/expect
proc usage {} {
    puts stderr "usage: $::argv0 ip usrname password"
    exit 1
}
proc connect {pwd} {
	expect {
		"*(yes/no)?" {
			send "yes\n"
			expect "*assword:" {
				send "$pwd\n"
				expect {
					"*Last login:*" {
						return 0
					}
				}
			}
		}
		"*assword:" {
			send "$pwd\n"
			expect {
				"*Last login:*" {
					return 0
				}
			}
		}
		"*Last login:*" {
			return 0
		}
	}
	return 1
}

if {$argc != 3} { usage }
set hostip [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]
set timeout 100000
spawn ssh ${username}@${hostip}
if {[connect $password]} {
	exit 1
}

send "bash  ~/hadoop/setup/setForMaster.sh\n"
expect {
	"*etForMasterSucces*" {
		sleep 1

	}
	"*assword*" {
		send "$password\n"
		exp_continue
	}
	"*(yes/no)?" {
		send "yes\n"
		exp_continue
	}
}

4.1 setForMaster.sh

#!/bin/bash

while read line
do
	ip=`echo $line | cut -d" " -f1`
	name=`echo $line | cut -d" " -f2`
	if [ ! -z $ip ]; then
		if [[ $name == slave* ]]; then
			scp $ip:~/.ssh/authorized_keys ~/tmpkey
			cat ~/tmpkey >> ~/.ssh/authorized_keys
		fi
	fi
done < ~/hadoop/setup/hosts


sleep 1

rm -f ~/tmpkey
while read line
do
	ip=`echo $line | cut -d" " -f1`
	name=`echo $line | cut -d" " -f2`
	if [ ! -z $ip ]; then
		if [[ $name == slave* ]]; then
			scp ~/.ssh/authorized_keys $ip:~/.ssh/authorized_keys  

		fi 
	fi
done < ~/hadoop/setup/hosts

echo "setForMasterSuccess"

5.setForSSH.exp配置了SSH，可能由于.ssh 目录和~/.ssh/authorized_keys权限不对，还是需要输入密码。因此修改权限。

#!/usr/bin/expect
proc usage {} {
    puts stderr "usage: $::argv0 ip usrname password"
    exit 1
}
proc connect {pwd} {
	expect {
		"*(yes/no)?" {
			send "yes\n"
			expect "*assword:" {
				send "$pwd\n"
				expect {
					"*Last login:*" {
						return 0
					}
				}
			}
		}
		"*assword:" {
			send "$pwd\n"
			expect {
				"*Last login:*" {
					return 0
				}
			}
		}
		"*Last login:*" {
			return 0
		}
	}
	return 1
}
if {$argc != 3} { usage }
set hostip [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]
set timeout 100000

spawn ssh ${username}@${hostip}
if {[connect $password]} {
	exit 1
}
sleep 1

send "bash ~/hadoop/setup/setForSSH.sh\n"
expect {
  "*ForSSHSuccess*" { 
   sleep 1

}
}

send "exit\n"
expect eof

5.1setForSSH.sh

#!/bin/bash 
chmod 700  ~/.ssh
chmod 644 ~/.ssh/authorized_keys

sleep 1

echo "setForSSHSuccess"

文件目录：
本想上传源代码，发现文件不能超过10M，无法上传。


附件中是文件的目录，上面的linux脚本在setup目录下，其他的hbase,hadoop,jdk安装文件请自己下载吧。