3.Java和hadoop的安装
先创建目录
[hadoop@node1 opt]$ cd /opt
[hadoop@node1 opt]$ sudo mkdir /opt/softwares
[hadoop@node1 opt]$ sudo mkdir /opt/modules
[hadoop@node1 opt]$ sudo mkdir /opt/tools
[hadoop@node1 opt]$ sudo mkdir /opt/datas
[hadoop@node1 opt]$ sudo rm -rh rh
rm: invalid option -- 'h'
Try 'rm --help' for more information.
[hadoop@node1 opt]$ sudo rm -rf rh
[hadoop@node1 opt]$ ll
total
drwxr-xr-x. root root May : datas
drwxr-xr-x. root root May : modules
drwxr-xr-x. root root May : softwares
drwxr-xr-x. root root May : tool
给目录赋予权限
[hadoop@node1 opt]$ sudo chown -R hadoop:hadoop /opt/*
[hadoop@node1 opt]$ ll
total 0
drwxr-xr-x. 2 hadoop hadoop 6 May 9 17:19 datas
drwxr-xr-x. 2 hadoop hadoop 6 May 9 17:18 modules
drwxr-xr-x. 2 hadoop hadoop 6 May 9 17:18 softwares
drwxr-xr-x. 2 hadoop hadoop 6 May 9 17:19 tools
其他3台机器也是一样的操作！！
上传java安装包和hadoop安装包
解压jdk
配置jdk环境变量
#java
export JAVA_HOME=/opt/modules/jdk1..0_65
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
使环境变量生效
接下来配置给每台机器配置免密码登录
添加以下语句。
另外三台机器也这样操作！！！！
同时配置虚拟机与本地电脑的地址映射关系
添加以下语句
每台机器的各自本身的无密码访问
node1
[hadoop@node1 ~]$ cd
[hadoop@node1 ~]$ cd .ssh
-bash: cd: .ssh: No such file or directory
[hadoop@node1 ~]$ mkdir .ssh
[hadoop@node1 ~]$ cd .ssh
[hadoop@node1 .ssh]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hadoop/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/hadoop/.ssh/id_rsa.
Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:Q2csL/LvcBf6qs29dZyjW0ZVKnqkqx+4DK4QHRJUEHo hadoop@node1
The key's randomart image is:
+---[RSA ]----+
| .=+. .|
| . . . ..|
|. E . o + o . .|
| . o . . = + . .|
| . . . S + o . |
| . o + + ....|
| . . + = . .=o|
| . . o O = .+..|
| ... =+B.++. |
+----[SHA256]-----+
[hadoop@node1 .ssh]$
[hadoop@node1 .ssh]$ ls
id_rsa id_rsa.pub
[hadoop@node1 .ssh]$ cat id_rsa.pub >> authorized_keys
[hadoop@node1 .ssh]$ ls
authorized_keys id_rsa id_rsa.pub
[hadoop@node1 .ssh]$ cd ..
[hadoop@node1 ~]$ chmod .ssh
[hadoop@node1 ~]$ chmod .ssh/*
[hadoop@node1 ~]$ ssh node1
The authenticity of host 'node1 (fe80::eb1a:bdfe:4746:d86e%ens33)' can't be established.
ECDSA key fingerprint is SHA256:MgPYAE+6wpwD4f0o7rxojIbSEO1/6CWDDwebvR+m/NA.
ECDSA key fingerprint is MD5:9d:2a:c6:e4:c4:a1:73:42:92:47:a5:f1:9a:eb:2c:58.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node1,fe80::eb1a:bdfe:4746:d86e%ens33' (ECDSA) to the list of known hosts.
Last login: Fri May 10 17:40:50 2019 from 192.168.86.1
[hadoop@node1 ~]$ sudo yum -y install openssh-clients
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Loading mirror speeds from cached hostfile
* base: mirrors.cn99.com
* extras: mirrors.cn99.com
* updates: mirrors.njupt.edu.cn
base | 3.6 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
updates/7/x86_64/primary_db | 4.2 MB 00:00:05
Package openssh-clients-7.4p1-16.el7.x86_64 already installed and latest version
Nothing to do
[hadoop@node1 ~]$ ssh node1
Last login: Fri May 10 17:51:08 2019 from fe80::eb1a:bdfe:4746:d86e%ens33
[hadoop@node1 ~]$ exit
logout
Connection to node1 closed.
[hadoop@node1 ~]$
node2
[hadoop@node2 ~]$ mkdir .ssh
[hadoop@node2 ~]$ cd .ssh
[hadoop@node2 .ssh]$ ls
[hadoop@node2 .ssh]$ cd ..
[hadoop@node2 ~]$ cd .ssh
[hadoop@node2 .ssh]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hadoop/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/hadoop/.ssh/id_rsa.
Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:ldG4RCbi5P1vf6McCO6XHm0OMW4ncKdQBrJn53uzyFw hadoop@node2
The key's randomart image is:
+---[RSA ]----+
| o..o+o |
| + ooo+o. |
| o..+o= |
| oo* |
| S+.= . |
| . *.O |
| . X+E |
| . ++%.+..|
| .o= =o..|
+----[SHA256]-----+
[hadoop@node2 .ssh]$ ls
id_rsa id_rsa.pub
[hadoop@node2 .ssh]$
[hadoop@node2 .ssh]$ cat id_rsa.pub >> authorized_keys
[hadoop@node2 .ssh]$ ls
authorized_keys id_rsa id_rsa.pub
[hadoop@node2 .ssh]$ cd ..
[hadoop@node2 ~]$ chmod .ssh
[hadoop@node2 ~]$ chmod .ssh/*
[hadoop@node2 ~]$ sudo yum -y install openssh-clients
Loaded plugins: fastestmirror, langpacks
base | 3.6 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package openssh-clients.x86_64 0:7.4p1-11.el7 will be updated
---> Package openssh-clients.x86_64 0:7.4p1-16.el7 will be an update
--> Processing Dependency: openssh = 7.4p1-16.el7 for package: openssh-clients-7.4p1-16.el7.x86_64
--> Running transaction check
---> Package openssh.x86_64 0:7.4p1-11.el7 will be updated
--> Processing Dependency: openssh = 7.4p1-11.el7 for package: openssh-server-7.4p1-11.el7.x86_64
---> Package openssh.x86_64 0:7.4p1-16.el7 will be an update
--> Running transaction check
---> Package openssh-server.x86_64 0:7.4p1-11.el7 will be updated
---> Package openssh-server.x86_64 0:7.4p1-16.el7 will be an update
--> Finished Dependency Resolution Dependencies Resolved =============================================================================================================================================
Package Arch Version Repository Size
=============================================================================================================================================
Updating:
openssh-clients x86_64 7.4p1-16.el7 base 655 k
Updating for dependencies:
openssh x86_64 7.4p1-16.el7 base 510 k
openssh-server x86_64 7.4p1-16.el7 base 458 k Transaction Summary
=============================================================================================================================================
Upgrade 1 Package (+2 Dependent packages) Total download size: 1.6 M
Downloading packages:
No Presto metadata available for base
(1/3): openssh-clients-7.4p1-16.el7.x86_64.rpm | 655 kB 00:00:00
(2/3): openssh-server-7.4p1-16.el7.x86_64.rpm | 458 kB 00:00:00
(3/3): openssh-7.4p1-16.el7.x86_64.rpm | 510 kB 00:00:00
---------------------------------------------------------------------------------------------------------------------------------------------
Total 2.2 MB/s | 1.6 MB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : openssh-7.4p1-16.el7.x86_64 1/6
Updating : openssh-clients-7.4p1-16.el7.x86_64 2/6
Updating : openssh-server-7.4p1-16.el7.x86_64 3/6
Cleanup : openssh-server-7.4p1-11.el7.x86_64 4/6
Cleanup : openssh-clients-7.4p1-11.el7.x86_64 5/6
Cleanup : openssh-7.4p1-11.el7.x86_64 6/6
Verifying : openssh-7.4p1-16.el7.x86_64 1/6
Verifying : openssh-clients-7.4p1-16.el7.x86_64 2/6
Verifying : openssh-server-7.4p1-16.el7.x86_64 3/6
Verifying : openssh-clients-7.4p1-11.el7.x86_64 4/6
Verifying : openssh-7.4p1-11.el7.x86_64 5/6
Verifying : openssh-server-7.4p1-11.el7.x86_64 6/6 Updated:
openssh-clients.x86_64 0:7.4p1-16.el7 Dependency Updated:
openssh.x86_64 0:7.4p1-16.el7 openssh-server.x86_64 0:7.4p1-16.el7 Complete!
[hadoop@node2 ~]$ ssh node2
The authenticity of host 'node2 (fe80::2b74:214b:f03a:9f89%ens33)' can't be established.
ECDSA key fingerprint is SHA256:6mgGUMwozj0Cl6LzCNi250qZGSruWJA7bAktWIEAkDo.
ECDSA key fingerprint is MD5:cc:17:8e:2c:8f:9d:6f:1d:1a:da:ef:20:05:da:1f:2a.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node2,fe80::2b74:214b:f03a:9f89%ens33' (ECDSA) to the list of known hosts.
Last login: Fri May 10 17:40:59 2019 from 192.168.86.1
[hadoop@node2 ~]$ exit
logout
Connection to node2 closed.
[hadoop@node2 ~]$
node3
[hadoop@node3 ~]$ mkdir .ssh
[hadoop@node3 ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hadoop/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/hadoop/.ssh/id_rsa.
Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:0aMi9W78aCoXPqtkQ6Jv6HnKec9BqyKjdbaY6tcFEmQ hadoop@node3
The key's randomart image is:
+---[RSA ]----+
| .E |
| .. . |
| . . . o |
| . o . o . |
| . +.o S |
| . o..o= |
|... B+..+ |
|=++@++=..o |
|B@X.+*o=. . |
+----[SHA256]-----+
[hadoop@node3 ~]$
[hadoop@node3 .ssh]$ cat id_rsa.pub >> authorized_keys
[hadoop@node3 .ssh]$ ls
authorized_keys id_rsa id_rsa.pub
[hadoop@node3 .ssh]$ cd ..
[hadoop@node3 ~]$ chmod .ssh
[hadoop@node3 ~]$ chmod .ssh/*
[hadoop@node3 ~]$ sudo yum -y install openssh-clients
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
base | 3.6 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
updates/7/x86_64/primary_db | 4.2 MB 00:00:01
Loading mirror speeds from cached hostfile
* base: centos.ustc.edu.cn
* extras: mirrors.nju.edu.cn
* updates: centos.ustc.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package openssh-clients.x86_64 0:7.4p1-11.el7 will be updated
---> Package openssh-clients.x86_64 0:7.4p1-16.el7 will be an update
--> Processing Dependency: openssh = 7.4p1-16.el7 for package: openssh-clients-7.4p1-16.el7.x86_64
--> Running transaction check
---> Package openssh.x86_64 0:7.4p1-11.el7 will be updated
--> Processing Dependency: openssh = 7.4p1-11.el7 for package: openssh-server-7.4p1-11.el7.x86_64
---> Package openssh.x86_64 0:7.4p1-16.el7 will be an update
--> Running transaction check
---> Package openssh-server.x86_64 0:7.4p1-11.el7 will be updated
---> Package openssh-server.x86_64 0:7.4p1-16.el7 will be an update
--> Finished Dependency Resolution Dependencies Resolved =============================================================================================================================================
Package Arch Version Repository Size
=============================================================================================================================================
Updating:
openssh-clients x86_64 7.4p1-16.el7 base 655 k
Updating for dependencies:
openssh x86_64 7.4p1-16.el7 base 510 k
openssh-server x86_64 7.4p1-16.el7 base 458 k Transaction Summary
=============================================================================================================================================
Upgrade 1 Package (+2 Dependent packages) Total download size: 1.6 M
Downloading packages:
No Presto metadata available for base
warning: /var/cache/yum/x86_64/7/base/packages/openssh-7.4p1-16.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY-- ETA
Public key for openssh-7.4p1-16.el7.x86_64.rpm is not installed
(1/3): openssh-7.4p1-16.el7.x86_64.rpm | 510 kB 00:00:00
(2/3): openssh-clients-7.4p1-16.el7.x86_64.rpm | 655 kB 00:00:00
(3/3): openssh-server-7.4p1-16.el7.x86_64.rpm | 458 kB 00:00:01
---------------------------------------------------------------------------------------------------------------------------------------------
Total 935 kB/s | 1.6 MB 00:00:01
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Importing GPG key 0xF4A80EB5:
Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
Package : centos-release-7-4.1708.el7.centos.x86_64 (@anaconda)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : openssh-7.4p1-16.el7.x86_64 1/6
Updating : openssh-clients-7.4p1-16.el7.x86_64 2/6
Updating : openssh-server-7.4p1-16.el7.x86_64 3/6
Cleanup : openssh-server-7.4p1-11.el7.x86_64 4/6
Cleanup : openssh-clients-7.4p1-11.el7.x86_64 5/6
Cleanup : openssh-7.4p1-11.el7.x86_64 6/6
Verifying : openssh-7.4p1-16.el7.x86_64 1/6
Verifying : openssh-clients-7.4p1-16.el7.x86_64 2/6
Verifying : openssh-server-7.4p1-16.el7.x86_64 3/6
Verifying : openssh-clients-7.4p1-11.el7.x86_64 4/6
Verifying : openssh-7.4p1-11.el7.x86_64 5/6
Verifying : openssh-server-7.4p1-11.el7.x86_64 6/6 Updated:
openssh-clients.x86_64 0:7.4p1-16.el7 Dependency Updated:
openssh.x86_64 0:7.4p1-16.el7 openssh-server.x86_64 0:7.4p1-16.el7 Complete!
[hadoop@node3 ~]$ ssh node3
The authenticity of host 'node3 (fe80::bfbd:a651:53ba:e59d%ens33)' can't be established.
ECDSA key fingerprint is SHA256:+l31dPuaqq6XYXQvR7qWBn186HGwB9t+3lh0i+7vDWo.
ECDSA key fingerprint is MD5:92:e4:1f:2f:95:c7:65:a9:10:a5:16:9c:0d:d7:9c:15.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node3,fe80::bfbd:a651:53ba:e59d%ens33' (ECDSA) to the list of known hosts.
Last login: Fri May 10 17:40:47 2019 from 192.168.86.1
[hadoop@node3 ~]$
node4
[hadoop@node4 ~]$ mkdir .ssh
[hadoop@node4 ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hadoop/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/hadoop/.ssh/id_rsa.
Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:P4007EgHcn03gI4wdXr9x6ohEAQTG7CCNZEqNAvDEtw hadoop@node4
The key's randomart image is:
+---[RSA ]----+
|+.=o..=+o ... |
|+B.E .o= +.. . |
|=o+ . oo=oo o o |
|o. . o.=.. o o |
|. S = . o|
| . B + o |
| . * o . |
| o o |
| . |
+----[SHA256]-----+
[hadoop@node4 ~]$
[hadoop@node4 .ssh]$ cat id_rsa.pub >> authorized_keys
[hadoop@node4 .ssh]$ ls
authorized_keys id_rsa id_rsa.pub
[hadoop@node4 .ssh]$ cd ..
[hadoop@node4 ~]$ chmod .ssh
[hadoop@node4 ~]$ chmod .ssh/*
[hadoop@node4 ~]$ sudo yum -y install openssh-clients
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
base | 3.6 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
updates/7/x86_64/primary_db | 4.2 MB 00:00:01
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: centos.ustc.edu.cn
* updates: centos.ustc.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package openssh-clients.x86_64 0:7.4p1-11.el7 will be updated
---> Package openssh-clients.x86_64 0:7.4p1-16.el7 will be an update
--> Processing Dependency: openssh = 7.4p1-16.el7 for package: openssh-clients-7.4p1-16.el7.x86_64
--> Running transaction check
---> Package openssh.x86_64 0:7.4p1-11.el7 will be updated
--> Processing Dependency: openssh = 7.4p1-11.el7 for package: openssh-server-7.4p1-11.el7.x86_64
---> Package openssh.x86_64 0:7.4p1-16.el7 will be an update
--> Running transaction check
---> Package openssh-server.x86_64 0:7.4p1-11.el7 will be updated
---> Package openssh-server.x86_64 0:7.4p1-16.el7 will be an update
--> Finished Dependency Resolution Dependencies Resolved ================================================================================================================================
Package Arch Version Repository Size
================================================================================================================================
Updating:
openssh-clients x86_64 7.4p1-16.el7 base 655 k
Updating for dependencies:
openssh x86_64 7.4p1-16.el7 base 510 k
openssh-server x86_64 7.4p1-16.el7 base 458 k Transaction Summary
================================================================================================================================
Upgrade 1 Package (+2 Dependent packages) Total size: 1.6 M
Downloading packages:
warning: /var/cache/yum/x86_64/7/base/packages/openssh-7.4p1-16.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Importing GPG key 0xF4A80EB5:
Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
Package : centos-release-7-4.1708.el7.centos.x86_64 (@anaconda)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : openssh-7.4p1-16.el7.x86_64 1/6
Updating : openssh-clients-7.4p1-16.el7.x86_64 2/6
Updating : openssh-server-7.4p1-16.el7.x86_64 3/6
Cleanup : openssh-server-7.4p1-11.el7.x86_64 4/6
Cleanup : openssh-clients-7.4p1-11.el7.x86_64 5/6
Cleanup : openssh-7.4p1-11.el7.x86_64 6/6
Verifying : openssh-7.4p1-16.el7.x86_64 1/6
Verifying : openssh-clients-7.4p1-16.el7.x86_64 2/6
Verifying : openssh-server-7.4p1-16.el7.x86_64 3/6
Verifying : openssh-clients-7.4p1-11.el7.x86_64 4/6
Verifying : openssh-7.4p1-11.el7.x86_64 5/6
Verifying : openssh-server-7.4p1-11.el7.x86_64 6/6 Updated:
openssh-clients.x86_64 0:7.4p1-16.el7 Dependency Updated:
openssh.x86_64 0:7.4p1-16.el7 openssh-server.x86_64 0:7.4p1-16.el7 Complete!
[hadoop@node4 ~]$ ssh node4
The authenticity of host 'node4 (fe80::38af:ecce:cbe3:7f4b%ens32)' can't be established.
ECDSA key fingerprint is SHA256:CDJlRxM3LfysC51g+2RIesc/FI2OnTJRQi3w/WnK7jk.
ECDSA key fingerprint is MD5:74:5b:35:fa:fb:fe:31:d5:c4:a0:ff:d0:62:12:3e:d3.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node4,fe80::38af:ecce:cbe3:7f4b%ens32' (ECDSA) to the list of known hosts.
Last login: Fri May 10 17:40:49 2019 from 192.168.86.1
[hadoop@node4 ~]$ exit
logout
Connection to node4 closed.
[hadoop@node4 ~]$
到此为止每台机器的各自本身的无密码访问已经成功设置好了。
每台机器之间的无密码访问的设置
完成node2与node1
[hadoop@node2 ~]$ cat ~/.ssh/id_rsa.pub | ssh hadoop@node1 'cat >> ~/.ssh/authorized_keys'
The authenticity of host 'node1 (192.168.86.131)' can't be established.
ECDSA key fingerprint is SHA256:MgPYAE+6wpwD4f0o7rxojIbSEO1/6CWDDwebvR+m/NA.
ECDSA key fingerprint is MD5:9d:2a:c6:e4:c4:a1:::::a5:f1:9a:eb:2c:.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node1,192.168.86.131' (ECDSA) to the list of known hosts.
hadoop@node1's password:
[hadoop@node2 ~]$
完成node3与node1
[hadoop@node3 ~]$ cat ~/.ssh/id_rsa.pub | ssh hadoop@node1 'cat >> ~/.ssh/authorized_keys'
The authenticity of host 'node1 (192.168.86.131)' can't be established.
ECDSA key fingerprint is SHA256:MgPYAE+6wpwD4f0o7rxojIbSEO1/6CWDDwebvR+m/NA.
ECDSA key fingerprint is MD5:9d:2a:c6:e4:c4:a1:::::a5:f1:9a:eb:2c:.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node1,192.168.86.131' (ECDSA) to the list of known hosts.
hadoop@node1's password:
[hadoop@node3 ~]$
完成node4与node1
[hadoop@node4 ~]$ cat ~/.ssh/id_rsa.pub | ssh hadoop@node1 'cat >> ~/.ssh/authorized_keys'
The authenticity of host 'node1 (192.168.86.131)' can't be established.
ECDSA key fingerprint is SHA256:MgPYAE+6wpwD4f0o7rxojIbSEO1/6CWDDwebvR+m/NA.
ECDSA key fingerprint is MD5:9d:2a:c6:e4:c4:a1:::::a5:f1:9a:eb:2c:.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node1,192.168.86.131' (ECDSA) to the list of known hosts.
hadoop@node1's password:
[hadoop@node4 ~]$
将node1的authorized_keys分发给node2 node3 node4
[hadoop@node1 ~]$ cd .ssh
[hadoop@node1 .ssh]$ scp -r authorized_keys hadoop@node2:~/.ssh/
The authenticity of host 'node2 (192.168.86.132)' can't be established.
ECDSA key fingerprint is SHA256:6mgGUMwozj0Cl6LzCNi250qZGSruWJA7bAktWIEAkDo.
ECDSA key fingerprint is MD5:cc::8e:2c:8f:9d:6f:1d:1a:da:ef:::da:1f:2a.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node2,192.168.86.132' (ECDSA) to the list of known hosts.
hadoop@node2's password:
authorized_keys % .5MB/s :
[hadoop@node1 .ssh]$ scp -r authorized_keys hadoop@node3:~/.ssh/
The authenticity of host 'node3 (192.168.86.133)' can't be established.
ECDSA key fingerprint is SHA256:+l31dPuaqq6XYXQvR7qWBn186HGwB9t+3lh0i+7vDWo.
ECDSA key fingerprint is MD5::e4:1f:2f::c7::a9::a5::9c:0d:d7:9c:.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node3,192.168.86.133' (ECDSA) to the list of known hosts.
hadoop@node3's password:
authorized_keys % .6MB/s :
[hadoop@node1 .ssh]$ scp -r authorized_keys hadoop@node4:~/.ssh/
The authenticity of host 'node4 (192.168.86.134)' can't be established.
ECDSA key fingerprint is SHA256:CDJlRxM3LfysC51g+2RIesc/FI2OnTJRQi3w/WnK7jk.
ECDSA key fingerprint is MD5::5b::fa:fb:fe::d5:c4:a0:ff:d0:::3e:d3.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node4,192.168.86.134' (ECDSA) to the list of known hosts.
hadoop@node4's password:
authorized_keys
因为我们配置了4台机器之间的免密码登录了，因此我们可以将node1安装好的jdk分发给其他3台机器
分别给3台机器配置环境变量（操作都一样）
#java
export JAVA_HOME=/opt/modules/jdk1..0_65
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
使环境变量生效
3台操作都一样所以就不赘述了！！！
hadoop的安装
解压hadoop
[hadoop@node1 softwares]$ tar -zxf hadoop-3.1..tar.gz -C /opt/modules/
[hadoop@node1 softwares]$ ls
hadoop-2.7..tar.gz hadoop-3.1..tar.gz jdk-8u65-linux-x64.tar.gz
[hadoop@node1 softwares]$ cd ../modules/
[hadoop@node1 modules]$ ls
hadoop-3.1. jdk1..0_65
[hadoop@node1 modules]$
给hadoop配置环境变量
#hadoop
export HADOOP_HOME=/opt/modules/hadoop-3.1.
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
使其环境变量生效
[root@node1 hadoop-3.1.]# source /etc/profile
[root@node1 hadoop-3.1.]# hadoop version
Hadoop 3.1.
Source code repository https://github.com/apache/hadoop.git -r 1019dde65bcf12e05ef48ac71e84550d589e5d9a
Compiled by sunilg on --29T01:39Z
Compiled with protoc 2.5.
From source with checksum 64b8bdd4ca6e77cce75a93eb09ab2a9
This command was run using /opt/modules/hadoop-3.1./share/hadoop/common/hadoop-common-3.1..jar
[root@node1 hadoop-3.1.]#
3.Java和hadoop的安装的更多相关文章
- 2.2、CDH 搭建Hadoop在安装(安装Java Development Kit)
第2步:安装Java Development Kit 要安装Oracle JDK,您可以使用Cloudera Manager安装Cloudera提供的版本,也可以直接安装Oracle的其他版本. 继续 ...
- 【从零开始学习Hadoop】--1.Hadoop的安装
第1章 Hadoop的安装1. 操作系统2. Hadoop的版本3. 下载Hadoop4. 安装Java JDK5. 安装hadoop6. 安装rsync和ssh7. 启动hadoop8. 测试had ...
- hadoop环境安装及简单Map-Reduce示例
说明:这篇博客来自我的csdn博客,http://blog.csdn.net/lxxgreat/article/details/7753511 一.参考书:<hadoop权威指南--第二版(中文 ...
- hadoop群集安装中碰到的问题
在hadoop群集安装结束后,进行格式测试出现问题如下 格式化 cd /data/hadoop/bin ./hdfs namenode -format 15/01/21 05:21:17 WARN f ...
- 从零开始学习Hadoop--第1章 Hadoop的安装
Hadoop的安装比较繁琐,有如下几个原因:其一,Hadoop有非常多的版本:其二,官方文档不尽详细,有时候更新脱节,Hadoop发展的太快了:其三,网上流传的各种文档,或者是根据某些需求定制,或者加 ...
- Hadoop学习---安装部署
hadoop框架 Hadoop使用主/从(Master/Slave)架构,主要角色有NameNode,DataNode,secondary NameNode,JobTracker,TaskTracke ...
- hadoop分布式安装教程（转）
from:http://www.cnblogs.com/xia520pi/archive/2012/05/16/2503949.html 1.集群部署介绍 1.1 Hadoop简介 Hadoop是Ap ...
- Hadoop的安装与配置说明
安装hadoop是一件非常容易的事情,读者可以在官网上下载到最近的几个hadoop版本.网址为http://apache.etoak.com//hadoop/core/. 目前,hadoop可以运 ...
- hadoop生态圈安装详解（hadoop+zookeeper+hbase+pig+hive）
-------------------------------------------------------------------* 目录 * I hadoop分布式安装 * II zoo ...
随机推荐
- Java当中的IO流(上)
Java当中的IO流 在Java中,字符串string可以用来操作文本数据内容,字符串缓冲区是什么呢?其实就是个容器,也是用来存储很多的数据类型的字符串,基本数据类型包装类的出现可以用来解决字符串和基 ...
- AcWing：164. 可达性统计（拓扑排序 + 状态压缩算法)
给定一张N个点M条边的有向无环图,分别统计从每个点出发能够到达的点的数量. 输入格式 第一行两个整数N,M,接下来M行每行两个整数x,y,表示从x到y的一条有向边. 输出格式 输出共N行,表示每个点能 ...
- TCP连接建立 之 同时打开
假设两台设备双方均发送syn给对端,在发送syn之后状态处于SYN_SENT状态,此时双方均收到对端的发来的syn,则立即进入SYN_RECV状态,并且都向对端回复syn+ack,在收到syn+ack ...
- TCP被动打开 之 第三次握手-接收ACK
假定客户端主动打开,发送syn包到服务器,服务器创建连接请求控制块加入到队列,进入TCP_NEW_SYN_RECV 状态,发送syn+ack给客户端,并启动定时器,等待客户端回复最后一个握手ack: ...
- 解决Git 报错：warning: LF will be replaced by CRLF
Ruby命令 $ git init $ git add . 系统出现如下错误:warning: LF will be replaced by CRLF 原因分析:CRLF -- Carriage-Re ...
- linux调用本地shell脚本
package com.haiyisoft.cAssistant.adapter.rest; import java.io.BufferedReader;import java.io.File;imp ...
- 图片加载框架之fresco
FaceBook推出的图片处理框架主页: https://github.com/facebook/fresco中文文档:http://fresco-cn.org/docs/index.html 功能 ...
- 发布nuget包
首先在nuget(www.nuget.org)注册账号,这里可以使用微软账号直接登录 一般有两种方式 1:在工程上右键打包然后直接在网站上上传就可以 2:通过获取key,然后使用控制台提交 登录后在右 ...
- Jenkins笔录
1.Linux下安装jdk8的方法 ,只需要一条命令就可以安装jdk: yum install java-1.8.0-openjdk* -y 执行过这条命令无需配置,直接可以使用. 2.JDK12版本 ...
- EL表达式与JSTL标签库（一）
1.JSTL概述 JSTL标签库由标签库和EL表达式两个部分组成.JSTL标准标签库(Java Server Page Standard Tag Library),用来解决创建的页面的操作问题,包括输 ...