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這篇文章主要介紹了Hadoop部署的基礎(chǔ)設(shè)施操作有哪些的相關(guān)知識,內(nèi)容詳細(xì)易懂,操作簡單快捷,具有一定借鑒價值,相信大家閱讀完這篇Hadoop部署的基礎(chǔ)設(shè)施操作有哪些文章都會有所收獲,下面我們一起來看看吧。
支持最好的平臺:GNU/Linux
依賴的軟件:
Java™ must be installed. Recommended Java versions are described at HadoopJavaVersions.Hadoop基于Java開發(fā),Java的移動性好
ssh must be installed and sshd must be running to use the Hadoop scripts that manage remote Hadoop daemons.
部署模式:
Local (Standalone) Mode 單機(jī)模式,主要用于debug
Pseudo-Distributed Mode 偽分布式,單節(jié)點(diǎn)多角色
Fully-Distributed Mode 完全分布式,多節(jié)點(diǎn)多角色
操作系統(tǒng)、環(huán)境、網(wǎng)絡(luò)、必須軟件
設(shè)置IP及主機(jī)名
關(guān)閉防火墻&selinux
設(shè)置hosts映射
時間同步
安裝jdk
設(shè)置SSH免秘鑰
可以正常聯(lián)網(wǎng)查看IP
[root@localhost ~]# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.118 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::3db1:f589:4820:5457 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:18:10:17 txqueuelen 1000 (Ethernet) RX packets 462062 bytes 670399544 (639.3 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 166351 bytes 11096211 (10.5 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 84 bytes 13940 (13.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 84 bytes 13940 (13.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 ether 52:54:00:5a:69:e1 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0 // 配置 DEVICE=eth0 #HWADDR=00:0C:29:42:15:C2 TYPE=Ethernet ONBOOT=yes NM_TROLLED=yes BOOTPROTO=static IPADDR=192.168.150.11 NETMASK=255.255.255.0 GATEWAY=192.168.150.2 DNS1=223.5.5.5 DNS2=114.114.114.114
修改配置文件設(shè)置主機(jī)名
[root@localhost ~]# vi /etc/sysconfig/network // 設(shè)置主機(jī)名并保存退出 HOSTNAME=node01
//關(guān)閉防火墻 [root@localhost ~]# systemctl stop firewalld //關(guān)閉開機(jī)啟動防火墻 [root@localhost ~]# systemctl disable firewalld.service Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service. Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service. [root@localhost ~]# [root@localhost ~]# vi /etc/selinux/config //將配置文件中的SELINUX設(shè)置為disabled SELINUX=disabled
增加映射關(guān)系,因?yàn)樵诂F(xiàn)在搭建環(huán)境的時候,一般會做解耦,不會再軟件配置文件中寫ip地址,主要使用主機(jī)名,就和dns解析一樣,避免ip改變時要修改很多配置文件
[root@localhost ~]# vi /etc/hosts // 增加映射關(guān)系 192.168.0.118 node01 192.168.0.119 node02
所有節(jié)點(diǎn)時間需同步一致,不然未來做心跳的時候會有問題
[root@localhost ~]# date Fri Dec 30 22:23:45 CST 2022 // 安裝ntp [root@localhost ~]# yum install ntp -y Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirrors.163.com * extras: mirrors.163.com * updates: mirrors.163.com Package ntp-4.2.6p5-29.el7.centos.2.x86_64 already installed and latest version Nothing to do [root@localhost ~]# vi /etc/ntp.conf // 增加配置 server ntp1.aliyun.com // 啟動ntpd [root@localhost ~]# systemctl start ntpd.service // 配置開機(jī)啟動ntpd [root@localhost ~]# systemctl enable ntpd.service Created symlink from /etc/systemd/system/multi-user.target.wants/ntpd.service to /usr/lib/systemd/system/ntpd.service. [root@localhost ~]#
設(shè)置環(huán)境變量的時候要記得設(shè)置兩次,一次在安裝jdk的時候設(shè)置,一次在搭建Hadoop的時候設(shè)置
去官網(wǎng)下載jdk,最好是rpm包,然后上傳到服務(wù)器節(jié)點(diǎn)中(使用jdk壓縮包解壓安裝需要做很多其他的配置)
這里使用過windows下載,通過scp命令上傳到118節(jié)點(diǎn)中
F:\workspace\demo>scp C:\Users\43866\Downloads\jdk-8u351-linux-x64.rpm root@192.168.0.118:/usr/jdk root@192.168.0.118's password: jdk-8u351-linux-aarch74.rpm 100% 59MB 70.1MB/s 00:00 F:\workspace\demo>
在118節(jié)點(diǎn)中使用命令安裝jdk
[root@node01 jdk]# rpm -i jdk-8u351-linux-x64.rpm warning: jdk-8u351-linux-x64.rpm: Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEY Unpacking JAR files... tools.jar... plugin.jar... javaws.jar... deploy.jar... rt.jar... jsse.jar... charsets.jar... localedata.jar... [root@node01 jdk]#
設(shè)置JAVA_HOME環(huán)境變量
[root@node01 default]# vi /etc/profile // 追加環(huán)境變量并保存文件 export JAVA_HOME=/usr/java/default export PATH=$PATH:$JAVA_HOME/bin
想要使用Hadoop腳本就必須設(shè)置ssh免密
1、檢查是否已設(shè)置ssh免密
[root@node01 default]# ssh localhost The authenticity of host 'localhost (::1)' can't be established. ECDSA key fingerprint is SHA256:rDsunaro1f5LyKkEeNohXfDD9oEglNXtviD/JZtA1dw. ECDSA key fingerprint is MD5:51:38:8d:fc:e4:d2:c7:ce:66:09:c8:f2:e6:9e:a7:f2. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'localhost' (ECDSA) to the list of known hosts. root@localhost's password:
通過ssh localhost命令檢查發(fā)現(xiàn)需要輸入密碼,說明還未設(shè)置ssh免密,而且還可以自動生成.ssh文件,這個文件要創(chuàng)建的話比較麻煩
2、生成秘鑰和公鑰
如果118節(jié)點(diǎn)想免密登錄到118節(jié)點(diǎn)(自己):
118節(jié)點(diǎn)就要生成公鑰和秘鑰,且將公鑰放到 ~/.ssh/authorized_keys中
[root@node01 .ssh]# ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa Generating public/private dsa key pair. Your identification has been saved in /root/.ssh/id_dsa. Your public key has been saved in /root/.ssh/id_dsa.pub. The key fingerprint is: SHA256:GHhKB7GeoYYlNPWJpCZ+VoABUyIgDbdYrjjyAdgui1k root@node01 The key's randomart image is: +---[DSA 1024]----+ |@BB+o. | |=X=.++. | |*o=.=++ | |=B +.* o | |B.Eo+ . S | |oOo. | |+ . | | | | | +----[SHA256]-----+ [root@node01 .ssh]# cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys [root@node01 .ssh]# [root@node01 .ssh]# ssh 192.168.0.118 Last login: Sat Dec 31 13:52:49 2022 from 192.168.0.117 [root@node01 ~]#
119節(jié)點(diǎn)包含了118節(jié)點(diǎn)的公鑰,118就可以免密登錄
關(guān)于“Hadoop部署的基礎(chǔ)設(shè)施操作有哪些”這篇文章的內(nèi)容就介紹到這里,感謝各位的閱讀!相信大家對“Hadoop部署的基礎(chǔ)設(shè)施操作有哪些”知識都有一定的了解,大家如果還想學(xué)習(xí)更多知識,歡迎關(guān)注億速云行業(yè)資訊頻道。
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