ambari实战 (1)ambari介绍 http://zilongzilong.iteye.com/blog/2272263
ambari实战 (2)ambari安装 http://zilongzilong.iteye.com/blog/2272223
1.Ambari 的安装准备
1.1 用VMWARE搭建三台linux虚拟机，三台机器配置免秘钥登录
1.1.1 三台虚拟机配置如下：
| hostname | ip | OS |
| hadoop1 | 192.168.202.132 | Linux version 2.6.32-358.el6.x86_64,CentOS release 6.4 (Final) |
| hadoop2 | 192.168.202.136 | Linux version 2.6.32-358.el6.x86_64,CentOS release 6.4 (Final) |
| hadoop3 | 192.168.202.173 | Linux version 2.6.32-358.el6.x86_64,CentOS release 6.4 (Final) |
1.1.2配置hostname，设置主机名
vi /etc/sysconfig/network
NETWORKING=yes HOSTNAME=hadoop1
1.1.3配置host，设置ip和主机名的映射
vi /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.202.132 hadoop1 192.168.202.136 hadoop2 192.168.202.173 hadoop3
1.1.4配置SSH免密码登录
[root@hadoop1 yum.repos.d]# ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Created directory '/root/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: 62:a2:d3:40:36:c2:1d:a3:c6:d2:75:5c:4f:98:bc:2b root@hadoop1 The key's randomart image is: +--[ RSA 2048]----+ | o...o.o. | |o.o.o.. +o | |o==. .. | |o+ . . | | . . o S. | | + oE.. | | o . . | | . | | | +-----------------+ [root@hadoop1 yum.repos.d]# cd /root/.ssh/ [root@hadoop1 .ssh]# ls id_rsa id_rsa.pub [root@hadoop1 .ssh]# cat id_rsa.pub>>authorized_keys [root@hadoop1 .ssh]# ls authorized_keys id_rsa id_rsa.pub [root@hadoop1 .ssh]# ssh root@hadoop2 cat /root/.ssh/id_rsa.pub>> authorized_ke ys root@hadoop2's password: [root@hadoop1 .ssh]# ssh root@hadoop3 cat /root/.ssh/id_rsa.pub>> authorized_ke ys The authenticity of host 'hadoop3 (192.168.202.173)' can't be established. RSA key fingerprint is 99:bf:9c:d2:93:3d:9d:94:1e:be:76:46:8f:83:d7:7f. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'hadoop3,192.168.202.173' (RSA) to the list of known hosts. root@hadoop3's password: [root@hadoop1 .ssh]# scp -r /root/.ssh/authorized_keys root@hadoop2:/root/.ssh/ root@hadoop2's password: authorized_keys 100% 1182 1.2KB/s 00:00 [root@hadoop1 .ssh]# scp -r /root/.ssh/authorized_keys root@hadoop3:/root/.ssh/ root@hadoop3's password: authorized_keys 100% 1182 1.2KB/s 00:00 [root@hadoop1 .ssh]# chmod 600 /root/.ssh/authorized_keys
1.2确保 Yum 可以使用
通过公共库（public repository），安装 Hadoop 这些软件，背后其实就是应用 Yum 在安装公共库里面的 rpm 包。所以这里需要您的机器都能访问 Internet。
1.3Python安装，版本最好大于或等于2.6
#查看Python版本 [root@hadoop3 ~]# python -V Python 2.6.6
1.4安装ambari时候尽量用root安装
Ambari 的 Server 会 SSH 到 Agent 的机器，拷贝并执行一些命令。因此我们需要配置 Ambari Server 到 Agent 的 SSH 无密码登录。 Ambari 会创建一些 OS 用户。
2.Ambari安装
2.1下载Ambari 的公共库文件（public repository）
wget http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.0.1/ambari.repo
2.2将下载的 ambari.repo 文件拷贝到 Linux 的系统目录/etc/yum.repos.d/
mv ambari.repo /etc/yum.repos.d/ambari.repo
2.3获取该公共库的所有的源文件列表
[root@hadoop1 hadoop]# cd /etc/yum.repos.d/ [root@hadoop1 yum.repos.d]# yum clean all [root@hadoop1 ~]# yum list|grep ambari ambari-server.noarch 2.0.1-45 @Updates-ambari-2.0.1 ambari-agent.x86_64 2.0.1-45 Updates-ambari-2.0.1 ambari-log4j.noarch 2.0.1.45-1 Updates-ambari-2.0.1 ambari-metrics-collector.x86_64 2.0.1-45 Updates-ambari-2.0.1 ambari-metrics-common.noarch 2.0.1-45 Updates-ambari-2.0.1 ambari-metrics-hadoop-sink.x86_64 2.0.1-45 Updates-ambari-2.0.1 ambari-metrics-monitor.x86_64 2.0.1-45 Updates-ambari-2.0.1 hdp_mon_ganglia_addons.noarch 2.0.1.45-1.el6 Updates-ambari-2.0.1 hdp_mon_nagios_addons.noarch 2.0.1.45-1.el6 Updates-ambari-2.0.1
2.4安装 Ambari Server
[root@hadoop1 ambari-server]# yum install ambari-server Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile * base: mirrors.163.com * extras: mirrors.163.com * updates: mirrors.163.com Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package ambari-server.noarch 0:2.0.1-45 will be installed --> Finished Dependency Resolution Dependencies Resolved =========================================== Package Arch Version Repository Size =========================================== Installing: ambari-server noarch 2.0.1-45 Updates-ambari-2.0.1 86 M Transaction Summary =========================================== Install 1 Package(s) Total download size: 86 M Installed size: 104 M Is this ok [y/N]: y Downloading Packages: ambari-server-2.0.1-45.noarch.rpm | 86 MB 18:34 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : ambari-server-2.0.1-45.noarch 1/1 Verifying : ambari-server-2.0.1-45.noarch 1/1 Installed: ambari-server.noarch 0:2.0.1-45 Complete! [root@hadoop1 ambari-server]#
2.5配置 Ambari Server
[root@hadoop1 ambari-server]# ambari-server setup Using python /usr/bin/python2.6 Setup ambari-server Checking SELinux... SELinux status is 'disabled' Customize user account for ambari-server daemon [y/n] (n)? y Enter user account for ambari-server daemon (root):root Adjusting ambari-server permissions and ownership... Checking iptables... Checking JDK... [1] Oracle JDK 1.7 [2] Oracle JDK 1.6 [3] - Custom JDK ========================= Enter choice (1): 1 To download the Oracle JDK and the Java Cryptography Extension (JCE) Policy Files you must accept the license terms found at http://www.oracle.com/technetwork/java/javase/terms/license/index.html and not accepting will cancel the Ambari Server setup and you must install the JDK and JCE files manually. Do you accept the Oracle Binary Code License Agreement [y/n] (y)? y Downloading JDK from http://public-repo-1.hortonworks.com/ARTIFACTS/jdk-7u67-linux-x64.tar.gz to /var/lib/ambari-server/resources/jdk-7u67-linux-x64.tar.gz jdk-7u67-linux-x64.tar.gz... 100% (135.8 MB of 135.8 MB) Successfully downloaded JDK distribution to /var/lib/ambari-server/resources/jdk-7u67-linux-x64.tar.gz Installing JDK to /usr/jdk64/ Successfully installed JDK to /usr/jdk64/ Downloading JCE Policy archive from http://public-repo-1.hortonworks.com/ARTIFACTS/UnlimitedJCEPolicyJDK7.zip to /var/lib/ambari-server/resources/UnlimitedJCEPolicyJDK7.zip UnlimitedJCEPolicyJDK7.zip... 100% Successfully downloaded JCE Policy archive to /var/lib/ambari-server/resources/UnlimitedJCEPolicyJDK7.zip Installing JCE policy... Completing setup... Configuring database... Enter advanced database configuration [y/n] (n)? y Configuring database... ========================= Choose one of the following options: [1] - PostgreSQL (Embedded) [2] - Oracle [3] - MySQL [4] - PostgreSQL ========================= Enter choice (1): Database name (ambari): Postgres schema (ambari): Username (ambari): Enter Database Password (bigdata): Re-enter password: Default properties detected. Using built-in database. Configuring ambari database... Checking PostgreSQL... Running initdb: This may take upto a minute. Initializing database: [ OK ] About to start PostgreSQL Configuring local database... Connecting to local database...done. Configuring PostgreSQL... Restarting PostgreSQL Extracting system views... .ambari-admin-2.0.1.45.jar .. Adjusting ambari-server permissions and ownership... Ambari Server 'setup' completed successfully. [root@hadoop1 ambari-server]#
2.6启动 Ambari
[root@hadoop1 ambari-server]# ambari-server start Using python /usr/bin/python2.6 Starting ambari-server Ambari Server running with administrator privileges. Organizing resource files at /var/lib/ambari-server/resources... Server PID at: /var/run/ambari-server/ambari-server.pid Server out at: /var/log/ambari-server/ambari-server.out Server log at: /var/log/ambari-server/ambari-server.log Waiting for server start.................... Ambari Server 'start' completed successfully. [root@hadoop1 ambari-server]#
2.7登录 Ambari server管理页面
登录URL：http://192.168.202.132:8080/， 登录账号密码：admin/admin
Ambari Server 就安装完成了。
