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前期博客
安装并配置Ambari-server
（1）检查仓库是否可用
[hadoop@ambari01 yum.repos.d]$ pwd /etc/yum.repos.d [hadoop@ambari01 yum.repos.d]$ yum repolist Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: mirrors.zju.edu.cn Updates-ambari-2.2.1.0 | 2.9 kB 00:00 Updates-ambari-2.2.1.0/primary_db | 89 kB 00:00 repo id repo name status Updates-ambari-2.2.1.0 ambari-2.2.1.0 - Updates 229 base CentOS-6 - Base 6,696 extras CentOS-6 - Extras 64 updates CentOS-6 - Updates 974 repolist: 7,963 [hadoop@ambari01 yum.repos.d]$
（2）安装Ambari-server
[hadoop@ambari01 yum.repos.d]$ pwd /etc/yum.repos.d [hadoop@ambari01 yum.repos.d]$ sudo yum install ambari-server Loaded plugins: fastestmirror, refresh-packagekit, security Setting up Install Process Loading mirror speeds from cached hostfile * base: mirrors.zju.edu.cn * extras: mirrors.zju.edu.cn * updates: mirrors.zju.edu.cn Updates-ambari-2.2.1.0 | 2.9 kB 00:00 Updates-ambari-2.2.1.0/primary_db | 89 kB 00:00 Resolving Dependencies --> Running transaction check ---> Package ambari-server.x86_64 0:2.2.1.0-161 will be installed --> Processing Dependency: postgresql-server >= 8.1 for package: ambari-server-2.2.1.0-161.x86_64 --> Running transaction check ---> Package postgresql-server.x86_64 0:8.4.20-6.el6 will be installed --> Processing Dependency: postgresql-libs(x86-64) = 8.4.20-6.el6 for package: postgresql-server-8.4.20-6.el6.x86_64 --> Processing Dependency: postgresql(x86-64) = 8.4.20-6.el6 for package: postgresql-server-8.4.20-6.el6.x86_64 --> Processing Dependency: libpq.so.5()(64bit) for package: postgresql-server-8.4.20-6.el6.x86_64 --> Running transaction check ---> Package postgresql.x86_64 0:8.4.20-6.el6 will be installed ---> Package postgresql-libs.x86_64 0:8.4.20-6.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved =============================================================================================================================================================================================== Package Arch Version Repository Size =============================================================================================================================================================================================== Installing: ambari-server x86_64 2.2.1.0-161 Updates-ambari-2.2.1.0 409 M Installing for dependencies: postgresql x86_64 8.4.20-6.el6 base 2.6 M postgresql-libs x86_64 8.4.20-6.el6 base 202 k postgresql-server x86_64 8.4.20-6.el6 base 3.4 M Transaction Summary =============================================================================================================================================================================================== Install 4 Package(s) Total download size: 415 M Installed size: 464 M Is this ok [y/N]: y Downloading Packages: (1/4): ambari-server-2.2.1.0-161.x86_64.rpm | 409 MB 00:22 (2/4): postgresql-8.4.20-6.el6.x86_64.rpm | 2.6 MB 00:02 (3/4): postgresql-libs-8.4.20-6.el6.x86_64.rpm | 202 kB 00:00 (4/4): postgresql-server-8.4.20-6.el6.x86_64.rpm | 3.4 MB 00:03 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 14 MB/s | 415 MB 00:29 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : postgresql-libs-8.4.20-6.el6.x86_64 1/4 Installing : postgresql-8.4.20-6.el6.x86_64 2/4 Installing : postgresql-server-8.4.20-6.el6.x86_64 3/4 Installing : ambari-server-2.2.1.0-161.x86_64 4/4 Verifying : postgresql-server-8.4.20-6.el6.x86_64 1/4 Verifying : postgresql-8.4.20-6.el6.x86_64 2/4 Verifying : postgresql-libs-8.4.20-6.el6.x86_64 3/4 Verifying : ambari-server-2.2.1.0-161.x86_64 4/4 Installed: ambari-server.x86_64 0:2.2.1.0-161 Dependency Installed: postgresql.x86_64 0:8.4.20-6.el6 postgresql-libs.x86_64 0:8.4.20-6.el6 postgresql-server.x86_64 0:8.4.20-6.el6 Complete! [hadoop@ambari01 yum.repos.d]$
（3）配置Ambari-server
[hadoop@ambari01 yum.repos.d]$ pwd /etc/yum.repos.d [hadoop@ambari01 yum.repos.d]$ sudo ambari-server setup Using python /usr/bin/python2 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):hadoop Adjusting ambari-server permissions and ownership... Checking firewall status... Checking JDK... [1] Oracle JDK 1.8 + Java Cryptography Extension (JCE) Policy Files 8 [2] Oracle JDK 1.7 + Java Cryptography Extension (JCE) Policy Files 7 [3] Custom JDK ============================================================================== Enter choice (1): 3 WARNING: JDK must be installed on all hosts and JAVA_HOME must be valid on all hosts. WARNING: JCE Policy files are required for configuring Kerberos security. If you plan to use Kerberos,please make sure JCE Unlimited Strength Jurisdiction Policy Files are valid on all hosts. Path to JAVA_HOME: /usr/local/jdk/jdk1.8.0_60 Validating JDK on Ambari Server...done. Completing setup... Configuring database... Enter advanced database configuration [y/n] (n)? n Configuring database... 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-2.2.1.0.161.jar ..... Adjusting ambari-server permissions and ownership... Ambari Server 'setup' completed successfully. [hadoop@ambari01 yum.repos.d]$
注意：
如果你是root用户，则这里就写root （推荐）
好比我这里是hadoop用户，则这里就写hadoop（不建议）
（4）查看并启动Ambari-server
[hadoop@ambari01 yum.repos.d]$ sudo service ambari-server status Using python /usr/bin/python2 Ambari-server status Ambari Server not running. Stale PID File at: /var/run/ambari-server/ambari-server.pid [hadoop@ambari01 yum.repos.d]$ sudo service ambari-server start Using python /usr/bin/python2 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. [hadoop@ambari01 yum.repos.d]$
（5）在C:WindowsSystem32driversetc目录下配置hosts文件
（6）输入地址登录ambari
默认的用户名和密码都为admin
登录之后的界面如下
那么到此为止，我们集群部署前的所有准备工作就做好了，接下来我们就可以部署hadoop集群了。
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