为了方便以后的管理，我们要对机器做一些配置
安装JDK 下载地址： rpm -ivh jdk-8u161-linux-x64.rpm java -version 通过vi /etc/hostname 进行修改机器名 这里主要是为了可以实现通过名称来查找相应的服务器 各个节点修改成相应的名称，分别为master,slave1.slave2 vi /etc/hosts 192.168.12.101 master 192.168.12.102 slave1 192.168.12.103 slave2 vi /etc/sysconfig/network NETWORKING=yes HOSTNAME=master（其他的节点也对应修改） 关闭防火墙 [root@master~]#systemctl disable firewalld [root@master~]#systemctl stop firewalld ssh免密 ssh-keygen ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host不同的环境会有不同的问题存在，大家可以参考官网手册进行相应的安装。
安装ambari-serverambariserver将最终带我们完成大数据集群的安装
yum install ambari-server Installing : postgresql-libs-9.2.18-1.el7.x86_64 1/4 Installing : postgresql-9.2.18-1.el7.x86_64 2/4 Installing : postgresql-server-9.2.18-1.el7.x86_64 3/4 Installing : ambari-server-2.7.5.0-124.x86_64 4/4 Verifying : ambari-server-2.7.5.0-124.x86_64 1/4 Verifying : postgresql-9.2.18-1.el7.x86_64 2/4 Verifying : postgresql-server-9.2.18-1.el7.x86_64 3/4 Verifying : postgresql-libs-9.2.18-1.el7.x86_64 4/4 Installed: ambari-server.x86_64 0:2.7.5.0-72 Dependency Installed: postgresql.x86_64 0:9.2.18-1.el7 postgresql-libs.x86_64 0:9.2.18-1.el7 postgresql-server.x86_64 0:9.2.18-1.el7 Complete! 启动与设置设置
ambari-server setup不推荐直接用内嵌的postgresql，因为其他服务还要用mysql
安装配置 MySql yum install -y wget wget -i -c rpm -ivh mysql57-community-release-el7-10.noarch.rpm yum -y install mysql-community-server systemctl enable mysqld systemctl start mysqld.service systemctl status mysqld.service grep "password" /var/log/mysqld.log mysql -uroot -p set global validate_password_policy=0; set global validate_password_length=1; set global validate_password_special_char_count=0; set global validate_password_mixed_case_count=0; set global validate_password_number_count=0; select @@validate_password_number_count,@@validate_password_mixed_case_count,@@validate_password_number_count,@@validate_password_length; ALTER USER 'root'@'localhost' IDENTIFIED BY 'password'; grant all privileges on . to 'root'@'%' identified by 'password' with grant option; flush privileges; exit yum -y remove mysql57-community-release-el7-10.noarch 下载mysql驱动，放到三台的 /opt/ambari/mysql-connector-java-5.1.48.jar 初始化数据库 mysql -uroot -p create database ambari; use ambari source /var/lib/ambari-server/resources/Ambari-DDL-MySQL-CREATE.sql CREATE USER 'ambari'@'localhost' IDENTIFIED BY 'bigdata'; CREATE USER 'ambari'@'%' IDENTIFIED BY 'bigdata'; GRANT ALL PRIVILEGES ON ambari.* TO 'ambari'@'localhost'; GRANT ALL PRIVILEGES ON ambari.* TO 'ambari'@'%'; FLUSH PRIVILEGES;完成ambari的配置
[root@localhost download]# ambari-server setup Using python /usr/bin/python Setup ambari-server Checking SELinux... SELinux status is 'enabled' SELinux mode is 'permissive' WARNING: SELinux is set to 'permissive' mode and temporarily disabled. OK to continue [y/n] (y)? y Customize user account for ambari-server daemon [y/n] (n)? y Enter user account for ambari-server daemon (root): Adjusting ambari-server permissions and ownership... Checking firewall status... Checking JDK... [1] Oracle JDK 1.8 + Java Cryptography Extension (JCE) Policy Files 8 [2] Custom JDK ============================================================================== Enter choice (1): 2 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/lib/jvm/java-1.8.0-openjdk-1.8.0.242.b08-0.el7_7.x86_64/jre Validating JDK on Ambari Server...done. Check JDK version for Ambari Server... JDK version found: 8 Minimum JDK version is 8 for Ambari. Skipping to setup different JDK for Ambari Server. Checking GPL software agreement... GPL License for LZO: https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html Enable Ambari Server to download and install GPL Licensed LZO packages [y/n] (n)? y 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 / MariaDB [4] - PostgreSQL [5] - Microsoft SQL Server (Tech Preview) [6] - SQL Anywhere [7] - BDB ============================================================================== Enter choice (1): 3 Hostname (localhost): Port (3306): Database name (ambari): Username (ambari): Enter Database Password (bigdata): Configuring ambari database... Enter full path to custom jdbc driver: /opt/ambari/mysql-connector-java-5.1.48.jar Copying /opt/ambari/mysql-connector-java-5.1.48.jar to /usr/share/java Configuring remote database connection properties... WARNING: Before starting Ambari Server, you must run the following DDL directly from the database shell to create the schema: /var/lib/ambari-server/resources/Ambari-DDL-MySQL-CREATE.sql Proceed with configuring remote database connection properties [y/n] (y)? y Extracting system views... ..... Ambari repo file contains latest json url , updating stacks repoinfos with it... Adjusting ambari-server permissions and ownership... Ambari Server 'setup' completed successfully.随后就可以启动了
ambari-server start ambari-server status ambari-server stop访问如下地址
<your.ambari.server>:8080 集群安装