【Centos7.6安装CDH6.1.0】第二节 JDK、Mysql配置

JDK（已安装者跳过）

下载linux适用版jdk

https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

下载后分发至mini1、mini2、mini3，解压，配置环境变量至/etc/profile，这里贴一下博主的profile相关内容:

export JAVA_HOME=/home/hadoop/apps/jdk1.8.0_191
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

环境变量配置完成后，执行：

[root@mini2 ~]# source /etc/profile

验证：

[root@mini2 ~]# java -version
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)

mysql配置

root用户下，在mini1上依次执行如下命令（：

yum remove mysql
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
yum localinstall mysql57-community-release-el7-8.noarch.rpm
yum install mysql-community-server
yum install mysql-devel
systemctl start mysqld
systemctl enable mysqld

等待安装完成后，寻找初始密码：

[root@mini1 mysql]# cat /var/log/mysqld.log | grep "temporary password"
2020-01-31T18:48:39.318109Z 1 [Note] A temporary password is generated for root@localhost: 9.Hkdd:t??2m

使用初始密码登录：

[root@mini1 mysql]# mysql -uroot -p9.Hkdd:t??2m
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.29

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> 

修改mysql root登录密码：

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '1QAZ@wsx';

注意，新密码设置要求包含大写字母、小写字母及特殊符号(如~!@#)。

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安装jdbc

root用户下，在mini1上执行命令：

wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.46.tar.gz
tar zxvf mysql-connector-java-5.1.46.tar.gz
mkdir -p /usr/share/java/
cd mysql-connector-java-5.1.46
cp mysql-connector-java-5.1.46-bin.jar /usr/share/java/mysql-connector-java.jar

建库、建用户、设置用户访问权限

root用户下，创建脚本mysql_init.sh：

#!/bin/bash
################################################################################################################################
#--设计人员：Jack-Roy
#--设计日期：2019-06-18
#--联系方式：[email protected]
#--功能说明: 建库、建用户、设置用户访问权限
#--版    本：v-1.0.0
################################################################################################################################

HOST=192.168.26.11
USER=root
export MYSQL_PASSWORD=1QAZ@wsx
PORT=3306
mysql -h$HOST -P$PORT -u$USER -p$MYSQL_PASSWORD <<EOF
CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE amon DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE rman DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE hue DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE metastore DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE sentry DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE nav DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE navms DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE DATABASE oozie DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
CREATE USER 'scm'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'amon'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'rman'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'hue'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'hive'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'sentry'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'nav'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'navms'@'%' IDENTIFIED BY '1QAZ@wsx';
CREATE USER 'oozie'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON scm.* TO 'scm'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON amon.* TO 'amon'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON rman.* TO 'rman'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON hue.* TO 'hue'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON metastore.* TO 'hive'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON sentry.* TO 'sentry'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON nav.* TO 'nav'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON navms.* TO 'navms'@'%' IDENTIFIED BY '1QAZ@wsx';
GRANT ALL ON oozie.* TO 'oozie'@'%' IDENTIFIED BY '1QAZ@wsx';
EOF

执行脚本：

[root@mini1 ~]# sh mysql_init.sh

登录mysql验证：

[root@mini1 ~]# mysql -uroot -p1QAZ@wsx
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.29

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| JackRoy            |
| Test               |
| amon               |
| bigeye             |
| bigeye_barnyard    |
| hue                |
| information_schema |
| metastore          |
| mysql              |
| nav                |
| navms              |
| oozie              |
| performance_schema |
| rman               |
| scm                |
| sentry             |
| sys                |
+--------------------+
17 rows in set (0.00 sec)

跳转

第一节 基础环境准备（host域名及免密登录）
第二节 JDK、mysql配置
第三节 Python2.7.5安装、时钟同步及CDH本地Yum源搭建
第四节 安装并启动CM组件
第五节 WebUI方式安装CDH6