mysql怎么样进行安装
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一、下载安装包
1，下载hive http://mirrors.hust.edu.cn/apache/ 得到apache-hive-1.1.0.tar.gz ，放到该目录下 /home/
2，下载mysql https://dev.mysql.com/downloads/file/?id=471503得到
我的linux版本是6.8,下载时最好选择glib版本，如果下载其它各种组合包，会提示各种依赖关系，比较麻烦
拷贝到该目录下/mysql/
二、安装mysql
1.卸载系统自带的mysql相关安装包，仅卸载 mysql 开头的包
rpm -qa | grep -i mysql
rpm -ev mysql-community-libs-5.7.19-1.el7.x86_64 --nodeps
2.创建用户和组
groupadd mysql
useradd -r -g mysql mysql
3.安装
解压tar -zxvf mysql-5.7.19-linux-glibc2.12-x86_64.tar.gz -C ../usr/local
修改目录[root@hadoop local]# mv mysql-5.7.19-linux-glibc2.12-x86_64/ mysql
添加授权[root@hadoop mysql]# chown -R mysql.mysql /usr/local/mysql
新建data目录[root@hadoop mysql]# mkdir data
4.安装./bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
注意最后一行，这也是和之有版本不同的地方，它给了root一个初始密码，此root为mysql的root用户，后面要登录的时候要用到这个密码。#H#,?*Els4G&
4.将mysql/目录下除了data/目录的所有文件，改回root用户所有，mysql用户只需作为mysql/data/目录下所有文件的所有者。
[root@hadoop mysql]# chown -R root .
[root@hadoop mysql]# chown -R mysql data
5.创建tmp文件夹，并授权
[root@hadoop mysql]# mkdir tmp
[root@hadoop mysql]# chown -R mysql:mysql tmp
6.复制并编辑配置文件
[root@hadoop etc]# cp my.cnf.rpmsave my.cnf
[root@hadoop etc]# vi my.cnf
7.添加以下内容
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
socket = /usr/local/mysql/tmp/mysql.sock
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
8.将mysql.server拷贝到/etc/init.d/mysql
[root@hadoop support-files]# cp mysql.server /etc/init.d/mysql
[root@hadoop init.d]# chmod +x mysql
9.把mysql注册为开机启动的服务
[root@hadoop init.d]# chkconfig --add mysql
[root@hadoop init.d]# chkconfig --list mysql
mysql 0:off 1:off 2:on 3:on 4:on 5:on 6:off
10.启动
[root@hadoop init.d]# /etc/init.d/mysql start
Starting MySQL.Logging to '/usr/local/mysql/data/hadoop.err'.
. [ OK ]
11.修改环境变量
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:/usr/local/mysql:/usr/local/mysql/bin
[root@hadoop init.d]# source /etc/profile
12.使用root登录时报错
[root@hadoop init.d]# mysql -uroot -p #H#,?*Els4G&
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
13.修改 /etc/my.cnf文件，补充mysql和client配置
[mysqld]
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
socket = /usr/local/mysql/tmp/mysql.sock
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
skip-grant-tables
[mysql]
default-character-set=utf8
socket = /usr/local/mysql/tmp/mysql.sock
[client]
default-character-set=utf8
socket = /usr/local/mysql/tmp/mysql.sock
14.重新登录,并输入新密码
[root@hadoop etc]# mysql -uroot -p #H#,?*Els4G&
Enter password: mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.19 MySQL Community Server (GPL)
Copyright (c) 2000, 2017, 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>
15.mysql服务的开启和关闭
#/etc/init.d/mysql start 或者 serivce mysql start 或者 bin/mysqld_safe&
#/etc/init.d/mysql stop 或者 service mysql stop 或者 bin/mysqladmin -uroot -p
三、添加hive用户，会提示如下错误
mysql> create user 'hive'@'%' identified by 'hive';
ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
强制写出
mysql> flush privileges;
重新执行
mysql> create user 'hive'@'%' identified by 'hive';
Query OK, 0 rows affected (0.00 sec)
mysql> select host,user from user;
+-----------+---------------+
| host | user |
+-----------+---------------+
| % | hive |
| localhost | mysql.session |
| localhost | mysql.sys |
| localhost | root |
+-----------+---------------+
4 rows in set (0.00 sec)
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