标签:10.2 local 31 centos7 mysqld usr mysql MariaDB root
1、准备用户并创建存放数据库的文件夹
[root@centos7 ~]#groupadd -r -g 306 mysql
[root@centos7 ~]#useradd -r -g 306 -u 306 -d /data/mysql mysql
[root@centos7 ~]#mkdir /data/mysql
2、下载安装包并解压到指定的路径
[root@centos7 ~]#tar xf mariadb-10.2.31-linux-systemd-x86_64.tar.gz -C /usr/local/
[root@centos7 ~]#cd /usr/local/
#####创建软链接是为了后续升级数据库方便
[root@centos7 local]#ln -s mariadb-10.2.31-linux-systemd-x86_64/ mysql
3、数据库文件初始化
####注意:要和/etc/init.d/mysqld里面的路径保持一致
[root@centos7 ~]#/usr/local/mysql/scripts/mysql_install_db --datadir=/data/mysql --basedir=/usr/local/mysql --user=mysql
4、给相关文件目录赋予权限
[root@centos7 ~]#chown -R mysql.mysql /data/mysql
[root@centos7 ~]#chown -R mysql.mysql /usr/local/mariadb* /usr/local/mysql/
5、配置启动数据库的配置文件
[root@centos7 ~]#cat /etc/my.cnf
[mysqld]
datadir=/data/mysql
basedir=/usr/local/mysql
socket=/usr/local/mysql/mysql.sock
port=3306
pid-file=/usr/local/mysql/mysql.pid
[client]
socket=/usr/local/mysql/mysql.sock
6、配置数据的启动文件
[root@centos7 ~]#cp -a /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
[root@centos7 ~]#sed -Ei 's#^(basedir=)$#\1\/usr\/local\/mysql#' /etc/init.d/mysqld
[root@centos7 ~]#sed -Ei 's#^(datadir=)$#\1\/data\/mysql#' /etc/init.d/mysqld
8、PATH路径
[root@centos7 ~]#echo "PATH=/usr/local/mysql/bin:$PATH" > /etc/profile.d/mysql.sh
[root@centos7 ~]#. /etc/profile.d/mysql.sh
9、启动数据库并设置开机启动
[root@centos7 ~]#systemctl start mysql
[root@centos7 ~]#chkconfig --add mysqld
10、验证数据库是否编译成功
[root@centos7 ~]#ss -ntulp
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp LISTEN 0 128 *:22 *:* users:(("sshd",pid=1369,fd=3))
tcp LISTEN 0 100 127.0.0.1:25 *:* users:(("master",pid=2270,fd=13))
tcp LISTEN 0 80 :::3306 :::* users:(("mysqld",pid=1667,fd=19))
[root@centos7 ~]#mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 10
Server version: 10.2.31-MariaDB MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
错误分析:
1、mysql命令找不到
###通常是PATH路径问题
echo "PATH=/usr/local/mysql/bin:$PATH" > /etc/profile.d/mysql.sh/
2、如下问题
###在配置文件注释该行
[root@centos7 ~]#cat /etc/my.cnf |grep -n "symbolic-links=0"
10:symbolic-links=0
3、缺少相关包
[root@centos7 ~]#yum install libncurses* -y
4、权限问题
[ERROR] Can't start server : Bind on unix socket: Permission denied
[ERROR] Do you already have another mysqld server running on socket:
[ERROR] /usr/local/mysql/mysql.sock ?
Aborting
[ERROR] Can't start server : Bind on unix socket: Permission denied
[ERROR] Do you already have another mysqld server running on socket: /usr/local/mysql/mysql.sock ?
[ERROR] Aborting
mysqld_safe mysqld from pid file /usr/local/mysql/mysql.pid ended
[root@centos7 ~]#chown -R mysql.mysql /usr/local/mariadb* /usr/local/mysql*
标签:10.2,local,31,centos7,mysqld,usr,mysql,MariaDB,root 来源: https://blog.csdn.net/weixin_58519482/article/details/121617890
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