GDB 调试 Mysql 实战（一）源码编译安装

小咪咪 2022-03-06 23:58 350阅读 0赞

## 下载源码 ##

git clone https://github.com/mysql/mysql-server.git
    cd mysql-server
    git checkout 5.7

## 编译安装 ##

安装依赖

yum install -y cmake make gcc gcc-c++ ncurses-devel bison gdb

需要注意的一点，需要指定 boost 路径，会 cmake 的时候自动下载

cd BUILD; 
    cmake .. -DDOWNLOAD_BOOST=1 -DWITH_BOOST=<directory> -DWITH_DEBUG=1 -DWITH_UNIT_TESTS=off
    make 
    make install

最后程序安装到了`/usr/local/mysql`目录

## 创建专用用户 ##

groupadd mysql
    useradd -s /sbin/nologin -M -g mysql mysql

初始化数据库

cd /usr/local/mysql/
    bin/mysqld --defaults-file=/etc/my.cnf --initialize --user=mysql
    
    2019-02-01T07:45:58.147032Z 1 [Note] A temporary password is generated for root@localhost: jss<swtX.8og

连接数据库

[root@bogon bin]# ./mysql -h localhost -uroot
    ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

原来是因为配置文件里面没有置顶客户端的 socket 文件

cat /etc/my.cnf
    [mysqld]
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    # Disabling symbolic-links is recommended to prevent assorted security risks
    symbolic-links=0
    # Settings user and group are ignored when systemd is used.
    # If you need to run mysqld under a different user or group,
    # customize your systemd unit file for mariadb according to the
    # instructions in http://fedoraproject.org/wiki/Systemd
    
    [mysqld_safe]
    log-error=/var/log/mariadb/mariadb.log
    pid-file=/var/run/mariadb/mariadb.pid
    
    #
    # include all files from the config directory
    #
    !includedir /etc/my.cnf.d

增加

[client]
    default-character-set=utf8
    socket=/var/lib/mysql/mysql.sock
    [mysql]
    default-character-set=utf8
    socket=/var/lib/mysql/mysql.sock

再次连接就 ok 了。

## 修改默认密码 ##

SET PASSWORD = PASSWORD('123456');
    ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;
    flush privileges;

## 导入测试数据 ##

/usr/local/mysql/bin/mysql -uroot -p123456 test < article_rank.sql

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[https_www.linuxidc.com_Linu...]: https://www.linuxidc.com/Linux/2018-05/152246.htm
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