GDB debugging Mysql source compilation and installation

Download source code git clone https://github.com/mysql/mysql-server.git cd mysql-server git checkout 5.7 Compilation and installation Installation de...
Download source code
Compilation and installation
Create a dedicated user
Change default password
Import test data

Download source code

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

Compilation and installation

Installation dependency

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

Note that you need to specify the boost path, which will be downloaded automatically when cmake

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

Finally, the program is installed in / usr/local/mysql directory

Create a dedicated user

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

Initialize database

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

Connect to database

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

The reason is that there is no socket file of the top client in the configuration file

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

increase

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

Just connect again.

Change default password

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

Import test data

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

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4 December 2019, 11:32 | Views: 7526

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