linux系统应该怎样组装mysql5.7.21版本数据库

发布时间：2023-08-12 14:57:48 所属栏目：MySql教程来源：

导读：主要给大家带来linux系统应该如何安装mysql5.7.21版本数据库，所讲到的知识，与书籍略有不同，都是亿速云专业技术人员在与用户接触过程中，总结出来的，具有一定的经验分享价值，希望给广大读者带来帮助。

1、下

主要给大家带来linux系统应该如何安装mysql5.7.21版本数据库，所讲到的知识，与书籍略有不同，都是亿速云专业技术人员在与用户接触过程中，总结出来的，具有一定的经验分享价值，希望给广大读者带来帮助。

1、下载数据库版本

mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz

2、解压

tar -zxvf mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz

mv mysql-5.7.21-linux-glibc2.12-x86_64 mysql

3、初始化数据库

5.7与以前的版本初始化有所不同

mkdir /ghca/mysql/data

mkdir /ghca/mysql/log

安装numactl yum install numactl

./mysqld --initialize --user=mysql --basedir=/ghca/mysql/ --datadir=/ghca/mysql/data

2018-03-29T06:44:18.994928Z 0 [Warning] [MY-011070] Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it is deprecated and will be removed in a future release.

2018-03-29T06:44:18.995070Z 0 [System] [MY-010116] /ghca/mysql/bin/mysqld (mysqld 8.0.4-rc) starting as process 23100 ...

2018-03-29T06:44:23.952948Z 0 [Warning] [MY-010068] CA certificate ca.pem is self signed.

2018-03-29T06:44:24.389231Z 5 [Note] [MY-010454] A temporary password is generated for root@localhost: Y%7923Moc7dd 这是root密码

复制mysql.server到/etc/init.d/

cp support-files/mysql.server /etc/init.d/mysql

修改配置文件

cat my.cnf

[client]

port = 3306

socket =/ghca/mysql/mysql.sock

[mysqld]

port = 3306

user = mysql

character-set-server = utf8

#default_storage_engine = innodb

log_timestamps = SYSTEM

socket =/ghca/mysql/mysql.sock

basedir =/ghca/mysql/

datadir =/ghca/mysql/data

pid-file =/ghca/mysql/data/mysql.pid

max_connections = 1000

max_connect_errors = 1000

table_open_cache = 1024

max_allowed_packet = 128M

open_files_limit = 65535

#####====================================[innodb]==============================

innodb_buffer_pool_size = 1024M

innodb_file_per_table = 1

innodb_write_io_threads = 4

innodb_read_io_threads = 4

innodb_purge_threads = 2

innodb_flush_log_at_trx_commit = 1

innodb_log_file_size = 512M

innodb_log_files_in_group = 2

innodb_log_buffer_size = 16M

innodb_max_dirty_pages_pct = 80

innodb_lock_wait_timeout = 30

innodb_data_file_path=ibdata1:1024M:autoextend

#####====================================[log]==============================

log_error =/ghca/mysql/log/mysql-error.log

slow_query_log = 1

long_query_time = 1

slow_query_log_file =/ghca/mysql/log/mysql-slow.log

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

4、添加开机自动启动

chkconfig --add mysql

chkconfig mysql on

service mysql start

5、不知道root密码操作步骤

1、停止mysql

2、./mysqld_safe --user=mysql --skip-grant-tables --skip-networking &

3、登录mysql

mysql

mysql> update mysql.user set authentication_string=password('123456') where user='root' and Host = 'localhost';

Query OK, 1 row affected, 1 warning (0.00 sec)

Rows matched: 1 Changed: 1 Warnings: 1

mysql> flush privileges;

6、数据库安装完成之后，无法启动

service mysql start

Starting MySQL. ERROR! The server quit without updating PID file (/ghca/mysql/data/mysql.pid).

修改my.cnf文件权限

chmod 775 /ghca/mysql/my.cnf

service mysql start

my_print_defaults: [Warning] World-writable config file '/ghca/mysql/my.cnf' is ignored.

Starting MySQL.my_print_defaults: [Warning] World-writable config file '/ghca/mysql/my.cnf' is ignored.

my_print_defaults: [Warning] World-writable config file '/ghca/mysql/my.cnf' is ignored.

SUCCESS!

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