linux系统安装mysql5.7.21版本数据库

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無言地对白 2018-04-27 09:48:34 博主文章分类：MYSQL ©著作权

文章标签 MYSQL 安装 文章分类 MySQL 数据库

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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!