systemctl stop firewalld.service #中止firewall systemctl disable firewalld.service #禁止firewall开机启动 firewall-cmd --state #查看默认防火墙状态(关闭后显示notrunning,开启后显示running)
rpm -qa |grep mysql yum remove mysql*
rpm -qa |grep mariadb yum remove mariadb*
groupadd mysql useradd -d /home/mysql -g mysql -m mysql passwd mysql mysql vi ~/.bash_profile # .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/.local/bin:$HOME/bin:/u01/MySQL5.7/bin export PATH [mysql@localhost ~]$ source .bash_profile
mkdir -p /u01/MySQL5.7 mkdir -p /MySQL/my3306/data mkdir -p /MySQL/my3306/log/iblog mkdir -p /MySQL/my3306/log/binlog mkdir -p /MySQL/my3306/run mkdir -p /MySQL/my3306/tmp chown -R mysql:mysql /MySQL/my3306 chown -R mysql:mysql /u01/MySQL5.7 ##chown -R 755 /MySQL/my3307
[root@localhost ~]# cd /u01/MySQL5.7 [root@localhost MySQL5.7]# ll total 0 [root@localhost MySQL5.7]# ll total 696028 -rw-r--r--. 1 mysql mysql 712729170 May 14 01:42 mysql-5.7.22-el7-x86_64.tar.gz
[mysql@localhost MySQL5.7]# tar -xzvf mysql-5.7.22-el7-x86_64.tar.gz [mysql@localhost MySQL5.7]# mv /u01/MySQL5.7/mysql-5.7.22-el7-x86_64/* /u01/MySQL5.7/
[mysql@localhost ~]$ mysqld --initialize --user=mysql --basedir=/u01/MySQL5.7 --datadir=/MySQL/my3306/data --explicit_defaults_for_timestamp 2018-05-14T05:52:52.741612Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000) 2018-05-14T05:52:52.742026Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000) 2018-05-14T05:52:53.946033Z 0 [Warning] InnoDB: New log files created, LSN=45790 2018-05-14T05:52:54.104581Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2018-05-14T05:52:54.201291Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 0b79b507-573b-11e8-89dd-000c29a1762c. 2018-05-14T05:52:54.203218Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2018-05-14T05:52:54.210927Z 1 [Note] A temporary password is generated for root@localhost: ;c_tca9sR;s5
由上可知,初始化的root 密码为;c_tca9sR;s5mysql
vi /MySQL/my3306/my.cnf [mysqld] #sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES basedir=/u01/MySQL5.7 #介质目录 datadir=/MySQL/my3306/data #数据目录 port=3306 #端口 pid-file = /MySQL/my3306/data/mysql.pid #进程id user = mysql #启动用户 socket=/MySQL/my3306/run/mysql.sock #sock文件地址 bind-address = 0.0.0.0 #绑定ip 这里表示绑定全部ip server-id = 1 #用于复制环境钟标识实例,这个在复制环境里惟一 character-set-server = utf8 #服务端默认字符集,很重要,错误设置会出现乱码 max_connections = 1000 #容许客户端并发链接的最大数量 max_connect_errors = 6000 #若是客户端尝试链接的错误数量超过这个参数设置的值,则服务器再也不接受新的客户端链接。 open_files_limit = 65535 #操做系统容许MySQL服务打开的文件数量。 table_open_cache = 128 #全部线程能打开的表的数量 max_allowed_packet = 4M #网络传输时单个数据包的大小。 binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_type = 1 query_cache_size = 8M query_cache_limit = 2M ft_min_word_len = 4 log_bin = mysql-bin binlog_format = mixed expire_logs_days = 30 log_error = /MySQL/my3306/data/mysql-error.log slow_query_log = 1 long_query_time = 1 slow_query_log_file = /MySQL/my3306/data/mysql-slow.log performance_schema = 0 explicit_defaults_for_timestamp #lower_case_table_names = 1 skip-external-locking default_storage_engine = InnoDB #default-storage-engine = MyISAM innodb_file_per_table = 1 innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 0 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 10G myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 #lower_case_table_names = 1 skip-external-locking default_storage_engine = InnoDB #default-storage-engine = MyISAM innodb_file_per_table = 1 innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 0 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 10G myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 [client] port=3306 socket=/MySQL/my3306/run/mysql.sock [mysql] socket=/MySQL/my3306/run/mysql.sock
cp /MySQL/my3306/my.cnf /etc/my.cnf cp /u01/MySQL5.7/support-files/mysql.server /etc/init.d/mysqld
#添加一下两项 basedir=/u01/MySQL5.7 datadir=/MySQL/my3306/data
[mysql@localhost ~]$ service mysqld start Starting MySQL.. SUCCESS!
[mysql@localhost ~]$ mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.22-log Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> mysql> mysql> show databases; ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. mysql> set PASSWORD=PASSWORD('root'); Query OK, 0 rows affected, 1 warning (0.03 sec) mysql> flush privileges;
[root@localhost ~]# chkconfig mysqld on [root@localhost ~]# chkconfig Note: This output shows SysV services only and does not include native systemd services. SysV configuration data might be overridden by native systemd configuration. If you want to list systemd services use 'systemctl list-unit-files'. To see services enabled on particular target use 'systemctl list-dependencies [target]'. mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off netconsole 0:off 1:off 2:off 3:off 4:off 5:off 6:off network 0:off 1:off 2:on 3:on 4:on 5:on 6:off