CentOS7.5使用mysql_multi方式安装MySQL5.7.28多实例(详解)_Redis_

 [root@~]# mkdir -pv /data/mysql/{3306,3307} [root@~]# mkdir -v /data/mysql/3306/{logs,data,binlog} [root@~]# mkdir -v /data/mysql/3307/{logs,data,binlog}

 [root@~]# cd /opt [root@~]# wget -c https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz [root@~]# tar zxvf mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz [root@~]# mv mysql-5.7.28-linux-glibc2.12-x86_64 /usr/local/mysql [root@~]# chown -R mysql:mysql /usr/local/mysql [root@~]# chown -R mysql:mysql /data

 [root@~]# vim /etc/my.cnf [mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld mysqladmin = /usr/local/mysql/bin/mysqladmin log = /data/mysql/mysqld_multi.log #user=root #pass= [mysql] prompt="\u@jsshapp \R:\m:\s [\d]> " no-auto-rehash [mysqld3306] user = mysql port = 3306 symbolic-links = 0 #basedir = /usr/ datadir = /data/mysql/3306/data socket = /data/mysql/3306/mysql3306.sock pid-file = /data/mysql/3306/mysqld3306.pid server_id = 3306 character_set_server = utf8 max_connections = 1000 skip_name_resolve = 1 open_files_limit = 65536 thread_cache_size = 64 table_open_cache = 4096 table_definition_cache = 1024 table_open_cache_instances = 64 max_prepared_stmt_count = 1048576 explicit_defaults_for_timestamp = true log_timestamps = system binlog_format = row log_bin = /data/mysql/3306/binlog/mysql-bin binlog_rows_query_log_events = on expire_logs_days = 7 binlog_cache_size = 4M max_binlog_cache_size = 2G max_binlog_size = 1G sync_binlog = 1 log_bin_trust_function_creators = 1 slow_query_log = on slow_query_log_file = /data/mysql/3306/data/slow.log log-error = /data/mysql/3306/logs/error.log log_queries_not_using_indexes = on long_query_time = 1.000000 gtid_mode = on enforce_gtid_consistency = on default_storage_engine = innodb default_tmp_storage_engine = innodb innodb_data_file_path = ibdata1:12M:autoextend:max:2000M innodb_temp_data_file_path = ibtmp1:12M:autoextend:max:2000M innodb_buffer_pool_filename = ib_buffer_pool innodb_log_files_in_group = 3 innodb_log_file_size = 512M innodb_online_alter_log_max_size = 1024M innodb_open_files = 4096 innodb_page_size = 16k innodb_thread_concurrency = 0 innodb_read_io_threads = 4 innodb_write_io_threads = 4 innodb_purge_threads = 4 innodb_page_cleaners = 4 innodb_print_all_deadlocks = on innodb_lock_wait_timeout = 20 innodb_spin_wait_delay = 128 innodb_autoinc_lock_mode = 2 innodb_io_capacity = 200 innodb_io_capacity_max = 2000 #innodb_flush_neighbors = innodb_log_buffer_size = 8M innodb_flush_log_at_timeout = 1 innodb_flush_log_at_trx_commit = 2 innodb_buffer_pool_size = 1024M innodb_buffer_pool_instances = 4 autocommit = 1 innodb_buffer_pool_dump_pct = 25 innodb_buffer_pool_dump_at_shutdown = ON innodb_buffer_pool_load_at_startup = ON [mysqld3307] user = mysql port = 3307 symbolic-links = 0 lower_case_table_names = 1 #basedir = /usr/ datadir = /data/mysql/3307/data socket = /data/mysql/3307/mysql3307.sock pid-file = /data/mysql/3307/mysqld3307.pid server_id = 3307 character_set_server = utf8 max_connections = 1000 skip_name_resolve = 1 open_files_limit = 65536 thread_cache_size = 64 table_open_cache = 4096 table_definition_cache = 1024 table_open_cache_instances = 64 max_prepared_stmt_count = 1048576 explicit_defaults_for_timestamp = true log_timestamps = system binlog_format = row log_bin = /data/mysql/3307/binlog/mysql-bin binlog_rows_query_log_events = on expire_logs_days = 7 binlog_cache_size = 4M max_binlog_cache_size = 2G max_binlog_size = 1G sync_binlog = 1 slow_query_log = on slow_query_log_file = /data/mysql/3307/data/slow.log log-error = /data/mysql/3307/logs/error.log log_queries_not_using_indexes = on long_query_time = 1.000000 gtid_mode = on enforce_gtid_consistency = on default_storage_engine = innodb default_tmp_storage_engine = innodb innodb_data_file_path = ibdata1:12M:autoextend:max:2000M innodb_temp_data_file_path = ibtmp1:12M:autoextend:max:2000M innodb_buffer_pool_filename = ib_buffer_pool innodb_log_files_in_group = 3 innodb_log_file_size = 512M innodb_online_alter_log_max_size = 1024M innodb_open_files = 4096 innodb_page_size = 16k innodb_thread_concurrency = 0 innodb_read_io_threads = 4 innodb_write_io_threads = 4 innodb_purge_threads = 4 innodb_page_cleaners = 4 innodb_print_all_deadlocks = on innodb_lock_wait_timeout = 20 innodb_spin_wait_delay = 128 innodb_autoinc_lock_mode = 2 innodb_io_capacity = 200 innodb_io_capacity_max = 2000 #innodb_flush_neighbors = innodb_log_buffer_size = 8M innodb_flush_log_at_timeout = 1 innodb_flush_log_at_trx_commit = 2 innodb_buffer_pool_size = 1024M innodb_buffer_pool_instances = 4 autocommit = 1 innodb_buffer_pool_dump_pct = 25 innodb_buffer_pool_dump_at_shutdown = ON innodb_buffer_pool_load_at_startup = ON [mysqldump] quick max_allowed_packet = 32M

 [root@~]# echo 'export PATH=/usr/local/mysql/bin:$PATH' >> /etc/profile [root@~]# tail -1 /etc/profile [root@~]# source /etc/profile

 [root@~]# mysqld --defaults-file=/etc/my.cnf --initialize --basedir=/usr/local/mysql/ --user=mysql --datadir=/data/mysql/3306/data/ > /tmp/3306.log 2>&1 [root@~]# tail -100f /tmp/3306.log ---使用tail命令查看初始化日志，有出现如下内容，即表示初始化完成（其中#5+t+xYW+

 [root@~]# mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/3306/data

 [root@~]# mysqld_multi start 3306 [root@~]# tail -100f /data/mysql/3306/logs/error.log ----使用tail命令查看启动日志，有出现即表示启动成功 Version: '5.7.28-log' socket: '/data/mysql/3306/mysql3306.sock' port: 3306 MySQL Community Server (GPL) 

 [root@~]# less /tmp/3306.log | grep 'A temporary password' [root@~]# mysql -uroot -p -S /data/mysql/3306/mysql3306.sock Enter password: mysql> alter user 'root'@'localhost' identified by '统一密码'; mysql> flush privileges; mysql> exit;

 [root@~]# mysql -uroot -p -S /data/mysql/3306/mysql3306.sock -e "show databases;" | grep information_schema Enter password:

 [root@~]# sed -i "s@^#user=root@user=root@g" /etc/my.cnf [root@~]# sed -i "s@^#pass=@pass=统一密码@g" /etc/my.cnf [root@~]# cat /etc/my.cnf | grep pass= ---使用cat命令查看配置文件pass字段输出的结果是否一致

 [root@~]# mysqld_multi stop 3306 [root@~]# netstat -tnlp|grep 3306 ---输入结果为空表示服务停止正常

 [root@~]# mysqld --defaults-file=/etc/my.cnf --initialize --basedir=/usr/local/mysql/ --user=mysql --datadir=/data/mysql/3307/data/ > /tmp/3307.log 2>&1 [root@~]# tail -100f /tmp/3307.log ---使用tail命令查看初始化日志，有出现如下内容，即表示初始化完成（其中-pn>t;Ye)Ay6=I即为root用户的临时密码） A temporary password is generated for root@localhost: -pn>t;Ye)Ay6=I  生成ssl文件 [root@~]# mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/3307/data

 [root@~]# mysqld_multi start 3307

 [root@~]# tail -100f /data/mysql/3307/logs/error.log Version: '5.7.28-log' socket: '/data/mysql/3307/mysql3307.sock' port: 3307 MySQL Community Server (GPL) 

 [root@~]# less /tmp/3307.log|grep 'A temporary password' [root@~]# mysql -uroot -p -S /data/mysql/3307/mysql3307.sock Enter password: mysql> alter user 'root'@'localhost' identified by '统一密码'; mysql> flush privileges; mysql> exit;

 [root@~]# mysql -uroot -p -S /data/mysql/3307/mysql3307.sock -e "show databases;" | grep information_schema

 [root@~]# mysqld_multi stop 3307 [root@~]# netstat -tnlp|grep 3307 ---输入结果为空表示服务停止正常

 [root@~]# mysqld_multi stop 3306 [root@~]# mysqld_multi stop 3307

 [root@~]# mysqld_multi start 3306 [root@~]# mysqld_multi start 3307

 [root@~]# mysqld_multi report Reporting MySQL servers MySQL server from group: mysqld3306 is running MySQL server from group: mysqld3307 is running