欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

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

程序员文章站 2022-06-24 23:01:00
因使用源码安装的mysql5.7.28多实例,在导入数据库时会出现问题,所以重新研究使用mysql_multi的方法来管理多实例,经过测试环境验证之后,在各方面使用上特别在备份还原上,...

因使用源码安装的mysql5.7.28多实例,在导入数据库时会出现问题,所以重新研究使用mysql_multi的方法来管理多实例,经过测试环境验证之后,在各方面使用上特别在备份还原上,没有报mysql5.7.28多实例的问题,踩了不少坑,这里我将我的部署过程分享下,如果在哪里出问题的,还请多多指正与指导,谢谢!!

参考文章:centos7.5安装mysql5.7.24二进制包方式部署

本从就直接从2.7章节开始安装mysql多实例,具体部署过程如下:

2.7 安装mysql多实例

2.7.1. 创建软件安装目录(部署路径请根据实际修改)

[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}

2.7.2. mysql安装包下载

[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

2.7.3. mysql参数配置

 配置my.cnf参数文件

(1)server_id=3306与server_id=3307数值请根据实际配置,注意配置的id值与局域网内其他各实例所配置的数值不可以冲突;

(2)max_connections=1000配置mysql数据库的最大连接数,根据实际需要配置,其他参数的优化根据实际需要修改或添

加;

(3)配置文件全部内容如下

[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

2.7.4. 配置mysql环境变量

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

2.7.5. testone实例初始化

 操作实例初始化

[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+<t?即为root用户的临时密码)
a temporary password is generated for root@localhost: #5+t+xyw+<t?

 生成ssl文件

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

 启动testone实例

[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)

 修改root密码

[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;

 验证 testone root用户统一密码(界面正常输出information_schema内容表示正常)

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

 修改my.cnf配置文件,将修改的统一密码,添加到配置文件中

[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

 停止testone实例

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

2.7.6. testtwo实例初始化

 操作实例初始化

[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

 启动testwo实例

[root@~]# mysqld_multi start 3307

----使用tail命令查看启动日志,有出现即表示启动成功

[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)

 修改root密码

[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;

 验证 testtwo root用户统一密码(界面正常输出information_schema内容表示正常)

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

enter password:

 停止testtwo实例

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

2.7.7. mysqld_multi多实例管理命令

 启动全部实例

[root@~]# mysqld_multi start

 停止单个实例

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

 启动单个实例

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

 查看全部实例的状态(is running)

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

 查看单个实例状态

[root@~]# mysqld_multi report 3306
reporting mysql servers
mysql server from group: mysqld3306 is running
[root@~]# mysqld_multi report 3307
reporting mysql servers
mysql server from group: mysqld3307 is running

 停止全部实例

[root@~]# mysqld_multi stop

2.7.8. 数据导入

(1)将待导入的数据库脚本(test.sql、testtwo.sql)文件(名称根据实际情况操作)上传至/data/路径下

(2)使用命令确认两实例已经处于运行状态

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

(3)进入testone的mysql数据库创建testone数据库实例、用户名及密码并导入数据

[root@~]# cd /data/
[root@~]# mysql -uroot -p -s /data/mysql/3306/mysql3306.sock
enter password: 
mysql>create database testone default character set utf8 collate utf8_bin;
mysql> grant select,insert,update,delete,create,alter,execute on testone.* to 'testone'@'%' identified by '密码';
mysql> flush privileges;
mysql> exit
[root@~]# mysql -uroot -p -s /data/mysql/3306/mysql3306.sock testone < /data/test.sql

(3)进入testtwo的mysql数据库,创建testtwo服务数据库实例、用户名与密码并导入数据

[root@~]# mysql -uroot -p -s /data/mysql/3307/mysql3307.sock
enter password:
mysql> create database testtwo default character set utf8 collate utf8_bin;
mysql> grant select,insert,update,delete,create,alter,execute on testtwo.* to 'testtwo'@'%' identified by '密码';
mysql> flush privileges;
mysql> exit
[root@~]# mysql -uroot -p -s /data/mysql/3307/mysql3307.sock testtwo < /data/testtwo.sql

2.7.9. 防火墙配置

 根据实际要求,添加开放端口

[root@~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent
[root@~]# firewall-cmd --zone=public --add-port=3307/tcp --permanent

 重新载入

[root@~]# firewall-cmd --reload

总结

以上所述是小编给大家介绍的centos7.5使用mysql_multi方式安装mysql5.7.28多实例,希望对大家有所帮助