ubuntu24实现单节点mysql mgr配置

warton882026-01-27 10:51

背景

本地主机性能不足开启虚拟机后总是容易卡死，将mgr集群迁移到本地服务器上，在本地服务器上实现单节点mgr集群，用来测试项目。

先安装mysql实例

具体安装参考文章：https://blog.csdn.net/warton88/article/details/156641727?spm=1001.2014.3001.5502

创建必要目录

复制代码 
root@mzi:/www/tools/mysql-8.0.36# cd /www
root@mzi:/www# mkdir -p /www/mysql-mgr/{mysql-master,mysql-slave1,mysql-slave2}/{conf,data,logs,tmp,binlogs}

root@mzi:/www# chmod 755 /www
root@mzi:/www# chown -R mysql:mysql /www/mysql-mgr

初始化数据目录

复制代码 
root@mzi:/www# service mysql stop

# 更新 AppArmor 配置‌（关键步骤）
root@mzi:/www# vim /etc/apparmor.d/usr.sbin.mysqld

# 添加如下内容
/www/mysql-mgr/ r,
/www/mysql-mgr/** rwk,
/www/mysql-mgr/{mysql-master,mysql-slave1,mysql-slave2}/data/ r,
/www/mysql/{mysql-master,mysql-slave1,mysql-slave2}/data/** rwk,
/www/mysql/{mysql-master,mysql-slave1,mysql-slave2}/logs/ rw,
/www/mysql/{mysql-master,mysql-slave1,mysql-slave2}/tmp/ rw,

root@mzi:/www# systemctl reload apparmor

root@mzi:/www# sudo -u mysql mysqld --initialize-insecure --datadir=/www/mysql-mgr/mysql-master/data
root@mzi:/www# sudo -u mysql mysqld --initialize-insecure --datadir=/www/mysql-mgr/mysql-slave1/data
root@mzi:/www# sudo -u mysql mysqld --initialize-insecure --datadir=/www/mysql-mgr/mysql-slave2/data

配置三个节点的cnf

配置master节点

复制代码 
root@mzi:/www# vim /www/mysql-mgr/mysql-master/conf/master.cnf

[mysqld]
datadir = /www/mysql-mgr/mysql-master/data
socket = /www/mysql-mgr/mysql-master/mysql.sock
log-error = /www/mysql-mgr/mysql-master/logs/error.log
pid-file = /www/mysql-mgr/mysql-master/mysql.pid
tmpdir = /www/mysql-mgr/mysql-master/tmp
port = 3306

# ========================
# 内存优化配置 (48核64G专属)
# ========================
# 缓冲池 master占50%，剩余从占25%， 总数占用不超过48G
innodb_buffer_pool_size  = 24G
innodb_buffer_pool_instances = 16  # 匹配CPU核心数

# 连接与线程优化
max_connections          = 1000     # 避免内存耗尽
thread_cache_size        = 16
table_open_cache         = 2048
table_definition_cache   = 512

# InnoDB引擎优化
innodb_log_file_size     = 4G
innodb_log_buffer_size   = 2G
innodb_flush_log_at_trx_commit = 1
innodb_flush_method      = O_DIRECT
innodb_file_per_table    = 1
innodb_thread_concurrency= 0      # 自动优化

# 临时表与排序优化
tmp_table_size           = 128M
max_heap_table_size      = 128M
sort_buffer_size         = 128M
join_buffer_size         = 128M
read_buffer_size         = 128M
read_rnd_buffer_size     = 128M

# ========================
# 安全与维护配置
# ========================
skip_name_resolve        = ON
log_slow_extra           = ON
long_query_time          = 2
log_queries_not_using_indexes = OFF
max_allowed_packet       = 128M
transaction_isolation    = READ-COMMITTED

# ========================
# MGR 集群核心配置
# ========================
server_id = 1  
gtid_mode = ON
enforce_gtid_consistency = ON
binlog_checksum = NONE
log_slave_updates = ON
binlog_format = ROW
transaction_write_set_extraction = XXHASH64

# MGR专用配置
loose-group_replication_group_name = "161ec121-861b-4f61-b6ed-c969087cc1be" 
loose-group_replication_start_on_boot = OFF
loose-group_replication_recovery_get_public_key = ON
loose-group_replication_recovery_use_ssl = ON
loose-group_replication_local_address = "127.0.0.1:33061" 
loose-group_replication_group_seeds = "127.0.0.1:33061,127.0.0.1:33062,127.0.0.1:33063"
loose-group_replication_bootstrap_group = OFF

[mysql]
socket=/www/mysql-mgr/mysql-master/mysql.sock

[client]
socket=/www/mysql-mgr/mysql-master/mysql.sock

配置slave1节点

复制代码 
root@mzi:/www# vim /www/mysql-mgr/mysql-slave1/conf/slave1.cnf

[mysqld]
datadir = /www/mysql-mgr/mysql-slave1/data
socket = /www/mysql-mgr/mysql-slave1/mysql.sock
log-error = /www/mysql-mgr/mysql-slave1/logs/error.log
pid-file = /www/mysql-mgr/mysql-slave1/mysql.pid
tmpdir = /www/mysql-mgr/mysql-slave1/tmp
port = 3307

# ========================
# 内存优化配置 (48核64G专属)
# ========================
# 缓冲池 master占50%，剩余从占25%， 总数占用不超过48G
innodb_buffer_pool_size  = 12G
innodb_buffer_pool_instances = 12  # 匹配CPU核心数

# 连接与线程优化
max_connections          = 1000     # 避免内存耗尽
thread_cache_size        = 16
table_open_cache         = 2048
table_definition_cache   = 512

# InnoDB引擎优化
innodb_log_file_size     = 4G
innodb_log_buffer_size   = 2G
innodb_flush_log_at_trx_commit = 1
innodb_flush_method      = O_DIRECT
innodb_file_per_table    = 1
innodb_thread_concurrency= 0      # 自动优化

# 临时表与排序优化
tmp_table_size           = 128M
max_heap_table_size      = 128M
sort_buffer_size         = 128M
join_buffer_size         = 128M
read_buffer_size         = 128M
read_rnd_buffer_size     = 128M

# ========================
# 安全与维护配置
# ========================
skip_name_resolve        = ON
log_slow_extra           = ON
long_query_time          = 2
log_queries_not_using_indexes = OFF
max_allowed_packet       = 128M
transaction_isolation    = READ-COMMITTED

# ========================
# MGR 集群核心配置
# ========================
server_id = 2
gtid_mode = ON
enforce_gtid_consistency = ON
binlog_checksum = NONE
log_slave_updates = ON
binlog_format = ROW
transaction_write_set_extraction = XXHASH64

# MGR专用配置
loose-group_replication_group_name = "161ec121-861b-4f61-b6ed-c969087cc1be" 
loose-group_replication_start_on_boot = OFF
loose-group_replication_recovery_get_public_key = ON
loose-group_replication_recovery_use_ssl = ON
loose-group_replication_local_address = "127.0.0.1:33062" 
loose-group_replication_group_seeds = "127.0.0.1:33061,127.0.0.1:33062,127.0.0.1:33063"
loose-group_replication_bootstrap_group = OFF

[mysql]
socket=/www/mysql-mgr/mysql-slave1/mysql.sock

[client]
socket=/www/mysql-mgr/mysql-slave1/mysql.sock

配置slave2节点

复制代码 
root@mzi:/www# vim /www/mysql-mgr/mysql-slave2/conf/slave2.cnf

[mysqld]
datadir = /www/mysql-mgr/mysql-slave2/data
socket = /www/mysql-mgr/mysql-slave2/mysql.sock
log-error = /www/mysql-mgr/mysql-slave2/logs/error.log
pid-file = /www/mysql-mgr/mysql-slave2/mysql.pid
tmpdir = /www/mysql-mgr/mysql-slave2/tmp
port = 3308

# ========================
# 内存优化配置 (48核64G专属)
# ========================
# 缓冲池 master占50%，剩余从占25%， 总数占用不超过48G
innodb_buffer_pool_size  = 12G
innodb_buffer_pool_instances = 12  # 匹配CPU核心数

# 连接与线程优化
max_connections          = 1000     # 避免内存耗尽
thread_cache_size        = 16
table_open_cache         = 2048
table_definition_cache   = 512

# InnoDB引擎优化
innodb_log_file_size     = 4G
innodb_log_buffer_size   = 2G
innodb_flush_log_at_trx_commit = 1
innodb_flush_method      = O_DIRECT
innodb_file_per_table    = 1
innodb_thread_concurrency= 0      # 自动优化

# 临时表与排序优化
tmp_table_size           = 128M
max_heap_table_size      = 128M
sort_buffer_size         = 128M
join_buffer_size         = 128M
read_buffer_size         = 128M
read_rnd_buffer_size     = 128M

# ========================
# 安全与维护配置
# ========================
skip_name_resolve        = ON
log_slow_extra           = ON
long_query_time          = 2
log_queries_not_using_indexes = OFF
max_allowed_packet       = 128M
transaction_isolation    = READ-COMMITTED

# ========================
# MGR 集群核心配置
# ========================
server_id = 2
gtid_mode = ON
enforce_gtid_consistency = ON
binlog_checksum = NONE
log_slave_updates = ON
binlog_format = ROW
transaction_write_set_extraction = XXHASH64

# MGR专用配置
loose-group_replication_group_name = "161ec121-861b-4f61-b6ed-c969087cc1be" 
loose-group_replication_start_on_boot = OFF
loose-group_replication_recovery_get_public_key = ON
loose-group_replication_recovery_use_ssl = ON
loose-group_replication_local_address = "127.0.0.1:33063" 
loose-group_replication_group_seeds = "127.0.0.1:33061,127.0.0.1:33062,127.0.0.1:33063"
loose-group_replication_bootstrap_group = OFF

[mysql]
socket=/www/mysql-mgr/mysql-slave2/mysql.sock

[client]
socket=/www/mysql-mgr/mysql-slave2/mysql.sock

分别启动三个节点

复制代码 
root@mzi:/www# sudo -u mysql  mysqld --defaults-file=/www/mysql-mgr/mysql-master/conf/master.cnf &
[1] 81314

root@mzi:/www# sudo -u mysql  mysqld --defaults-file=/www/mysql-mgr/mysql-slave1/conf/slave1.cnf &
[2] 81918

root@mzi:/www# sudo -u mysql  mysqld --defaults-file=/www/mysql-mgr/mysql-slave2/conf/slave2.cnf &
[3] 82116


#验证
root@mzi:~# ps -ef | grep mysql
root       81314       1  0 11:29 ?        00:00:00 sudo -u mysql mysqld --defaults-file=/www/mysql-mgr/mysql-master/conf/master.cnf
root       81325   81314  0 11:29 pts/1    00:00:00 sudo -u mysql mysqld --defaults-file=/www/mysql-mgr/mysql-master/conf/master.cnf
mysql      81326   81325  5 11:29 pts/1    00:00:08 mysqld --defaults-file=/www/mysql-mgr/mysql-master/conf/master.cnf
root       81918       1  0 11:30 ?        00:00:00 sudo -u mysql mysqld --defaults-file=/www/mysql-mgr/mysql-slave1/conf/slave1.cnf
root       81929   81918  0 11:30 pts/4    00:00:00 sudo -u mysql mysqld --defaults-file=/www/mysql-mgr/mysql-slave1/conf/slave1.cnf
mysql      81930   81929  6 11:30 pts/4    00:00:04 mysqld --defaults-file=/www/mysql-mgr/mysql-slave1/conf/slave1.cnf
root       82116       1  0 11:31 ?        00:00:00 sudo -u mysql mysqld --defaults-file=/www/mysql-mgr/mysql-slave2/conf/slave2.cnf
root       82127   82116  0 11:31 pts/5    00:00:00 sudo -u mysql mysqld --defaults-file=/www/mysql-mgr/mysql-slave2/conf/slave2.cnf
mysql      82128   82127 21 11:31 pts/5    00:00:04 mysqld --defaults-file=/www/mysql-mgr/mysql-slave2/conf/slave2.cnf
root       82637   82371  0 11:31 pts/6    00:00:00 grep --color=auto mysql

配置三个节点的账号密码

配置master节点

复制代码 
root@mzi:~# mysql -u root --socket=/www/mysql-mgr/mysql-master/mysql.sock
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 65
Server version: 8.0.36 MySQL Community Server - GPL

Copyright (c) 2000, 2024, Oracle and/or its affiliates.

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> CREATE USER 'rpl_user'@'%' IDENTIFIED BY '@Password1122!';
Query OK, 0 rows affected (0.14 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'rpl_user'@'%';
Query OK, 0 rows affected (0.02 sec)

mysql> create user 'warton'@'%' identified by '@Password1122!';
Query OK, 0 rows affected (0.12 sec)

mysql> grant all privileges on *.* to 'warton'@'%';
Query OK, 0 rows affected (0.01 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.02 sec)

mysql> RESET MASTER;
Query OK, 0 rows affected (0.22 sec)

mysql> INSTALL PLUGIN group_replication SONAME 'group_replication.so';
Query OK, 0 rows affected (0.04 sec)

配置slave1

复制代码 
root@mzi:~# mysql -uroot --socket=/www/mysql-mgr/mysql-slave1/mysql.sock 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.36 MySQL Community Server - GPL

Copyright (c) 2000, 2024, Oracle and/or its affiliates.

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> CREATE USER 'rpl_user'@'%' IDENTIFIED BY '@Password1122!';
Query OK, 0 rows affected (0.06 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'rpl_user'@'%';
Query OK, 0 rows affected (0.04 sec)

mysql> create user 'warton'@'%' identified by '@Password1122!';
Query OK, 0 rows affected (0.04 sec)

mysql> grant all privileges on *.* to 'warton'@'%';
Query OK, 0 rows affected (0.05 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.02 sec)

mysql> RESET MASTER;
Query OK, 0 rows affected (0.10 sec)

mysql> INSTALL PLUGIN group_replication SONAME 'group_replication.so';
Query OK, 0 rows affected (0.12 sec)

配置slave2

复制代码 
root@mzi:~# mysql -uroot --socket=/www/mysql-mgr/mysql-slave2/mysql.sock 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.36 MySQL Community Server - GPL

Copyright (c) 2000, 2024, Oracle and/or its affiliates.

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> CREATE USER 'rpl_user'@'%' IDENTIFIED BY '@Password1122!';
Query OK, 0 rows affected (0.06 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'rpl_user'@'%';
Query OK, 0 rows affected (0.04 sec)

mysql> create user 'warton'@'%' identified by '@Password1122!';
Query OK, 0 rows affected (0.04 sec)

mysql> grant all privileges on *.* to 'warton'@'%';
Query OK, 0 rows affected (0.05 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.02 sec)

mysql> RESET MASTER;
Query OK, 0 rows affected (0.10 sec)

mysql> INSTALL PLUGIN group_replication SONAME 'group_replication.so';
Query OK, 0 rows affected (0.12 sec)

开始组内复制

master节点执行

复制代码 
mysql> SET GLOBAL group_replication_bootstrap_group=ON;
Query OK, 0 rows affected (0.00 sec)

mysql> START GROUP_REPLICATION;
Query OK, 0 rows affected (1.69 sec)

mysql> SET GLOBAL group_replication_bootstrap_group=OFF;
Query OK, 0 rows affected (0.00 sec)

slave节点执行

复制代码 
mysql> CHANGE MASTER TO MASTER_USER="rpl_user", MASTER_PASSWORD="@Password1122!" FOR CHANNEL 'group_replication_recovery';
Query OK, 0 rows affected, 5 warnings (0.45 sec)

mysql> start group_replication;
Query OK, 0 rows affected (2.16 sec)

验证

复制代码 
mysql> select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION | MEMBER_COMMUNICATION_STACK |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| group_replication_applier | 93c11147-fa62-11f0-ad6e-e8611f1437f2 | mzi         |        3306 | ONLINE       | PRIMARY     | 8.0.36         | XCom                       |
| group_replication_applier | a6631346-fa62-11f0-b426-e8611f1437f2 | mzi         |        3307 | ONLINE       | SECONDARY   | 8.0.36         | XCom                       |
| group_replication_applier | ba0cec62-fa62-11f0-87ee-e8611f1437f2 | mzi         |        3308 | ONLINE       | SECONDARY   | 8.0.36         | XCom                       |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
3 rows in set (0.01 sec)
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