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
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
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
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
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
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
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
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
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
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
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
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
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)