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mysql mgr demo

时间：2023-01-16 10:46:23浏览次数：43  
标签：group mgr demo loose replication mysqld mysql 10.11 

docker compose 配置
services:
  db:
    container_name: mgr-db-0
    image: mysql:8.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: '123456'
    expose:
      # Opens port 3306 on the container
      - '3306'
      # Where our data will be persisted
    volumes:
      - /root/my.cnf:/etc/my.cnf
    hostname: s1
    networks:
      mgr-cc:
        ipv4_address: 10.11.0.10
    extra_hosts:
      - "s2:10.11.0.11"
      - "s3:10.11.0.12"
  db1:
    container_name: mgr-db-1
    image: mysql:8.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: '123456'
    expose:
      # Opens port 3306 on the container
      - '3306'
      # Where our data will be persisted
    volumes:
      - /root/my1.cnf:/etc/my.cnf
    hostname: s2
    networks:
      mgr-cc:
        ipv4_address: 10.11.0.11
    extra_hosts:
      - "s1:10.11.0.10"
      - "s3:10.11.0.12"
  db2:
    container_name: mgr-db-2
    image: mysql:8.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: '123456'
    expose:
      # Opens port 3306 on the container
      - '3306'
      # Where our data will be persisted
    volumes:
      - /root/my2.cnf:/etc/my.cnf
    hostname: s3
    networks:
      mgr-cc:
        ipv4_address: 10.11.0.12
    extra_hosts:
      - "s2:10.11.0.11"
      - "s1:10.11.0.10"
# Names our volume
volumes:
  my-db:
networks:
  mgr-cc:
    ipam:
      driver: default
      config:
        - subnet: "10.11.0.0/16"
#my.cnf
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M

# Remove leading # to revert to previous value for default_authentication_plugin,
# this will increase compatibility with older clients. For background, see:
# https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_default_authentication_plugin
# default-authentication-plugin=mysql_native_password
skip-host-cache
skip-name-resolve
datadir=/var/lib/mysql
socket=/var/run/mysqld/mysqld.sock
#secure-file-priv=/var/lib/mysql-files
user=mysql
server_id=1013306
pid-file=/var/run/mysqld/mysqld.pid
gtid-mode=on
enforce-gtid-consistency=true
log_slave_updates=1
relay_log_info_repository=TABLE
master_info_repository=TABLE
relay_log_recovery=on
default-time_zone ="+8:00"
disabled_storage_engines="MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"

#plugin_load_add='group_replication.so'
transaction_write_set_extraction=XXHASH64
loose-group_replication_group_name    ="a876d35e-9110-11e6-a365-842b2b5909d6"
loose-group_replication_start_on_boot    =off
loose-group_replication_local_address    ="10.11.0.10:34901"
loose-group_replication_group_seeds    ="10.11.0.10:34901,10.11.0.11:34902,10.11.0.12:34903"
loose-group_replication_bootstrap_group    =off
loose-group-replication-ip-whitelist="10.11.0.10,10.11.0.11,10.11.0.12"
loose-group_replication_single_primary_mode=FALSE
loose-group_replication_enforce_update_everywhere_checks=TRUE


[client]
socket=/var/run/mysqld/mysqld.sock

!includedir /etc/mysql/conf.d/
# my1.cnf
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M

# Remove leading # to revert to previous value for default_authentication_plugin,
# this will increase compatibility with older clients. For background, see:
# https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_default_authentication_plugin
# default-authentication-plugin=mysql_native_password
skip-host-cache
skip-name-resolve
datadir=/var/lib/mysql
socket=/var/run/mysqld/mysqld.sock
secure-file-priv=/var/lib/mysql-files
user=mysql
server_id=1023306
pid-file=/var/run/mysqld/mysqld.pid
gtid-mode=on
enforce-gtid-consistency=true
log_slave_updates=1
relay_log_info_repository=TABLE
master_info_repository=TABLE
relay_log_recovery=on
default-time_zone ="+8:00"
disabled_storage_engines="MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"

#plugin_load_add='group_replication.so'
transaction_write_set_extraction=XXHASH64
loose-group_replication_group_name    ="a876d35e-9110-11e6-a365-842b2b5909d6"
loose-group_replication_start_on_boot    =off
loose-group_replication_local_address    ="10.11.0.11:34902"
loose-group_replication_group_seeds    ="10.11.0.10:34901,10.11.0.11:34902,10.11.0.12:34903"
loose-group_replication_bootstrap_group    =off
loose-group-replication-ip-whitelist="10.11.0.10,10.11.0.11,10.11.0.12"
loose-group_replication_single_primary_mode=FALSE
loose-group_replication_enforce_update_everywhere_checks=TRUE


[client]
socket=/var/run/mysqld/mysqld.sock

!includedir /etc/mysql/conf.d/
#my2.cnf
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M

# Remove leading # to revert to previous value for default_authentication_plugin,
# this will increase compatibility with older clients. For background, see:
# https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_default_authentication_plugin
# default-authentication-plugin=mysql_native_password
skip-host-cache
skip-name-resolve
datadir=/var/lib/mysql
socket=/var/run/mysqld/mysqld.sock
secure-file-priv=/var/lib/mysql-files
user=mysql
server_id=1033306
pid-file=/var/run/mysqld/mysqld.pid
gtid-mode=on
enforce-gtid-consistency=true
log_slave_updates=1
relay_log_info_repository=TABLE
master_info_repository=TABLE
relay_log_recovery=on
default-time_zone ="+8:00"
disabled_storage_engines="MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"

#plugin_load_add='group_replication.so'
transaction_write_set_extraction=XXHASH64
loose-group_replication_group_name    ="a876d35e-9110-11e6-a365-842b2b5909d6"
loose-group_replication_start_on_boot    =off
loose-group_replication_local_address    ="10.11.0.12:34903"
loose-group_replication_group_seeds    ="10.11.0.10:34901,10.11.0.11:34902,10.11.0.12:34903"
loose-group_replication_bootstrap_group    =off
loose-group-replication-ip-whitelist="10.11.0.10,10.11.0.11,10.11.0.12"
loose-group_replication_single_primary_mode=FALSE
loose-group_replication_enforce_update_everywhere_checks=TRUE


[client]
socket=/var/run/mysqld/mysqld.sock

!includedir /etc/mysql/conf.d/

操作

1、安装组复制插件

　　INSTALL PLUGIN group_replication SONAME 'group_replication.so';

　　show plugins;

2、在db-0上创建复制用户
　　SET SQL_LOG_BIN=0;
　　CREATE USER repl@'%' IDENTIFIED WITH mysql_native_password BY 'repl';

　　GRANT REPLICATION SLAVE ON *.* TO repl@'%';

　　GRANT BACKUP_ADMIN ON *.* TO repl@'%';

　　FLUSH PRIVILEGES;

　　SET SQL_LOG_BIN=1;
      启动并引导组复制 在单主模式中我们需要默认的选择一个节点作为主节点，并且使这个节点成为引导节点。

 　 在 mysql 中运行以下的命令

　　 SET GLOBAL group_replication_bootstrap_group=ON;

　　START GROUP_REPLICATION;

　　SET GLOBAL group_replication_bootstrap_group=OFF;

3、依次在另外两个节点
　　CHANGE MASTER TO MASTER_USER='repl', MASTER_PASSWORD='repl' FOR CHANNEL 'group_replication_recovery';

　　START GROUP_REPLICATION;

 

!!!!遇到的问题

1)用户安全验证错误 方案一:使用复制用户请求服务器公钥：(原因是mysql8 密码验证增强) mysql -u repl -p123456 -hs1  --get-server-public-key    2) Plugin group_replication reported: 'This member has more executed transactions than those present in the group. Local transactions: e0c97c95-f571-11e9-933b-001b785baebb:1 > Group transactions: c2840554-f56b-11e9-8d9b-6cb3113192fc:1, 执行=> reset master;

标签：group,mgr,demo,loose,replication,mysqld,mysql,10.11
From： https://www.cnblogs.com/a-flydog/p/17054850.html

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