MySQL8.0.13组复制的安装步骤

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环境描述:

主机:

192.168.0.51 alpha-mysql-0-51 主节点

192.168.0.52 alpha-mysql-0-52 从节点

192.168.16.15 zhsq-mysql16-15 从节点

操作系统版本:CentOS release 6.8

开始在主节点上安装组复制:

第一个主节点(192.168.0.51)上的配置文件内容:

[root@alpha-mysql-0-51 ~]#cat /etc/my.cnf

[mysqld]

sql_mode = NO_ENGINE_SUBSTITUTION

server_id=14051

port=3306

user=mysql

character_set_server=utf8mb4

skip_name_resolve

max_connections=100

basedir=/usr/local/mysql-8.0.13

datadir=/home/mysql/data

socket=/tmp/mysql.sock

pid-file=/home/mysql/mysqld.pid

#transaction_isolation=read-committed

default_storage_engine=innodb

max_allowed_packet=128M

max_heap_table_size=64M

tmp_table_size=64M

read_buffer_size=2M

sort_buffer_size=2M

read_rnd_buffer_size=4M

open_files_limit=81920

table_open_cache=10000

table_definition_cache=10000

secure-file-priv = NULL

#secure_file_priv=''

wait_timeout=86400

default_authentication_plugin=mysql_native_password

log_error=/home/mysql/log/mysqld.err

log_timestamps=system

slow_query_log=1

slow_query_log_file=/home/mysql/slow_query.log

long_query_time=3

log_bin=/home/mysql/data/mysql-bin

binlog_format=row

binlog_row_image=minimal

binlog_rows_query_log_events

binlog_error_action=ABORT_SERVER

#expire_logs_days=1 --disabled from mysql8.0

binlog_expire_logs_seconds=86400

slave_parallel_type=LOGICAL_CLOCK

slave_parallel_workers=8

master_info_repository=TABLE

relay_log_info_repository=TABLE

relay_log=/home/mysql/data/relay-log

relay_log_recovery=ON

log_slave_updates

skip_slave_start

innodb_open_files=8000

innodb_buffer_pool_size=4G

innodb_max_dirty_pages_pct=90

innodb_buffer_pool_instances=8

innodb_buffer_pool_dump_at_shutdown=ON

innodb_lock_wait_timeout=120

innodb_io_capacity=1000

innodb_io_capacity_max=2000

innodb_flush_method=O_DIRECT

innodb_file_per_table=1

innodb_flush_log_at_trx_commit=0

innodb_log_file_size=100M

innodb_log_buffer_size=10M

innodb_log_files_in_group=3

innodb_purge_threads=4

innodb_thread_concurrency=0

innodb_print_all_deadlocks=ON

innodb_deadlock_detect=ON

innodb_strict_mode=ON

innodb_sort_buffer_size=64M

innodb_read_io_threads=6

innodb_write_io_threads=6

gtid_mode=ON

enforce_gtid_consistency=ON

binlog_checksum=NONE

transaction_write_set_extraction=XXHASH64

loose-group_replication_group_name="aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa"

loose-group_replication_start_on_boot=off

loose-group_replication_local_address= "192.168.0.51:24901"

loose-group_replication_group_seeds= "10.186.0.51:24901,192.168.0.52:24902,192.168.16.15:24903"

loose-group_replication_bootstrap_group= off

[mysql]

socket=/tmp/mysql.sock

default-character-set = utf8mb4

prompt="\\u@\\h :\\d\\r:\\m:\\s>"

[mysqldump]

socket=/tmp/mysql.sock

[mysqladmin]

socket=/tmp/mysql.sock

备注：

loose-group_replication_start_on_boot=off 这句的意思是在mysqld启动时不自动启动组复制，如果想自动启动，可以改成on

初始化mysql服务:

# mysqld --initialize-insecure --user=mysql

启动第一个节点上的mysql8.0:

# mysqld_safe --user=mysql &

[2] 27593

[root@alpha-mongo-140-51 /home/mysql]#2018-11-07T06:17:06.255849Z mysqld_safe Logging to '/home/mysql/log/mysqld.err'.

2018-11-07T06:17:06.323053Z mysqld_safe Starting mysqld daemon with databases from /home/mysql/data

创建复制用户并安装组复制插件:

mysql>set sql_log_bin=0;

Query OK, 0 rows affected (0.01 sec)

mysql>CREATE USER repl@'%' identified by '123456';

Query OK, 0 rows affected (0.00 sec)

备注：设置sql_log_bin=0这个步骤很重要，创建用户操作不能记录到binlog文件中，否则会报错:

[ERROR] [MY-011522] [Repl] Plugin group_replication reported: 'The member contains transactions not present in the group. The member will now exit the group.'

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

Query OK, 0 rows affected (0.00 sec)

mysql>set sql_log_bin=1;

Query OK, 0 rows affected (0.00 sec)

mysql>CHANGE MASTER TO MASTER_USER='repl', MASTER_PASSWORD='123456' FOR CHANNEL 'group_replication_recovery';

Query OK, 0 rows affected, 2 warnings (0.34 sec)

mysql>INSTALL PLUGIN group_replication SONAME 'group_replication.so';

Query OK, 0 rows affected (0.02 sec)

设置白名单(局域网内机器不在一个网段时候需要设置)：

mysql>set global group_replication_ip_whitelist="192.168.0.51,192.168.0.52,192.168.16.15";

Query OK, 0 rows affected (0.00 sec)

查看白名单:

mysql>show global variables like '%white%';

+--------------------------------+----------------------------------------------+

| Variable_name | Value |

+--------------------------------+----------------------------------------------+

| group_replication_ip_whitelist | 192.168.0.51,192.168.0.52,192.168.16.15 |

+--------------------------------+----------------------------------------------+

1 row in set (0.01 sec)

mysql>SELECT * FROM information_schema.plugins WHERE PLUGIN_NAME LIKE '%group%' \G

*************************** 1. row ***************************

PLUGIN_NAME: group_replication

PLUGIN_VERSION: 1.1

PLUGIN_STATUS: ACTIVE

PLUGIN_TYPE: GROUP REPLICATION

PLUGIN_TYPE_VERSION: 1.2

PLUGIN_LIBRARY: group_replication.so

PLUGIN_LIBRARY_VERSION: 1.9

PLUGIN_AUTHOR: ORACLE

PLUGIN_DESCRIPTION: Group Replication (1.1.0)

PLUGIN_LICENSE: GPL

LOAD_OPTION: ON

1 row in set (0.10 sec)

查看已安装的插件:

mysql>show plugins;

+---------------------------------+----------+--------------------+----------------------+---------+

+---------------------------------+----------+--------------------+----------------------+---------+

+---------------------------------+----------+--------------------+----------------------+---------+

45 rows in set (0.01 sec)

备注：查看最后一行，group_replication ACTIVE表明组复制插件已安装。

开启第一个节点组复制:

mysql>SET GLOBAL group_replication_bootstrap_group=ON;

Query OK, 0 rows affected (0.00 sec)

启动组复制:

mysql> START GROUP_REPLICATION;

ERROR 3092 (HY000): The server is not configured properly to be an active member of the group. Please see more details on error log.

报错了，日志里的告警信息如下：

[Warning] [MY-011682] [Repl] Plugin group_replication reported: 'Group Replication requires slave-preserve-commit-order to be set to ON when using more than 1 applier threads.'

提示需要设置参数slave-preserve-commit-order,设置此参数是为了控制Slave上的binlog提交顺序和Master上的binlog的提交顺序一样,保证GTID的顺序。

mysql>set global slave_preserve_commit_order=on;

Query OK, 0 rows affected (0.00 sec)

再次启动group replication:

root@localhost :(none)02:23:14>START GROUP_REPLICATION;

Query OK, 0 rows affected (3.47 sec)

启动成功,日志如下:

2018-11-07T14:23:22.130524+08:00 9 [Warning] [MY-011735] [Repl] Plugin group_replication reported: '[GCS] Automatically adding IPv4 localhost address to the whitelist. It is mandatory that it is added.'

2018-11-07T14:23:22.351635+08:00 259 [System] [MY-010597] [Repl] 'CHANGE MASTER TO FOR CHANNEL 'group_replication_applier' executed'. Previous state master_host='', master_port= 3306, master_log_file='', master_log_pos= 4, master_bind=''. New state master_host='', master_port= 0, master_log_file='', master_log_pos= 4, master_bind=''.

查看组复制成员:

mysql>select * from performance_schema.replication_group_members;

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

1 row in set (0.02 sec)

创建测试数据:

mysql>create database test;

Query OK, 1 row affected (0.05 sec)

mysql>use test

Database changed

mysql>create table test(id int primary key,name varchar(10));

Query OK, 0 rows affected (0.15 sec)

mysql>insert into test values(1,'lovepeihy');

Query OK, 1 row affected (0.07 sec)

第二个节点(从节点)配置文件:

[root@alpha-mysql-0-52 /]#cat /etc/my.cnf

[mysqld]

sql_mode = NO_ENGINE_SUBSTITUTION

server_id=14052

port=3306

user=mysql

character_set_server=utf8mb4

skip_name_resolve

max_connections=100

basedir=/usr/local/mysql-8.0.13

datadir=/home/mysql/data

socket=/tmp/mysql.sock

pid-file=/home/mysql/mysqld.pid

#transaction_isolation=read-committed

default_storage_engine=innodb

max_allowed_packet=128M

max_heap_table_size=64M

tmp_table_size=64M

read_buffer_size=2M

sort_buffer_size=2M

read_rnd_buffer_size=4M

open_files_limit=81920

table_open_cache=10000

table_definition_cache=10000

secure-file-priv = NULL

#secure_file_priv=''

wait_timeout=86400

default_authentication_plugin=mysql_native_password

log_error=/home/mysql/log/mysqld.err

log_timestamps=system

slow_query_log=1

slow_query_log_file=/home/mysql/slow_query.log

long_query_time=3

log_bin=/home/mysql/data/mysql-bin

binlog_format=row

#binlog_checksum=NONE

binlog_row_image=minimal

binlog_rows_query_log_events

binlog_error_action=ABORT_SERVER

#expire_logs_days=1 --disabled in mysql8.0

binlog_expire_logs_seconds=86400

slave_parallel_type=LOGICAL_CLOCK

slave_parallel_workers=8

master_info_repository=TABLE

relay_log_info_repository=TABLE

relay_log=/home/mysql/data/relay-log

relay_log_recovery=ON

log_slave_updates

skip_slave_start

#key_buffer_size=4M

#bulk_insert_buffer_size=4M

#myisam_sort_buffer_size=6M

#myisam_max_sort_file_size=10G

#myisam_repair_threads=1

#myisam_recover_options=default

innodb_open_files=8000

#innodb_page_size=8192

innodb_buffer_pool_size=4G

innodb_max_dirty_pages_pct=90

#innodb_buffer_pool_dump_pct=40

innodb_buffer_pool_instances=8

#innodb_buffer_pool_load_at_startup=ON

innodb_buffer_pool_dump_at_shutdown=ON

innodb_lock_wait_timeout=120

innodb_io_capacity=1000

innodb_io_capacity_max=2000

innodb_flush_method=O_DIRECT

#innodb_file_format=Barracuda

innodb_file_per_table=1

#innodb_undo_directory=/undolog/

#innodb_undo_logs=128

#innodb_undo_tablespaces=3

#innodb_undo_log_truncate=1

#innodb_max_undo_log_size=2G

#innodb_purge_rseg_truncate_frequency=128

#innodb_flush_neighbors=2

innodb_flush_log_at_trx_commit=0

innodb_log_file_size=100M

innodb_log_buffer_size=10M

innodb_log_files_in_group=3

innodb_purge_threads=4

innodb_thread_concurrency=0

innodb_print_all_deadlocks=ON

innodb_deadlock_detect=ON

innodb_strict_mode=ON

innodb_sort_buffer_size=64M

innodb_read_io_threads=6

innodb_write_io_threads=6

gtid_mode=ON

enforce_gtid_consistency=ON

binlog_checksum=NONE

slave_preserve_commit_order=ON

transaction_write_set_extraction=XXHASH64

loose-group_replication_group_name="aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa"

loose-group_replication_start_on_boot=off

loose-group_replication_local_address= "192.168.0.52:24902"

loose-group_replication_group_seeds= "192.168.0.51:24901,192.168.0.52:24902,192.168.16.15:24903"

loose-group_replication_bootstrap_group= off

[mysql]

socket=/tmp/mysql.sock

default-character-set = utf8mb4

prompt="\\u@\\h :\\d\\r:\\m:\\s>"

[mysqldump]

socket=/tmp/mysql.sock

[mysqladmin]

socket=/tmp/mysql.sock

初始化第二个节点服务:

# mysqld --initialize-insecure --user=mysql

启动第二个节点上的mysql8.0:

# mysqld_safe --user=mysql &

重复第一个节点创建用户并安装组复制插件的步骤：

mysql>set sql_log_bin=0;

Query OK, 0 rows affected (0.00 sec)

mysql>CREATE USER repl@'%' identified by '123456';

Query OK, 0 rows affected (0.01 sec)

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

Query OK, 0 rows affected (0.00 sec)

mysql>set sql_log_bin=1;

Query OK, 0 rows affected (0.00 sec)

mysql>CHANGE MASTER TO MASTER_USER='repl', MASTER_PASSWORD='123456' FOR CHANNEL 'group_replication_recovery';

Query OK, 0 rows affected, 2 warnings (0.28 sec)

mysql>set global group_replication_ip_whitelist="192.168.0.51,192.168.0.52,192.168.16.15";

Query OK, 0 rows affected (0.00 sec)

mysql>show variables like '%white%';

+--------------------------------+----------------------------------------------+

| Variable_name | Value |

+--------------------------------+----------------------------------------------+

| group_replication_ip_whitelist | 192.168.0.51,192.168.0.52,192.168.16.15 |

+--------------------------------+----------------------------------------------+

1 row in set (0.01 sec)

root@localhost :(none)02:37:26>INSTALL PLUGIN group_replication SONAME 'group_replication.so';

Query OK, 0 rows affected (0.02 sec)

root@localhost :(none)02:37:37>START GROUP_REPLICATION;

Query OK, 0 rows affected (4.05 sec)

root@localhost :(none)02:37:59>select * from performance_schema.replication_group_members;

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

2 rows in set (0.09 sec)

查看主节点创建的数据：

root@localhost :(none)02:46:38>show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| sys |

| test |

+--------------------+

5 rows in set (0.04 sec)

root@localhost :test02:46:42>show tables;

+----------------+

| Tables_in_test |

+----------------+

| test |

+----------------+

1 row in set (0.00 sec)

root@localhost :test02:46:45>desc test;

+-------+-------------+------+-----+---------+-------+

+-------+-------------+------+-----+---------+-------+

| id | int(11) | NO | PRI | NULL | |

+-------+-------------+------+-----+---------+-------+

2 rows in set (0.00 sec)

root@localhost :test02:46:47>select * from test;

+----+-----------+

| id | name |

+----+-----------+

| 1 | lovepeihy |

+----+-----------+

1 row in set (0.00 sec)

第三个节点按照第二个节点同样的方法做：

最终查出来的结果如下:

root@localhost :test03:59:14>select * from performance_schema.replication_group_members;

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

+---------------------------+--------------------------------------+--------------------+-------------+--------------+-------------+----------------+

3 rows in set (0.00 sec)

注意:如果在从节点上插入数据，会报错：

mysql>insert into test select * from test;

ERROR 1290 (HY000): The MySQL server is running with the --super-read-only option so it cannot execute this statement

至此，MySQL 8.0.13的组复制安装完毕。

补充:

mysql的组复制配置有关的参数解释:

gtid_mode=ON ###是否打开GTID模式

enforce_gtid_consistency=ON ###是否强制事务一致

binlog_checksum=NONE ###是否开启binlog校验功能,设置成不开启

slave_preserve_commit_order=ON ###控制Slave上的binlog提交顺序和Master上的binlog的提交顺序一样,保证GTID的顺序

transaction_write_set_extraction=XXHASH64 ###开启主键信息采集功能，8.0.2开始默认值为XXHASH64

loose-group_replication_group_name="aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa" ###设置组名，随便起，但是不能与UUID重复

loose-group_replication_start_on_boot=off ###MySQL SERVER启动时不自动启动组复制

loose-group_replication_local_address= "192.168.0.51:24901" ###设置成员的本地地址，后面端口号为组复制的端口号

loose-group_replication_group_seeds= "192.186.140.51:24901,192.168.0.52:24902,192.168.16.15:24903" ###设置种子成员的地址,有几台机器设置几个

loose-group_replication_bootstrap_group= off ###配置是否自动引导组

感谢各位的阅读，以上就是“MySQL8.0.13组复制的安装步骤”的内容了，经过本文的学习后，相信大家对MySQL8.0.13组复制的安装步骤这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是创新互联，小编将为大家推送更多相关知识点的文章，欢迎关注！

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