MySQL Group Replication [Single-Primary Mode]单主模式搭建

安装环境

配置Single-Primary Mode复制单主模式，将PS02设置为主，PS03,PS04为从库

1.首先安装三台MYSQL

主机名	IP	server_id	端口
PS02	192.168.199.152	152	3306
PS03	192.168.199.153	153	3306
PS04	192.168.199.154	154	3306

之后依次启动PS02,PS03,PS04

2.设置hostname和IP的映射

vim /etc/hosts
192.168.199.152 PS02
192.168.199.153 PS03
192.168.199.154 PS04

3.配置文件

PS2 my.cnf

[client]
port            = 3306
socket          = /tmp/mysql.sock

[mysql]
prompt="\\u@\\h:\\p  [\\d]>
#pager="less -i -n -S"
##tee=/home/mysql/query.log
no-auto-rehash

[mysqld]

#misc
user = mysql
basedir = /usr/local/percona-server
datadir = /usr/local/percona-server/data
port = 3306
socket = /tmp/mysql.sock
event_scheduler = 1
binlog_format = row
server-id = 152
log-bin = /usr/local/percona-server/data/mysql-bin
general_log=1
log-slave-updates
#
symbolic-links=0
binlog_checksum = NONE
slave-parallel-type=LOGICAL_CLOCK
slave-preserve-commit-order=1
#group_replication_ssl_mode=enabled

# Rpl Sync Master
#rpl_semi_sync_master_enabled=1
#rpl_semi_sync_master_timeout=1000

#gtid
gtid-mode=on
enforce-gtid-consistency=1
master-info-repository=table
relay-log-info-repository=table
binlog_row_image = full
#
slave_parallel_workers=4
replicate-ignore-db = mysql
replicate-ignore-db = information_schema
replicate-ignore-db = performance_schema
replicate_wild_ignore_table=mysql.%
replicate_wild_ignore_table=information_schema.%
replicate_wild_ignore_table=performance_schema.%

transaction_write_set_extraction = XXHASH64
loose-group_replication_group_name = 'ce9be252-2b71-11e6-b8f4-00212844f856'
loose-group_replication_start_on_boot = off
loose-group_replication_local_address = '192.168.199.152:33061'
loose-group_replication_group_seeds ='192.168.199.152:33061,192.168.199.153:33062,192.168.199.154:33063'
loose-group_replication_bootstrap_group = off

## EVENT
#event_scheduler=1
#binlog_rows_query_log_events=1
#log_bin_use_v1_row_events=1

[mysqld_safe]
malloc-lib=/usr/lib64/libjemalloc.so.1

PS03 my.cnf

[client]
port            = 3306
socket          = /tmp/mysql.sock

[mysql]
prompt="\\u@\\h:\\p  [\\d]>
#pager="less -i -n -S"
##tee=/home/mysql/query.log
no-auto-rehash

[mysqld]

#misc
user = mysql
basedir = /usr/local/percona-server
datadir = /usr/local/percona-server/data
port = 3306
socket = /tmp/mysql.sock
event_scheduler = 0
binlog_format = row
server-id = 153
log-bin = /usr/local/percona-server/data/mysql-bin
general_log=1
log-slave-updates
#
symbolic-links=0
binlog_checksum = NONE
slave-parallel-type=LOGICAL_CLOCK
slave-preserve-commit-order=1

# Rpl Sync Master
#rpl_semi_sync_master_enabled=1
#rpl_semi_sync_master_timeout=1000

#gtid
gtid-mode=on
enforce-gtid-consistency=1
master-info-repository=table
relay-log-info-repository=table
binlog_row_image = full
#
slave_parallel_workers=4
replicate-ignore-db = mysql
replicate-ignore-db = information_schema
replicate-ignore-db = performance_schema
replicate_wild_ignore_table=mysql.%
replicate_wild_ignore_table=information_schema.%
replicate_wild_ignore_table=performance_schema.%

transaction_write_set_extraction = XXHASH64
loose-group_replication_group_name = 'ce9be252-2b71-11e6-b8f4-00212844f856'
loose-group_replication_start_on_boot = off
loose-group_replication_local_address = '192.168.199.153:33062'
loose-group_replication_group_seeds ='192.168.199.152:33061,192.168.199.153:33062,192.168.199.154:33063'
loose-group_replication_bootstrap_group = off

## EVENT
#event_scheduler=1
"/etc/my.cnf" 68L, 1657C                                                                                                                                                   53,1          Top
# Rpl Sync Master
#rpl_semi_sync_master_enabled=1
#rpl_semi_sync_master_timeout=1000

#gtid
gtid-mode=on
enforce-gtid-consistency=1
master-info-repository=table
relay-log-info-repository=table
binlog_row_image = full
#
slave_parallel_workers=4
#auto_increment_increment=2
#auto_increment_offset=1
#
replicate-ignore-db = mysql
replicate-ignore-db = information_schema
replicate-ignore-db = performance_schema
replicate_wild_ignore_table=mysql.%
replicate_wild_ignore_table=information_schema.%
replicate_wild_ignore_table=performance_schema.%

transaction_write_set_extraction = XXHASH64
loose-group_replication_group_name = 'ce9be252-2b71-11e6-b8f4-00212844f856'
loose-group_replication_start_on_boot = off
loose-group_replication_local_address = '192.168.199.153:33062'
loose-group_replication_group_seeds ='192.168.199.152:33061,192.168.199.153:33062,192.168.199.154:33063'
loose-group_replication_bootstrap_group = off

## EVENT
#event_scheduler=1
#binlog_rows_query_log_events=1
#log_bin_use_v1_row_events=1

[mysqld_safe]
malloc-lib=/usr/lib64/libjemalloc.so.1

PS04 my.cnf

[client]
port            = 3306
socket          = /tmp/mysql.sock

[mysql]
prompt="\\u@\\h:\\p  [\\d]>
#pager="less -i -n -S"
##tee=/home/mysql/query.log
no-auto-rehash

[mysqld]

#misc
user = mysql
basedir = /usr/local/percona-server
datadir = /usr/local/percona-server/data
port = 3306
socket = /tmp/mysql.sock
event_scheduler = 0
binlog_format = row
server-id = 154
log-bin = /usr/local/percona-server/data/mysql-bin
general_log=1
log-slave-updates
#
symbolic-links=0
binlog_checksum = NONE
slave-parallel-type=LOGICAL_CLOCK
slave-preserve-commit-order=1

# Rpl Sync Master
#rpl_semi_sync_master_enabled=1
#rpl_semi_sync_master_timeout=1000

#gtid
gtid-mode=on
enforce-gtid-consistency=1
master-info-repository=table
relay-log-info-repository=table
binlog_row_image = full
#
slave_parallel_workers=4
#auto_increment_increment=2
#auto_increment_offset=1
#
replicate-ignore-db = mysql
replicate-ignore-db = information_schema
replicate-ignore-db = performance_schema
replicate_wild_ignore_table=mysql.%
replicate_wild_ignore_table=information_schema.%
replicate_wild_ignore_table=performance_schema.%

transaction_write_set_extraction = XXHASH64
loose-group_replication_group_name = 'ce9be252-2b71-11e6-b8f4-00212844f856'
loose-group_replication_start_on_boot = off
loose-group_replication_local_address = '192.168.199.154:33063'
loose-group_replication_group_seeds ='192.168.199.152:33061,192.168.199.153:33062,192.168.199.154:33063'
loose-group_replication_bootstrap_group = off

## EVENT
#event_scheduler=1
                                                                                                                                                                           63,1          Top
# Rpl Sync Master
#rpl_semi_sync_master_enabled=1
#rpl_semi_sync_master_timeout=1000

#gtid
gtid-mode=on
enforce-gtid-consistency=1
master-info-repository=table
relay-log-info-repository=table
binlog_row_image = full
#
slave_parallel_workers=4
#auto_increment_increment=2
#auto_increment_offset=1
#
replicate-ignore-db = mysql
replicate-ignore-db = information_schema
replicate-ignore-db = performance_schema
replicate_wild_ignore_table=mysql.%
replicate_wild_ignore_table=information_schema.%
replicate_wild_ignore_table=performance_schema.%

transaction_write_set_extraction = XXHASH64
loose-group_replication_group_name = 'ce9be252-2b71-11e6-b8f4-00212844f856'
loose-group_replication_start_on_boot = off
loose-group_replication_local_address = '192.168.199.154:33063'
loose-group_replication_group_seeds ='192.168.199.152:33061,192.168.199.153:33062,192.168.199.154:33063'
loose-group_replication_bootstrap_group = off

## EVENT
#event_scheduler=1
#binlog_rows_query_log_events=1
#log_bin_use_v1_row_events=1

[mysqld_safe]
malloc-lib=/usr/lib64/libjemalloc.so.1

4.配置Group Replication

4.1 PS02配置Group Replication

4.1.1 在PS02中创建账号

mysql> SET SQL_BIN_LOG=0;
mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave'@'%' IDENTIFIED BY 'slave';
mysql> FLUSH PRIVILEGES;
mysql> SET SQL_BIN_LOG=1;

4.1.2 构建group replication集群

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

4.1.3 安装group replication插件

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

4.1.4 查看是否有group replication组件

mysql>SHOW PLUGINS;
+-----------------------------+----------+--------------------+----------------------+---------+
| Name                        | Status   | Type               | Library              | License |
+-----------------------------+----------+--------------------+----------------------+---------+
| rpl_semi_sync_master        | ACTIVE   | REPLICATION        | semisync_master.so   | GPL     |
+-----------------------------+----------+--------------------+----------------------+---------+

4.1.5 启动PS02上的group replication服务

 -- 设置group_replication_bootstrap_group为ON是为了标示以后加入集群的服务器都以这台服务器为基准，以后加入的就不需要设置了
 mysql> set global group_replication_bootstrap_group=ON;
 -- 启动收个集群节点
 mysql> start group_replication;
 mysql> set global group_replication_bootstrap_group=OFF;

4.1.6 查看MGR的状态

mysql> select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| group_replication_applier | 18c01a46-df39-11e7-b98f-000c2989d7c7 | PS02        |        3306 | ONLINE       |
+---------------------------+--------------------------------------+-------------+-------------+--------------+

4.2 PS03配置Group Replication

4.2.1 在PS02中创建账号

mysql> SET SQL_BIN_LOG=0;
mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave'@'%' IDENTIFIED BY 'slave';
mysql> FLUSH PRIVILEGES;
mysql> SET SQL_BIN_LOG=1;

4.2.2 构建group replication集群

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

4.2.3 安装group replication插件

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

4.2.4 查看是否有group replication组件

mysql>SHOW PLUGINS;
+-----------------------------+----------+--------------------+----------------------+---------+
| Name                        | Status   | Type               | Library              | License |
+-----------------------------+----------+--------------------+----------------------+---------+
| rpl_semi_sync_master        | ACTIVE   | REPLICATION        | semisync_master.so   | GPL     |
+-----------------------------+----------+--------------------+----------------------+---------+

4.2.5 启动PS03上的group replication服务

 -- 兼容加入组
 mysql> set global group_replication_allow_local_disjoint_gtids_join=ON;
 -- 启动收个集群节点
 mysql> start group_replication;

4.2.6 查看PS02和PS03的MGR的状态
PS03:

>select * from performance_schema.replication_group_members;                                              
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| group_replication_applier | 18c01a46-df39-11e7-b98f-000c2989d7c7 | PS02        |        3306 | ONLINE       |
| group_replication_applier | 97347859-dfe0-11e7-90cf-000c2911d0be | PS03        |        3306 | ONLINE       |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
3 rows in set (0.01 sec)

PS02:

>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| group_replication_applier | 18c01a46-df39-11e7-b98f-000c2989d7c7 | PS02        |        3306 | ONLINE       |
| group_replication_applier | 97347859-dfe0-11e7-90cf-000c2911d0be | PS03        |        3306 | ONLINE       |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
3 rows in set (0.00 sec)

4.3 PS04配置Group Replication

PS04配置和PS03一样…

5. 测试

创建数据库和表
1.PS02中创建数据库和表

PS03中查看数据库和表

没有问题
2.插入数据
PS02中插入数据

报错：查看日志

前两条错误是test表没有使用InnoDB引擎，而且表中没有主键
后面一条错误是test1表没有主键
在组复制中，有一些必须的条件，表InnoDB引擎和表主键就是其中之二
3.将两个表改为Innodb引擎，并添加主键，再测试插入