sudo apt-get update
sudo apt-get install mysql-server

server_id=1
bind-address=0.0.0.0
gtid_mode=ON
enforce_gtid_consistency=ON
master_info_repository=TABLE
relay_log_info_repository=TABLE
binlog_checksum=NONE
log_slave_updates=ON
log_bin=binlog
binlog_format=ROW
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= "10.0.0.4:24901"
loose-group_replication_group_seeds= "10.0.0.4:24901,10.0.0.5:24902,10.0.0.6:24903"
loose-group_replication_bootstrap_group= off

sudo service mysql restart

mysql -u root -p

 mysql> SET SQL_LOG_BIN=0;
 mysql> CREATE USER rpl_user@'%';
 mysql> GRANT REPLICATION SLAVE ON *.* TO rpl_user@'%' IDENTIFIED BY 'rpl_pass';
 mysql> FLUSH PRIVILEGES; #在从数据库不需要执行
 mysql> SET SQL_LOG_BIN=1;
mysql> CHANGE MASTER TO MASTER_USER='rpl_user', MASTER_PASSWORD='rpl_pass' FOR CHANNEL 'group_replication_recovery';

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

mysql> SHOW PLUGINS;

10.0.0.4 mysql-1
10.0.0.5 mysql-2
10.0.0.6 mysql-3

mysql> SET GLOBAL group_replication_bootstrap_group=ON;
mysql> START GROUP_REPLICATION;
mysql> SET GLOBAL group_replication_bootstrap_group=OFF;

mysql> START GROUP_REPLICATION;

mysql> SELECT * FROM performance_schema.replication_group_members;

mysql> select *from performance_schema.replication_group_members where member_id =(select variable_value from performance_schema.global_status WHERE VARIABLE_NAME= 'group_replication_primary_member');