MySQL Group Replication 部署 (Single Master)

准备3台服务器

10.0.0.201 node201

10.0.0.202 node202

10.0.0.203 node203

操作系统：centos 7.x 64

mysql: 5.7.20

采用编译源码安装以及systemctl管理

http://blog.csdn.net/chenhaifeng2016/article/details/77689270

配置node201

修改配置文件/etc/my.cnf

#
# Replication configuration parameters
#
server_id=201
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
#
# Group Replication configuration
#
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= "10.0.0.201:33060"
loose-group_replication_group_seeds= "10.0.0.201:33060,10.0.0.202:33060,10.0.0.203:33060"
loose-group_replication_bootstrap_group= off

执行以下命令

SET SQL_LOG_BIN=0;
CREATE USER rpl_user@'%' IDENTIFIED BY 'password';
GRANT REPLICATION SLAVE,replication client ON *.* TO rpl_user@'%';
FLUSH PRIVILEGES;
SET SQL_LOG_BIN=1;
CHANGE MASTER TO MASTER_USER='rpl_user', MASTER_PASSWORD='password' FOR CHANNEL 'group_replication_recovery';INSTALL PLUGIN group_replication SONAME 'group_replication.so';
SET GLOBAL group_replication_bootstrap_group=ON;
START GROUP_REPLICATION;
SET GLOBAL group_replication_bootstrap_group=OFF;查看状态
SELECT * FROM performance_schema.replication_group_members;

配置node202

修改配置文件/etc/my.cnf

#
# Replication configuration parameters
#
server_id=202
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#
# Group Replication configuration
#
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= "10.0.0.202:33060"
loose-group_replication_group_seeds= "10.0.0.201:33060,10.0.0.202:33060,10.0.0.203:33060"
loose-group_replication_bootstrap_group= off

执行以下命令

SET SQL_LOG_BIN=0;
CREATE USER rpl_user@'%';
GRANT REPLICATION SLAVE,replication client ON *.* TO rpl_user@'%' IDENTIFIED BY 'password';
SET SQL_LOG_BIN=1;
CHANGE MASTER TO MASTER_USER='rpl_user', MASTER_PASSWORD='password'  FOR CHANNEL 'group_replication_recovery';
INSTALL PLUGIN group_replication SONAME 'group_replication.so';
set global group_replication_allow_local_disjoint_gtids_join=ON;
START GROUP_REPLICATION;

配置node203

修改配置文件/etc/my.cnf

#
# Replication configuration parameters
#
server_id=203
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#
# Group Replication configuration
#
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= "10.0.0.203:33060"
loose-group_replication_group_seeds= "10.0.0.201:33060,10.0.0.202:33060,10.0.0.203:33060"
loose-group_replication_bootstrap_group= off

执行以下命令

SET SQL_LOG_BIN=0;
CREATE USER rpl_user@'%';
GRANT REPLICATION SLAVE,replication client ON *.* TO rpl_user@'%' IDENTIFIED BY 'password';
FLUSH PRIVILEGES;
SET SQL_LOG_BIN=1;
CHANGE MASTER TO MASTER_USER='rpl_user', MASTER_PASSWORD='password' FOR CHANNEL 'group_replication_recovery';
INSTALL PLUGIN group_replication SONAME 'group_replication.so';
set global group_replication_allow_local_disjoint_gtids_join=ON;
START GROUP_REPLICATION;

组复制部署已完成，输出结果显示node201为主节点可以读写，node202和node203只能读数据。

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