MySQL完全同步复制的几种实现方法

[mysqld]
# 通用配置
server_id = [唯一ID]
gtid_mode = ON
enforce_gtid_consistency = ON
binlog_format = ROW

# Group Replication配置
plugin_load_add = 'group_replication.so'
transaction_write_set_extraction = XXHASH64
group_replication_group_name = "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa" # 唯一UUID
group_replication_start_on_boot = OFF
group_replication_local_address = "节点IP:33061"
group_replication_group_seeds = "节点1IP:33061,节点2IP:33061,节点3IP:33061"
group_replication_bootstrap_group = OFF
group_replication_consistency = BEFORE_AND_AFTER  # 完全同步关键参数

-- 在第一个节点执行
SET GLOBAL group_replication_bootstrap_group=ON;
START GROUP_REPLICATION;
SET GLOBAL group_replication_bootstrap_group=OFF;

-- 在其他节点执行
START GROUP_REPLICATION;

[mysqld]
wsrep_on = ON
wsrep_provider = /usr/lib/galera/libgalera_smm.so
wsrep_cluster_name = "my_cluster"
wsrep_cluster_address = "gcomm://node1_ip,node2_ip,node3_ip"
wsrep_node_name = "node1"
wsrep_node_address = "当前节点IP"
wsrep_sst_method = rsync
binlog_format = ROW
default_storage_engine = InnoDB

# 第一个节点
systemctl start mysql --wsrep-new-cluster

# 其他节点
systemctl start mysql

[mysqld]
# 主库配置
rpl_semi_sync_master_enabled = 1
rpl_semi_sync_master_wait_for_slave_count = [从库数量]
rpl_semi_sync_master_wait_point = AFTER_SYNC
rpl_semi_sync_master_timeout = 18446744073709551615  # 最大可能值，几乎不超时

# 从库配置
rpl_semi_sync_slave_enabled = 1

SET GLOBAL group_replication_consistency = BEFORE;

SELECT * FROM performance_schema.replication_group_members;
SELECT * FROM performance_schema.replication_group_member_stats;