MGR config for mysql my.cnf

ssl=0
table_open_cache=30000
max_connect_errors=2000
innodb_adaptive_hash_index=0
## 禁用其他存储引擎
disabled_storage_engines="MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"
server_id=1
gtid_mode=ON
enforce_gtid_consistency=ON
binlog_checksum=NONE
log_bin=binlog
log_slave_updates=ON
binlog_format=ROW
master_info_repository=TABLE
relay_log_info_repository=TABLE
transaction_write_set_extraction=XXHASH64
plugin_load_add='group_replication.so' 
group_replication_group_name="aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa" 
group_replication_start_on_boot=off 
group_replication_local_address= "10.99.0.15:33061" 
group_replication_group_seeds= "10.99.0.15:33061,10.99.0.16:33061,10.99.0.17:33061" 

status:

SELECT * FROM performance_schema.replication_group_members;