[mysqld]
symbolic-links=0
server-id=5
log-bin=mysql-bin-1.log
enforce-gtid-consistency=ON
log-slave-updates=ON
gtid-mode=ON
transaction-write-set-extraction=XXHASH64
binlog-checksum=NONE
master-info-repository=TABLE
relay-log-info-repository=TABLE
plugin-load=group_replication.so
relay-log-recovery=ON
loose-group-replication-start-on-boot=OFF
loose-group-replication-group-name=bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb
loose-group-replication-local-address=mgr-b-2:6606
loose-group-replication-group-seeds=mgr-b-1:6606,mgr-b-2:6606,mgr-b-3:6606
loose-group-replication-single-primary-mode=ON
loose-group-replication-enforce-update-everywhere-checks=OFF