Mysql8官方分布式数据库MGR最佳实践_please check that group_replication_recovery chann

skip-name-resolve
max_connections=1000
max_user_connections=800
max_allowed_packet=512M
max_connect_errors=100000
datadir = /data/mysql/mysql8/data/3309
socket = /data/mysql/mysql8/run/3309/mysql.sock
pid_file = /data/mysql/mysql8/run/3309/mysql.pid
transaction_isolation = READ-COMMITTED
lower_case_table_names=1
default_time_zone =+8:00
open_files_limit=65535
log_timestamps=system
wait_timeout=900
interactive_timeout=900

##innodb setting##
innodb_buffer_pool_size = 256M
innodb_buffer_pool_instances = 1
innodb_io_capacity=2000
innodb_flush_method=O_DIRECT

innodb_log_group_home_dir = /data/mysql/mysql8/log/3309/redo
innodb_log_file_size = 128M
innodb_log_files_in_group=4
innodb_log_buffer_size = 32M

innodb_undo_directory = /data/mysql/mysql8/log/3309/undo
innodb_undo_tablespaces = 4
innodb_undo_log_truncate=1
innodb_max_undo_log_size=1G

innodb_flush_neighbors=0
innodb_flush_log_at_trx_commit = 1
innodb_print_all_deadlocks = 1
innodb_online_alter_log_max_size=128M

innodb_lock_wait_timeout=10
innodb_file_per_table=ON
innodb_doublewrite=ON

##log settings##
log-error = /data/mysql/mysql8/log/3309/error.log
log-bin = /data/mysql/mysql8/log/3309/mysql_bin.log
slow_query_log = 1
slow_query_log_file = /data/mysql/mysql8/log/3309/mysql_slow_query.log
long_query_time = 10

##replication settings##
gtid-mode=on
enforce-gtid-consistency=true
master-info-repository=TABLE
relay-log-info-repository=TABLE
sync-master-info=1000
relay_log_recovery = 1
relay-log=/data/mysql/mysql8/log/3309/relay/mysql-relay-bin

#binlog
log_bin=/data/mysql/mysql8/log/3309/binlog
expire_logs_days=10
max_binlog_cache_size=1024M
sync_binlog=1

##MGR settings
binlog_checksum = NONE
log_slave_updates = ON
binlog_format=row
#transaction_write_set_extraction =‘XXHASH64’
#loose-group_replication_group_name = ‘38f34157-cbe8-4623-a7bd-054cc5c2de0b’
#loose-group_replication_start_on_boot = off
#loose-group_replication_local_address = ‘192.168.112.131:10061’
#loose-group_replication_group_seeds =‘192.168.112.131:10061,192.168.112.132:10061,192.168.112.135:10061’
#loose-group_replication_bootstrap_group = off
#loose-group_replication_ip_whitelist = ‘192.168.112.131/24,192.168.112.132/24,192.168.112.135/24’

[client]
port = 3309
socket = /data/mysql/mysql8/run/3309/mys