原文地址：MYSQL 8.0.33 8 核 64G my.cnf 配置
自建 MYSQL, 1 主 3 从，前环境使用的 my.cnf 配置文件，准备把它迁移到 AWS 去，
innodb_io_capacity 是根据当前系统购买配置时给的参数；
innodb_buffer_pool_size 是内存的 75%；
innodb_redo_log_capacity 64G 内存建议 4G
其它有些参数调整不知道是不是合理。
[client]
port = 3306
socket = /tmp/mysql.sock
[mysqld]
user = mysql
port = 3306
socket = /tmp/mysql.sock
server_id = 100
#bind_address = 127.0.0.1
basedir = /usr/local
datadir = /var/db/mysql
tmpdir = /var/db/mysql_tmpdir
log_error = /var/db/mysql/error.log
replica_load_tmpdir = /var/db/mysql_tmpdir
secure_file_priv = /var/db/mysql_secure
authentication_policy = caching_sha2_password
explicit_defaults_for_timestamp = ON
max_connections = 2000
max_connect_errors = 3000
max_allowed_packet = 512M
gtid_mode = ON
enforce_gtid_consistency = ON
innodb_file_per_table = ON
#innodb_dedicated_server = ON
innodb_sort_buffer_size = 64M
innodb_buffer_pool_size = 48G
innodb_redo_log_capacity = 4G
innodb_write_io_threads = 8
innodb_read_io_threads = 8
innodb_log_buffer_size = 64M
innodb_data_home_dir = /var/db/mysql
innodb_log_group_home_dir = /var/db/mysql
innodb_data_file_path = ibdata1:128M:autoextend
innodb_temp_data_file_path = ibtmp1:128M:autoextend
innodb_flush_method = O_DIRECT
innodb_io_capacity = 3000
innodb_io_capacity_max = 6000
innodb_adaptive_hash_index = OFF
sync_binlog = 1
sync_relay_log = 1
tmp_table_size = 32M
max_heap_table_size = 32M
thread_stack = 512K
thread_cache_size = 30
key_buffer_size = 256M
read_buffer_size = 8M
sort_buffer_size = 4M
join_buffer_size = 4M
read_rnd_buffer_size = 4M
binlog_cache_size = 16M
binlog_expire_logs_auto_purge = OFF
binlog_expire_logs_seconds = 3280000000
log_replica_updates = ON
log_bin = master
relay_log = relay
#relay_log_purge = ON
#relay_log_recovery = ON
skip_name_resolve = ON
net_buffer_length = 32k
net_retry_count = 16380
#read_only = ON
#super_read_only = ON
#performance_schema = OFF
event_scheduler = OFF
mysqlx = OFF
mysqlx_port = 33060
mysqlx_socket = /tmp/mysqlx.sock
mysqlx_bind_address = 127.0.0.1,::1
[mysqldump]
max_allowed_packet = 1G
quote_names
quick