[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/mysql_data
socket=/var/lib/mysql/mysql.sock
character-set-server = utf8
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
log-error=/var/log/mysql/mysqld.log
pid-file=/var/run/mysql/mysqld.pid
innodb_buffer_pool_size = 16G
innodb_buffer_pool_instances = 16
max_allowed_packet = 64M
max_heap_table_size = 256M
read_rnd_buffer_size = 2M
sort_buffer_size = 2M
join_buffer_size= 128M
#query_cache_size =
innodb_file_per_table = 1
lower_case_table_names = 1
log_bin_trust_function_creators=1
[mysqld]
server-id=1
log-bin=mysql-bin
log-slave-updates
binlog-ignore-db = mysql
binlog-ignore-db = information_schema
binlog-ignore-db = performance_schema
replicate-wild-ignore-table = mysql.%
replicate-wild-ignore-table = information_schema.%
replicate-wild-ignore-table = performance_schema.%
expire_logs_days=5
default-character-set = utf8
原文：https://www.cnblogs.com/A121/p/11056767.html