[mysqld]
# 字符集设置
character-set-server=utf8mb4
collation-server=utf8mb4_unicode_ci
init_connect='SET NAMES utf8mb4'


# 连接设置
max_connections=500
wait_timeout=300
interactive_timeout=300
max_connect_errors=1000

# 缓冲区设置
innodb_buffer_pool_size=12G
key_buffer_size=256M
sort_buffer_size=4M
read_buffer_size=4M
read_rnd_buffer_size=8M
join_buffer_size=4M

# InnoDB 优化
innodb_file_per_table=1
innodb_flush_method=O_DIRECT
innodb_flush_log_at_trx_commit=2
innodb_io_capacity=1000
innodb_io_capacity_max=2000
innodb_buffer_pool_instances=8
innodb_thread_concurrency=16
innodb_purge_threads=4

# 日志设置
slow_query_log=1
slow_query_log_file=/var/lib/mysql/slow.log
long_query_time=1
log_queries_not_using_indexes=1
log_slow_admin_statements=1
log_slow_slave_statements=1

# 其他设置
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
lower_case_table_names=1

[client]
default-character-set=utf8mb4