[mysqld]
# Basic Settings
default-storage-engine = innodb
sql-mode = "STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
max_connections = 200
max_user_connections = 180

# Character Set
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci

# InnoDB Settings
innodb_buffer_pool_size = 1G
innodb_buffer_pool_instances = 4
innodb_log_file_size = 256M
innodb_log_buffer_size = 64M
innodb_flush_log_at_trx_commit = 2
innodb_flush_method = O_DIRECT
innodb_file_per_table = 1
innodb_open_files = 400

# Query Cache (disabled in MySQL 8.0+, but kept for compatibility)
query_cache_type = OFF
query_cache_size = 0

# Temp Tables
tmp_table_size = 64M
max_heap_table_size = 64M

# Logging
slow_query_log = 1
slow_query_log_file = /var/log/mysql/slow.log
long_query_time = 2
log_queries_not_using_indexes = 1

# Binary Logging
log-bin = mysql-bin
binlog_format = ROW
expire_logs_days = 7
max_binlog_size = 100M

# Safety
max_allowed_packet = 64M
bind-address = 0.0.0.0

# Performance Schema
performance_schema = ON
performance_schema_max_table_instances = 400
performance_schema_max_table_handles = 4000

[mysql]
default-character-set = utf8mb4

[client]
default-character-set = utf8mb4