my.cnf

key_buffer_size                = 32M
myisam_recover                 = FORCE,BACKUP

max_allowed_packet             = 16M
max_connect_errors             = 1000000
skip_name_resolve
sysdate_is_now                 = 1

log_bin                        = /var/lib/mysql/mysql-bin
expire_logs_days               = 14
sync_binlog                    = 1

tmp_table_size                 = 128M
max_heap_table_size            = 128M
query_cache_type               = 0
query_cache_size               = 0
max_connections                = 500
thread_cache_size              = 50
open_files_limit               = 65535
table_definition_cache         = 1024
table_open_cache               = 2048


innodb_flush_method            = O_DIRECT
innodb_log_files_in_group      = 2
innodb_log_file_size           = 1G
innodb_flush_log_at_trx_commit = 2
innodb_file_per_table          = 1
innodb_buffer_pool_size        = 4G


log_error                      = /var/lib/mysql/mysql-error.log
log_queries_not_using_indexes  = 1
slow_query_log                 = 1
slow_query_log_file            = /var/lib/mysql/mysql-slow.log