[root@sqldss log]# cat /etc/my.cnf
# Generated by Percona Configuration Wizard (http://tools.percona.com/) version REL5-20120208
# Configuration name anagrafica-4 generated for nikdom@gmail.com at 2016-08-05 14:00:44

[mysql]

# CLIENT #
port                           = 3306
socket                         = /var/lib/mysql/mysql.sock

[mysqld]

#innodb_force_recovery = 1
server-id=2
# GENERAL #
user                           = mysql
default-storage-engine         = InnoDB
federated
socket                         = /var/lib/mysql/mysql.sock
pid-file                       = /var/lib/mysql/mysql.pid
lower_case_table_names         = 1
skip_name_resolve

# MyISAM #
key-buffer-size                = 32M
myisam-recover                 = FORCE,BACKUP

# SAFETY #
max-allowed-packet             = 16M
max-connect-errors             = 400

# DATA STORAGE #
datadir                        = /var/lib/mysql/

# BINARY LOGGING #
binlog_format           = MIXED
log-bin                        = /var/lib/mysql/mysql-bin
expire-logs-days               = 14
sync-binlog                    = 1

# CACHES AND LIMITS #
tmp-table-size                 = 32M
max-heap-table-size            = 32M
query-cache-type               = 0
query-cache-size               = 0
max-connections                = 200
thread-cache-size              = 50
open-files-limit               = 65535
table-definition-cache         = 4096
table-open-cache               = 10240
thread_pool_size        =16
binlog_cache_size       =16M
# INNODB #
innodb-flush-method            = O_DIRECT
innodb-log-files-in-group      = 2
innodb-log-file-size           = 3G
innodb-flush-log-at-trx-commit = 2
innodb-file-per-table          = 1
#innodb-buffer-pool-size        = 5G
#innodb_buffer_pool_instances   = 5
innodb-buffer-pool-size        = 12G
innodb_buffer_pool_instances    = 10
# LOGGING #
log-error                      = /var/log/mysql-error.log
log-queries-not-using-indexes  = 1
slow-query-log                 = 1
slow-query-log-file            = /var/log/mysql-slow.log