my.cnf配置文件

基础配置文件--pid文件和socket文件最好在配置文件中指定，这样在软件升级时不会出现问题
percona配置文件生成工具//
--专用mysql服务器，2颗cpu，4核超线程、内存8GB
# Generated by Percona Configuration Wizard () version REL5-20120208
# Configuration name larry_server generated for [e-mail] at 2015-07-06 07:20:34

[mysql]

# CLIENT #
port                           = 3306
socket                         = /mnt/mysql/dbdata/mysql.sock

[mysqld]

# GENERAL #
user                           = mysql
default-storage-engine         = InnoDB
socket                         = /mnt/mysql/dbdata/mysql.sock
pid-file                       = /mnt/mysql/dbdata/mysql.pid

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

# SAFETY #
max-allowed-packet             = 16M
max-connect-errors             = 1000000

# DATA STORAGE #
datadir                        = /mnt/mysql/dbdata/

# BINARY LOGGING #
log-bin                        = /mnt/mysql/dbdata/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                = 500
thread-cache-size              = 50
open-files-limit               = 65535
table-definition-cache         = 4096
table-open-cache               = 200

# INNODB #
innodb-flush-method            = O_DIRECT
innodb-log-files-in-group      = 2
innodb-log-file-size           = 256M
innodb-flush-log-at-trx-commit = 1
innodb-file-per-table          = 1
innodb-buffer-pool-size        = 6G

# LOGGING #
log-error                      = /mnt/mysql/dbdata/mysql-error.log
log-queries-not-using-indexes  = 1
slow-query-log                 = 1
slow-query-log-file            = /mnt/mysql/dbdata/mysql-slow.log