檢查配置文件/etc/my.cnf發現供應商修改了mysql資料庫的數據存儲目錄，另外mysql.sock文件位置也變更為了/dat/data/mysql/mysql.sock 第一種方法，修改my.cnf的配置項，修改到'/var/lib/mysql/mysql.sock‘第二種方法：建立mysq ...
檢查配置文件/etc/my.cnf發現供應商修改了mysql資料庫的數據存儲目錄，另外mysql.sock文件位置也變更為了/dat/data/mysql/mysql.sock
第一種方法，修改my.cnf的配置項，修改到'/var/lib/mysql/mysql.sock‘
第二種方法：建立mysql.sock文件的軟連接
$ more /etc/my.cnf
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
innodb_buffer_pool_size = 2048M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
#datadir=/var/lib/mysql
#socket=/var/lib/mysql/mysql.sock
datadir=/dat/data/mysql
socket=/dat/data/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Recommended in standard MySQL setup
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
檢查發現/var/lib/mysql.sock文件不存在，可以通過建立mysql.sock文件的軟連接。然後登錄資料庫，問題解決。
[root@GETAZLNX005 ~]# ls /var/lib/mysql.sock
ls: cannot access /var/lib/mysql.sock: No such file or director
[root@GETAZLNX005 ~]# ln -s /dat/data/mysql/mysql.sock /var/lib/mysql/mysql.sock
