mysqld服務在向my.cnf文件添加「safe-show-database」時開始掛起

Question

我在最小的Centos 7盒上新安裝了Mysqld 5.6.33。

它具有以下/ec/my.cnf文件成功啓動：

# 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 = 728M 
# 
# 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 
user=mysql 

# 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 

但是當我添加「安全秀數據庫」行的[mysqld]它停止啓動，掛出永遠與狀態

sudo systemctl status mysqld -l 
● mysqld.service - MySQL Community Server 
    Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) 
    Active: activating (start-post) since T  2016-09-14 13:03:04 UTC; 4s ago 
    Process: 1580 ExecStart=/usr/bin/mysqld_safe (code=exited, status=0/SUCCESS) 
    Process: 1569 ExecStartPre=/usr/bin/mysql-systemd-start pre (code=exited, status=0/SUCCESS) 
Main PID: 1580 (code=exited, status=0/SUCCESS);   : 1584 (mysql-systemd-s) 
    CGroup: /system.slice/mysqld.service 
      └─control 
      ├─1584 /bin/bash /usr/bin/mysql-systemd-start post 
      └─1851 sleep 1 

sep 14 13:03:04 db systemd[1]: Starting MySQL Community Server... 
sep 14 13:03:04 db mysqld_safe[1580]: 160914 13:03:04 mysqld_safe Logging to '/var/log/mysqld.log'. 
sep 14 13:03:04 db mysqld_safe[1580]: 160914 13:03:04 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 

日誌中什麼都沒有。

我試過禁用SELinus但沒有運氣。

我該怎麼辦才能解決這個問題？

Answer 1

從docs： 「--safe-show-database已在MySQL 5.5.3中刪除。」