原因：由于忘记及时续费一个站点，DO 设置成了 suspended 状态，续费后，DO power on 然而发现 mysql 状态是关闭的，然后我尝试启动失败。

环境：openresty+php+mysql

正常的：openresty 和 php-fpm 都是 active 状态

非正常的：执行 systemctl status mysql

● mysqld.service - MySQL Community Server

Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)

Active: failed (Result: start-limit) since Tue 2018-11-27 06:40:18 UTC; 9min ago

Process: 2266 ExecStartPost=/usr/bin/mysql-systemd-start post (code=exited, status=0/SUCCESS)

Process: 2265 ExecStart=/usr/bin/mysqld_safe --basedir=/usr (code=exited, status=203/EXEC)

Process: 2250 ExecStartPre=/usr/bin/mysql-systemd-start pre (code=exited, status=0/SUCCESS)

Main PID: 2265 (code=exited, status=203/EXEC)

Nov 27 06:40:18 systemd[1]: Failed to start MySQL Community Server.

Nov 27 06:40:18 systemd[1]: Unit mysqld.service entered failed state.

Nov 27 06:40:18 systemd[1]: mysqld.service failed.

Nov 27 06:40:18 systemd[1]: mysqld.service holdoff time over, scheduling restart.

Nov 27 06:40:18 systemd[1]: start request repeated too quickly for mysqld.service

Nov 27 06:40:18 systemd[1]: Failed to start MySQL Community Server.

Nov 27 06:40:18 systemd[1]: Unit mysqld.service entered failed state.

Nov 27 06:40:18 systemd[1]: mysqld.service failed.

排查过程：

ls -ld /var/lib/mysql/

drwxr-xr-x 5 mysql mysql 268 Nov 27 06:27 /var/lib/mysql/

ls -lh /var/lib/mysql/

total 29M

-rw-rw---- 1 mysql mysql 16K Apr 13 2018 aria_log.00000001

-rw-rw---- 1 mysql mysql 52 Apr 13 2018 aria_log_control

-rw-rw---- 1 mysql mysql 18M Nov 22 04:47 ibdata1

-rw-rw---- 1 mysql mysql 5.0M Nov 27 05:52 ib_logfile0

-rw-rw---- 1 mysql mysql 5.0M Apr 13 2018 ib_logfile1

drwx------ 2 mysql mysql 4.0K Apr 13 2018 mysql

srwxrwxrwx 1 mysql mysql 0 Nov 27 05:52 mysql.sock

-rw-r----- 1 mysql mysql 5.8K Apr 13 2018 newdomainname.err

drwx------ 2 mysql mysql 12K Nov 22 00:57 domainname

drwx------ 2 mysql mysql 4.0K Apr 13 2018 performance_schema

-rw-r--r-- 1 mysql mysql 286 Apr 13 2018 RPM_UPGRADE_HISTORY

-rw-r--r-- 1 mysql mysql 286 Apr 13 2018 RPM_UPGRADE_MARKER-LAST

netstat -ntlp

Active Internet connections (only servers)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 1303/php-fpm: maste

tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 783/mysqld

tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd

tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 1329/nginx: master

tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1285/sshd

tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1159/master

tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 1329/nginx: master

tcp6 0 0 :::111 :::* LISTEN 1/systemd

tcp6 0 0 :::80 :::* LISTEN 1329/nginx: master

tcp6 0 0 :::22 :::* LISTEN 1285/sshd

tcp6 0 0 ::1:25 :::* LISTEN 1159/master

ps -ef | grep mysqld

root 660 1 0 05:52 ? 00:00:00 /bin/sh /usr/bin/mysqld_safe

mysql 783 660 0 05:52 ? 00:00:02 /usr/sbin/mysqld --basedir=/usr --

datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-

error=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid --

socket=/var/lib/mysql/mysql.sock

root 2650 1022 0 06:54 pts/1 00:00:00 grep --color=auto mysqld

/var/log/mysqld.log 显示如下：

请问如何解决呢？问题到底出在哪里了？