HTTPD corrupted HTTPD Service stopped

In the afternoon when the site on AWS EC2 is inaccessible, and the IP is accessible, login to SSH and view the service

Service--status-all

Discover that the HTTPD service is stopped, and then try to start httpd, prompt:

Starting httpd: () Permission denied:AH00058:Error retrieving PID file/var/run/httpd/httpd.pidah00059:remove it befor e Continuing if it is corrupted.

Google found an article:

Http://serverfault.com/questions/544879/service-httpd-restart-failure-on-aws-amazon-linux-ami

Follow the answers and finally solve

To be said, to use the root account in EC2, the command is:

sudo su

Slightly different from the answer, I try to

Su-root

Failed

And then the KILL command did not succeed,

Used a

For i in ' Lsof-i: 80 | grep http | awk {' Print $ '} '; Do kill-9 $i; Done

After that, start httpd again, and it succeeds.

HTTPD corrupted HTTPD Service stopped