Job for httpd.service failed because the control process exited with error code.

Description Installed Ambari + HDP (CentOS 8, Alibaba Cloud Server), made a local yum source, after installing httpd, an error is reported

Job for httpd.service failed because the control process exited with error code.see “systemctl status httpd.service” and “journalctl -xe” for details.

This reminder will let you check the current status log. When viewing the status log, you will basically find that some services are in the fail state, basically the httpd service fails

Here are some solutions:

Solution: This is a very common error, there are two possible causes

1. Just kill this process:

First ps –aux | grep http
The second line number is the process pid number
Kill -9 pid number to kill the process
After killing, restart reboot and then ps –aux | grep http to ensure that the httpd process is killed. If it is found that the process cannot be killed, look down

2. If the process is killed, the restart process still exists, which means that it has become a zombie process, and reinstall Had httpd

Proceed as follows:
First uninstall httpd and mod_wsgi with yum,
Command: yum remove httpd mod_wsgi;
Then install yun -y install httpd mod_wsgi
After the installation is complete, service httpd restart is enough. The problem is basically eliminated

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