Issue Httpd -D FOREGROUND High Memory

[cem]

Hello,

About 1 month ago I had a problem accessing the server. I upgraded plesk version to 18.0.54. The configuration of the sites is broken. I reconfigured it via plesk. After that day, httpd started to use high ram from time to time. It started happening twice a day. It was disappearing when I restarted httpd. but it started to lock the server for 3-4 days. sometimes it comes back like a monster every 10 minutes, sometimes every 3-4 hours. For example, nothing happened last night. it started this morning and it comes back every 10 minutes. I tried everything I searched on the internet. I upgraded plesk version to 18.0.55. There are about 1000 domains.

Plesk version: 18.0.55
Ram: 32 GB
Databse: Mariadb
WAF: Closed
Grafana: Closed

php74

7.4.33-1centos.7.221109.0743

nginx	1.24.0-2.centos.7+p18.0.53.0+t230516.1254
nss	3.79.0-5.el7_9
openssl	1.0.2k-26.el7_9

httpd

2.4.6-99.el7.centos.1

CPU	Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz (8 core(s))
Version	Plesk Obsidian v18.0.55_build1800230825.08 os_CentOS 7
OS	CentOS Linux 7.9.2009 (Core)
Key number	PLSK.10587643.0001

 

[Peter Debik]

The RAM usage seems to be a symptom. Have you also looked at the load average? It is way too high. The high load also indicates an issue, maybe another symptom for the same root cause. The root cause are very likely PHP scripts, maybe bad bot attacks, maybe just a lot of traffic against one of your sites. You can find out more by checking ps aux | grep php-fpm | grep -v master. This will show you the user processes and their cpu load. From there, check the webserver access_ssl_log file of the culprits to find out what's going on with their websites. Solving the cpu load issue will probably solve the RAM issue along.