Question Connections limited to ¿what value?

[Juan Carlos Nava]

Since a few days ago here, my server with plesk onyx has started to consume a lot of CPU, I have performed the common diagnostic tasks, such as the audit of access.log, see the htop, etc. I'm still not very clear about what I have to do in the htop registers, I notice that processes like patchmand and sw-engine-fpm consume too many resources.

Reading some articles, I would like to configure the performance tab in the hosting plans, but in "Connections limited to" I do not know what value to put.

Any help in optimizing plesk, security and resource management?

 

[Bitpalast]

"Connections limited to" is an integer value that defines how many concurrent connections to the instance can be made. This will not solve the issue when you have determined that sw-engine-fpm is consuming a lot of CPU power.

My suggestion is to first run
# watch "ps aux | sort -nrk 3,3 | head -n 20"
and observe, what the processes are that really cause the load. From there further investigation is required.

 

[Juan Carlos Nava]

i got it..

Look the output

USER GPID %CPU %MEM VSZ RSS TTY 48GSTAT START TIME COMMAND
mysql 23601 0.3 3.8 3639848 1292920 ? Ssl mar06 52:35 /usr/sbin/mysqld
www-data 29791 0.0 0.1 496868 36476 ? 5;48HSl 11:55 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 27734 0.0 0.2 724960 69820 ? 6;48HSl 11:30 0:01 /usr/sbin/apache2 -k start <-- POINTER A
www-data 23930 0.0 0.1 724640 51540 ? 7;48HSl 11:53 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 23445 0.0 0.0 354780 24840 ? 8;48HS 11:28 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 17679 0.0 0.0 409820 30212 ? 9;48HS 12:44 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 17678 0.0 0.0 409820 30212 ? 10;48HS 12:44 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 17108 0.0 0.2 726400 67312 ? 11;48HSl 12:01 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 16955 0.0 0.1 724644 44232 ? 12;48HSl 12:01 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 16954 0.0 0.1 724920 46112 ? 13;48HSl 12:01 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 16952 0.0 0.2 724712 67752 ? 14;48HSl 12:01 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 16918 0.0 0.1 724744 57644 ? 15;48HSl 12:01 0:00 /usr/sbin/apache2 -k start <-- POINTER A
www-data 12461 0.0 0.0 372208 4584 ? 16;48HS mar11 0:00 php-fpm: pool www <-- ¿WHAT IT IS?
www-data 12460 0.0 0.0 372208 4584 ? 17;48HS mar11 0:00 php-fpm: pool www <-- ¿WHAT IT IS?
whoopsie 674 0.0 0.0 531616 3384 ? 18;48HSsl ene08 0:20 /usr/bin/whoopsie -f
syslog 339 0.0 0.0 184632 2184 ? 20;48HSsl ene08 14:47 /usr/sbin/rsyslogd -n
sw-cp-s+ 28500 0.0 0.0 39328 3864 ? 21;48HS mar06 0:06 sw-cp-server: worker process
root 21;14H9 0.0 0.0 31G0 0 ? 21;48HS feb26 0:00 [rpciod/2730212/]
root 11G 82 22;27H15636 160 tty1 49Gs+ ene08 22;66H/sbin/agetty --noclear --keep-baud console 115200 38400 9600 vt220 37;157H 37;1H

Now i have another question...

How do i know the details of the "pounter A", like domain, path, file or script php ????

 

[Bitpalast]

Is "<-- Pointer A" part of the output or is that something that you have added?
As you can see from the %CPU column, Apache does not generate any load at all.
What is the output of
# watch "ps aux | sort -nrk 3,3 | head -n 20"
?

 

[Juan Carlos Nava]

Is "<-- Pointer A" part of the output or is that something that you have added?

oh, im sorry for didn't mentioned , yes it was a note.

---

Right now, the server is lightless



my problem is not always...

do i see all cron task of the server?

some documentation of the defauls plesk cron task?

--

and peter... Thanks so much dude.

 

[Bitpalast]

You will need to wait and take the screenshot when the issue occurs. Else it is not possible to find the process that is causing it.

 

[MarkM]

Is there some sort of pattern to when this issue does occur?

 

[Juan Carlos Nava]

when it happens again, I will capture and publish in this thread all .. many thanks

 

[Juan Carlos Nava]

Is there some sort of pattern to when this issue does occur?

maybe bewteen 6am and 10am every day (+2 UTC)