• Please be aware: Kaspersky Anti-Virus has been deprecated
    With the upgrade to Plesk Obsidian 18.0.64, "Kaspersky Anti-Virus for Servers" will be automatically removed from the servers it is installed on. We recommend that you migrate to Sophos Anti-Virus for Servers.
  • The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.
  • We’re working on enhancing the Monitoring feature in Plesk, and we could really use your expertise! If you’re open to sharing your experiences with server and website monitoring or providing feedback, we’d love to have a one-hour online meeting with you.

cpu

  1. S

    Issue Mailman3, cpu near 100% all the time

    Hello, I have a new plesk server with Debian 12.5, I installed mailman3 and I migrated a web who worked with mailman2. The domain have 40 lists more or less. As a result of this, cpu usage of the server is nearly 100% all the time with the proccess list of phyton causing this. It is impossible...
  2. TradePOS

    Resolved I get 2000% CPU usage (Plesk mobile app readings)

    Hi, Today my system shows me error number (504 Gateway Time-Out nginx), when I looked to the Plesk mobile app CPU load average, all the three bars shows over 2000% usage image attached after restarting the whole server the bars back to normal between 60 to 40 % Server Specification: CPU...
  3. G

    Question Adding CPU and memory to virtual server after Plesk installation

    Hi, I've searched this forum but had no luck finding any info about recommendations or experience with upgrading / adding vCPU's and memory to a virtual server AFTER Plesk has been installed and configured. Is this a seriously bad idea, or can it be done? Is there any configuration required...
  4. E

    Issue Very high CPU usage

    Hello, I'm coming to you because I currently have a problem on my Plesk server. Since yesterday (08/08/21) at about 16:30, my CPU usage is extremely high : Usually the CPU Idle is at 98% / 99% (only a dozen sites hosted), and it has suddenly dropped to an average of 0.7%. I have restarted...
  5. Will-NYESDigital

    Question Advanced Monitoring - How do graphs work with multicore CPU?

    ‪The version of Obsidian I have is CentOS Linux 7.7.1908 (Core) Hi there, I have a multicore system but would like to know does all CPU work as 300% or 100% for all 3 cores? To do this I went to Advanced Monitoring then selected CPU I am aiming to set thresholds once I have got the answer...
  6. G

    Question Manage CPU and RAM usage

    Hi,I've found this when searching cpu and ram usage in plesk for linux - Plesk Onyx v17.8.11_build1708180613.11 os_Ubuntu 18.04 Limit resources per user But I couldn't find a way to implement it without cmanage or cloudlinux. Any ideas to avoid these extensions and set cpu/ram usage for each...
  7. P

    Resolved How to display CPU usage values in percentage?

    Hello, Currently on my Server Information page it shows my cpu stats in the following format, i am not sure what these numbers indicated, is it possible to display CPU stats in percentage format in Plesk onyx? OS ‪: Ubuntu 14.04.5 LTS‬ Plesk Version : Plesk Onyx Version 17.0.17 Regards, S.M.
  8. M

    Issue Mail server CPU usage = Needs attention?

    How do I identify which email / domain is using high CPU usage ?
  9. O

    Question Plesk PHP Cache ?

    Hello Guys, i would like to ask how i can make my Webspaces on my plesk server faster ? I have change Memory Limit to 512 MB but it also a little bit slow i have hear that i can upgrade the PHP Cache ? Or how i can give the webspaces more cpu Power ? Thank You :)
  10. K

    Apache is consuming a lot of CPU. How do I find the reason?

    I tried to follow the steps in this knowledge base article, but it seems it is not applicable to my Plesk version (12.0). There is no central httpd.conf. I added the configuration lines to /etc/apache2/conf-enabled/security.conf instead. But then going to http://my.server.name/server-status just...
  11. B

    CPU usage always %99 after latest update and how to choose one php version instead of multiple ones?

    Hi, sorry for the title i can't find a correct title to ask about the problem. I have a droplet(4GB ram) with CentOS 6.7 and Plesk 12.5.30 #18 installed from digitalocean. A week ago my server shut down temporarily because of a security breach on one of the sites. After i clean it and the...
  12. R

    High CPU usage PHP-CGI

    Hi, For the last week I'm working on a migrated installation of Word Press on Plesk 12.1.8 The server is always crashing with high CPU usage :( Using Command ps aux --sort=-%cpu | awk 'NR<=10{print $0}' I'm getting the below results USER PID %CPU %MEM VSZ RSS TTY STAT START...
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