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Around 100% cpu usage constantly

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  • T
    Tom Elliott
    last edited by May 31, 2016, 11:15 AM

    I’ve added some code in hopes to prevent runaway services such as this. With any luck the 100% cpu do to FOG services will be no more.

    The Defaults, in case of issues:

    FOGImageReplicator = 600 seconds (10 Minutes)
    FOGSnapinReplicator = 600 seconds (10 Minutes)
    FOGPingHosts = 300 seconds (5 Minutes)
    FOGScheduler = 60 seconds (1 Minute)
    FOGMulticastManager = 10 seconds
    

    The writing to log files isn’t as important as the timing. It’s the timing that’s causing the run away CPU cycles as they’re running infinitely. Without a sleep to slow it all down, the services will keep doing work without a break, causing the spikes you’re describing.

    Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

    Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

    Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

    C 1 Reply Last reply May 31, 2016, 4:03 PM Reply Quote 0
    • C
      coco65 @Tom Elliott
      last edited by May 31, 2016, 4:03 PM

      @Tom-Elliott

      Just updated both the fog-server and the fog-node to 7945 on debian 8 both. Nothing has changed I am afraid. The fog server runs fine but the storage node is at a constant 100% processor load. The 4 FOG services (ImageReplicator etc) keep using every processor cycle they can get.

      T 1 Reply Last reply May 31, 2016, 4:27 PM Reply Quote 0
      • T
        Tom Elliott @coco65
        last edited by May 31, 2016, 4:27 PM

        @coco65 Run the script as it was designed earlier.

        service FOGMulticastManager stop && sleep 5 && service FOGMulticastManager start
        service FOGPingHosts stop && sleep 5 && service FOGPingHosts start
        service FOGImageReplicator stop && sleep 5 && service FOGImageReplicator start
        service FOGSnapinReplicator stop && sleep 5 && service FOGSnapinReplicator start
        service FOGScheduler stop && sleep 5 && service FOGScheduler start
        

        OR:

        systemctl stop FOGMulticastManager && sleep 5 && systemctl start FOGMulticastManager
        systemctl stop FOGPingHosts && sleep 5 && systemctl start FOGPingHosts
        systemctl stop FOGImageReplicator && sleep 5 && systemctl start FOGImageReplicator
        systemctl stop FOGSnapinReplicator && sleep 5 && systemctl start FOGSnapinReplicator
        systemctl stop FOGScheduler && sleep 5 && systemctl start FOGScheduler
        

        This is going to make sure the services have enough time to restart. The Installer appears to not satisfy the “timing” properly.

        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

        Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

        Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

        C 1 Reply Last reply May 31, 2016, 6:32 PM Reply Quote 0
        • C
          coco65 @Tom Elliott
          last edited by May 31, 2016, 6:32 PM

          @Tom-Elliott : Thank you that works (the second version with systemctrl)

          1 Reply Last reply Reply Quote 0
          • T
            Tom Elliott
            last edited by May 31, 2016, 9:21 PM

            That’s why I post both. I have no idea what type your system is going to use so I just brute force them all.

            In either case, this shouldn’t be a problem even on subsequent updates now.

            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

            Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

            Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

            1 Reply Last reply Reply Quote 0
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