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    HIGH CPU Fog Services after update r5029 v6759

    Scheduled Pinned Locked Moved Solved
    FOG Problems
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    • Raymond BellR
      Raymond Bell Testers @Tom Elliott
      last edited by

      @Tom-Elliott said:

      @Raymond-Bell are you disabling the services from booting completely? Then using the rc.local?

      THe rc.local won’t work if it can’t stop the original tasking anyway.

      Yes and i rebooted also

      Raymond Bell
      WiKi: https://wiki.fogproject.org/wiki/index.php/Main_Page

      Tom ElliottT 1 Reply Last reply Reply Quote 0
      • Q
        Quazz Moderator
        last edited by

        I have 11 apache processes running right now, I’m fairly certain it’s normal behavior. Load is under 0.5% total.

        1 Reply Last reply Reply Quote 0
        • Raymond BellR
          Raymond Bell Testers @Wayne Workman
          last edited by

          @Wayne-Workman i will try this i think this is what Tom is talking about

          Raymond Bell
          WiKi: https://wiki.fogproject.org/wiki/index.php/Main_Page

          1 Reply Last reply Reply Quote 0
          • Tom ElliottT
            Tom Elliott @Raymond Bell
            last edited by

            @Raymond-Bell said:

            Too many connections, Message: Check that database is running

            Too many connections, Message: Check that database is running.

            Can you edit the /etc/mysql/my.cnf file and add in the [mysqld] portion (or change) max_connections = 500 then restart the mysql service? (sudo service mysql restart)

            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

            Raymond BellR 1 Reply Last reply Reply Quote 0
            • Raymond BellR
              Raymond Bell Testers @Tom Elliott
              last edited by

              @Tom-Elliott said:

              @Raymond-Bell said:

              Too many connections, Message: Check that database is running

              Too many connections, Message: Check that database is running.

              Can you edit the /etc/mysql/my.cnf file and add in the [mysqld] portion (or change) max_connections = 500 then restart the mysql service? (sudo service mysql restart)

              Yes that helped with the to many connections
              Also this helped on the server but not the nodes

              sudo update-rc.d FOG*service* disable```
              
              Try disabling the FOG Services from starting at boot.
              
              Then, edit the /etc/rc.local file.
              
              Add:
              
              sleep 30
              /etc/init.d/FOGPingHosts stop
              /etc/init.d/FOGScheduler stop
              /etc/init.d/FOGImageReplicator stop
              /etc/init.d/FOGSnapinReplicator stop
              /etc/init.d/FOGMulticastManager stop
              /etc/init.d/FOGPingHosts start
              /etc/init.d/FOGScheduler start
              /etc/init.d/FOGImageReplicator start
              /etc/init.d/FOGSnapinReplicator start
              /etc/init.d/FOGMulticastManager start

              Raymond Bell
              WiKi: https://wiki.fogproject.org/wiki/index.php/Main_Page

              Tom ElliottT 1 Reply Last reply Reply Quote 0
              • B
                boeleke
                last edited by boeleke

                Guys , @Raymond-Bell & @Tom-Elliott

                do you got an patch-solution for this?
                After the patch from this afternoon i also get HIGH CPU services (now got 6777)

                alt text

                Server is freaking out 😞
                Ubuntu 14.04

                1 Reply Last reply Reply Quote 0
                • Tom ElliottT
                  Tom Elliott @Raymond Bell
                  last edited by

                  @Raymond-Bell The rc.local stuff is also on the Storage Nodes?

                  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

                  Raymond BellR 1 Reply Last reply Reply Quote 0
                  • Raymond BellR
                    Raymond Bell Testers @Tom Elliott
                    last edited by

                    @Tom-Elliott said:

                    @Raymond-Bell The rc.local stuff is also on the Storage Nodes?

                    yes i edited rc.local on Storage Nodes also

                    Raymond Bell
                    WiKi: https://wiki.fogproject.org/wiki/index.php/Main_Page

                    Tom ElliottT 1 Reply Last reply Reply Quote 0
                    • Tom ElliottT
                      Tom Elliott @Raymond Bell
                      last edited by

                      @Raymond-Bell Did you restart the services after adding the rc.local? I’m sorry if I’m asking obvious questions, but I really just need to make sure. Current update should help alleviate CPU usage as well though.

                      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

                      Raymond BellR 2 Replies Last reply Reply Quote 0
                      • Raymond BellR
                        Raymond Bell Testers @Tom Elliott
                        last edited by

                        @Tom-Elliott said:

                        @Raymond-Bell Did you restart the services after adding the rc.local? I’m sorry if I’m asking obvious questions, but I really just need to make sure. Current update should help alleviate CPU usage as well though.

                        yes restarted and rebooted and also up to r5038 6777
                        will do it again to make sure

                        Raymond Bell
                        WiKi: https://wiki.fogproject.org/wiki/index.php/Main_Page

                        1 Reply Last reply Reply Quote 0
                        • Raymond BellR
                          Raymond Bell Testers @Tom Elliott
                          last edited by

                          @Tom-Elliott Yes same result after

                          sudo service FOGMulticastManager stop
                          sudo service FOGImageReplicator stop
                          sudo service FOGSnapinReplicator stop
                          sudo service FOGScheduler stop
                          sudo service FOGPingHosts stop
                          
                          
                          sudo update-rc.d FOGMulticastManager disable
                          sudo update-rc.d FOGImageReplicator disable
                          sudo update-rc.d FOGSnapinReplicator disable
                          sudo update-rc.d FOGScheduler disable
                          sudo update-rc.d FOGPingHosts disable
                          
                          sudo service FOGMulticastManager start
                          sudo service FOGImageReplicator start
                          sudo service FOGSnapinReplicator start
                          sudo service FOGScheduler start
                          sudo service FOGPingHosts start
                          
                          top - 10:48:18 up  1:48,  2 users,  load average: 4.14, 4.92, 5.02
                          Tasks: 202 total,   6 running, 196 sleeping,   0 stopped,   0 zombie
                          %Cpu(s): 66.6 us, 32.7 sy,  0.0 ni,  0.0 id,  0.0 wa,  0.0 hi,  0.7 si,  0.0 st
                          KiB Mem:   1014980 total,   966204 used,    48776 free,    19852 buffers
                          KiB Swap:  1037308 total,    12316 used,  1024992 free.   529972 cached Mem
                          
                            PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
                           5970 root      20   0   41920  20164  15184 R  45.6  2.0   0:07.37 FOGSnapinReplic
                           6026 root      20   0   41920  20392  15408 R  41.3  2.0   0:05.85 FOGPingHosts
                           5990 root      20   0   41920  20240  15256 R  39.6  2.0   0:06.34 FOGTaskSchedule
                           5950 root      20   0   41920  20488  15504 R  39.3  2.0   0:06.90 FOGImageReplica
                           5930 root      20   0   41920  20116  15132 R  34.3  2.0   0:05.32 FOGMulticastMan
                           5779 fog       20   0   11284   3900   3128 S   0.3  0.4   0:00.04 sshd
                              1 root      20   0    4732   3788   2548 S   0.0  0.4   0:02.83 init
                              2 root      20   0       0      0      0 S   0.0  0.0   0:00.00 kthreadd
                              3 root      20   0       0      0      0 S   0.0  0.0   0:00.78 ksoftirqd/0
                              5 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/0:0H
                              7 root      20   0       0      0      0 S   0.0  0.0   0:05.27 rcu_sched
                              8 root      20   0       0      0      0 S   0.0  0.0   0:00.00 rcu_bh
                              9 root      rt   0       0      0      0 S   0.0  0.0   0:00.01 migration/0
                             10 root      rt   0       0      0      0 S   0.0  0.0   0:00.01 watchdog/0
                             11 root      rt   0       0      0      0 S   0.0  0.0   0:00.01 watchdog/1
                             12 root      rt   0       0      0      0 S   0.0  0.0   0:00.00 migration/1
                             13 root      20   0       0      0      0 S   0.0  0.0   0:00.12 ksoftirqd/1
                          

                          Raymond Bell
                          WiKi: https://wiki.fogproject.org/wiki/index.php/Main_Page

                          1 Reply Last reply Reply Quote 1
                          • B
                            boeleke
                            last edited by

                            alt text

                            Something weird. After the new update , my CPU performance from my server was going to 10-20%. After a reboot , he started again @100%

                            Pretty anoying

                            1 Reply Last reply Reply Quote 0
                            • B
                              baggar11
                              last edited by

                              I just realized after going through another git pull upgrade that the CPU spike will probably happen every time since the services are reinstalled. Here’s how I fixed my problem again, hopefully in a cleaner way. After upgrading to 6791, it seems to be working so far with a couple reboot tests.

                              Add this to your rc.local. Adjust sleep time based on your setup. My FOG setup is virtual, so 5 seconds seems to work well.

                              sleep 5
                              service FOGImageReplicator restart
                              service FOGMulticastManager restart
                              service FOGPingHosts restart
                              service FOGScheduler restart
                              service FOGSnapinReplicator restart
                              
                              Tom ElliottT 1 Reply Last reply Reply Quote 0
                              • Tom ElliottT
                                Tom Elliott @baggar11
                                last edited by

                                @baggar11, @Raymond-Bell I believe I may have fixed this now.

                                My issue – in theory?

                                I am moving almost EVERYTHING to static form (where I can). This allows me to get items back without having to initiate a whole class object. The problem, the DB has to be available for FOG to read its info. The services are checking for the item before DB is established. This was totally an over site and for that I’m sorry to all.

                                With any luck, this issue will be gone now. Please update and let me know.

                                Thanks.

                                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

                                B 1 Reply Last reply Reply Quote 0
                                • Tom ElliottT
                                  Tom Elliott
                                  last edited by

                                  Why this might affect the CPU? It looks to the DB to get timeout values (and logs). The DB is fully operational, but it’s not initiated by fog meaning the DB is not available. It returns an int of 0 for the sleep time. Put that into an infinite loop, (there’s at least 2 that manage start/restart of the services. It is told to sleep for some period of time already within the looping I’m referring to. However it’s set to 0 (meaning 0 seconds), so it get’s stuck in an infinite loop without ever actually starting.

                                  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
                                  • B
                                    baggar11 @Tom Elliott
                                    last edited by

                                    @Tom-Elliott said:

                                    @baggar11, @Raymond-Bell I believe I may have fixed this now.
                                    With any luck, this issue will be gone now. Please update and let me know.

                                    Just updated to 6795, removed my “restart” lines from rc.local and rebooted. CPU was pegged again. Restarting the services manually brought cpu back down to idle.

                                    Tom ElliottT 1 Reply Last reply Reply Quote 0
                                    • Tom ElliottT
                                      Tom Elliott @baggar11
                                      last edited by

                                      @baggar11 as I understand it, this is still potentially due to starting the services before its dependencies have started. This is different from the pegged on update, I think.

                                      Can you simply try reinstall and see if it’s still happening? Or did update always work, only reboot caused these issues?

                                      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

                                      B 1 Reply Last reply Reply Quote 0
                                      • B
                                        baggar11 @Tom Elliott
                                        last edited by

                                        @Tom-Elliott said:

                                        @baggar11 as I understand it, this is still potentially due to starting the services before its dependencies have started. This is different from the pegged on update, I think.

                                        Can you simply try reinstall and see if it’s still happening? Or did update always work, only reboot caused these issues?

                                        For my upgrades, anything after 6753 would peg my cpu after a reboot. During and after the upgrade process using the install.sh, everything was fine. It’s only after the reboot that the services would max out the cpu. Probably the infinite loop issue as you wrote about below.

                                        Tom ElliottT 1 Reply Last reply Reply Quote 0
                                        • Tom ElliottT
                                          Tom Elliott @baggar11
                                          last edited by

                                          @baggar11 Okay, I’ve added a sleep time of 10 seconds, just in case of these situations where the int returned is 0. We must have at least 1 second sleeptime ( I believe ), and this just isn’t happening.

                                          The only word of caution I can think of, now, is while this might help with CPU Cycles, it will not make the FOG Services actually work properly as from Ubuntu’s standpoint the service is already running. While I could, potentially, come up with a way to restart the services more appropriately, I don’t know where to start at the moment.

                                          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

                                          B Raymond BellR 2 Replies Last reply Reply Quote 0
                                          • B
                                            baggar11 @Tom Elliott
                                            last edited by

                                            @Tom-Elliott said:

                                            @baggar11 Okay, I’ve added a sleep time of 10 seconds, just in case of these situations where the int returned is 0. We must have at least 1 second sleeptime ( I believe ), and this just isn’t happening.

                                            The only word of caution I can think of, now, is while this might help with CPU Cycles, it will not make the FOG Services actually work properly as from Ubuntu’s standpoint the service is already running. While I could, potentially, come up with a way to restart the services more appropriately, I don’t know where to start at the moment.

                                            I’m not a coder so take this with a grain of salt. The following is a similar approach to another open source project I use.

                                            Make a script to run as a cron job every 5 minutes. On 1st boot, the script essentially checks for things like MySQL and network being up, and if all checks out starts the FOG services. All other times it runs, it would really only check for FOG services running and then exit. heh… 🙂

                                            Of course, it’s probably a waste of time as I assume systemd will probably take care of these things more intelligently than regular init and/or upstart. Which Fedora is already using and Ubuntu’s next LTS will be running.

                                            I really appreciate you taking a look into these things Tom. FOG is a very cool project.

                                            B 1 Reply Last reply Reply Quote 0
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