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    System Lockups with ScreenConnect 6.0.11622.6115 on CentOS 7

    Scheduled Pinned Locked Moved IT Discussion
    screenconnectconnectwiselinuxcentoscentos 7
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    • gjacobseG
      gjacobse
      last edited by

      I don't think it shows in the last few screen shots,.. but found a PID what was running for 4hr 54m,.. Talking to @scottalanmiller came up on killing that process to see if it would release memory and it didn't.

      But, in that, I found another similar process that had been running for more than 10 hours, so I killed that one.

      Memory is now down to 325M.

      0_1481927185134_2016-12-16 17_26_06-gene@dny-lnx-sc__opt_screenconnect_App_Data.png

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      • gjacobseG
        gjacobse
        last edited by

        Tag 1 is the pid that seemed to have been the lynch pin

        0_1481927405942_lAe4PgA.png

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        • scottalanmillerS
          scottalanmiller
          last edited by

          So what is routinely kicking off that problem child, though?

          1 Reply Last reply Reply Quote 0
          • gjacobseG
            gjacobse
            last edited by

            Sorted by Time:

            0_1481927591157_2016-12-16 17_32_35-gene@dny-lnx-sc__opt_screenconnect_App_Data.png

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            • gjacobseG
              gjacobse
              last edited by

              Starting to look for differences since the DB Maint should have run about an hour ago.

              ]$ cd /opt/screenconnect//App_Data/
              [ App_Data]$ ls -l
              total 101304
              -rw-r--r--  1 root root      454 Aug 25 19:15 ExtensionConfiguration.xml
              drwxr-xr-x  2 root root     4096 Nov  8 09:44 Helper
              -rw-r--r--  1 root root      654 Aug 25 19:15 License.xml
              -rw-r--r--  1 root root    23699 Dec 16 11:26 Role.xml
              -rw-r--r--  1 root root 25210880 Dec 17 01:59 Session.db
              -rw-r--r--  1 root root    32768 Dec 17 02:04 Session.db-shm
              -rw-r--r--  1 root root 78403632 Dec 17 02:04 Session.db-wal
              -rw-r--r--  1 root root     4030 Oct 25 08:55 SessionEventTrigger.xml
              -rw-r--r--  1 root root     5178 Dec  2 08:13 SessionGroup.xml
              drwxr-xr-x 14 root root     4096 Dec 12 12:55 Toolbox
              -rw-r--r--  1 root root        0 Dec 14 17:24 User.cd60043d-556e-4b23-9ef1-9959e6cea952.xml
              -rw-r--r--  1 root root    21908 Dec 16 17:24 User.xml
              
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              • gjacobseG
                gjacobse
                last edited by

                ]$ sar
                Linux 3.10.0-327.10.1.el7.x86_64 (dny-lnx-sc)   12/17/2016      _x86_64_        (2 CPU)
                
                12:00:02 AM     CPU     %user     %nice   %system   %iowait    %steal     %idle
                12:10:01 AM     all      1.05      0.00      0.24      0.06      0.55     98.10
                12:20:02 AM     all      1.16      0.00      0.22      0.04      0.49     98.09
                12:30:01 AM     all      0.84      0.00      0.20      0.04      0.40     98.53
                12:40:01 AM     all      1.05      0.00      0.19      0.05      0.40     98.31
                12:50:01 AM     all      0.83      0.00      0.19      0.04      0.42     98.52
                01:00:01 AM     all      1.06      0.00      0.19      0.04      0.37     98.34
                01:10:01 AM     all      1.03      0.00      0.22      0.04      0.46     98.25
                01:20:02 AM     all      1.16      0.00      0.20      0.06      0.47     98.12
                01:30:01 AM     all      0.96      0.00      0.20      0.04      0.52     98.28
                01:40:01 AM     all      0.97      0.00      0.19      0.05      0.44     98.35
                01:50:01 AM     all      0.86      0.00      0.16      0.04      0.44     98.51
                02:00:01 AM     all      1.00      0.00      0.18      0.05      0.43     98.34
                Average:        all      1.00      0.00      0.20      0.04      0.45     98.31
                
                1 Reply Last reply Reply Quote 0
                • gjacobseG
                  gjacobse
                  last edited by

                  0_1481958506678_2016-12-17 02_08_02-gene@dny-lnx-sc__opt_screenconnect_App_Data.png

                  1 Reply Last reply Reply Quote 0
                  • scottalanmillerS
                    scottalanmiller
                    last edited by

                    Maybe reboot post maintenance so that we know that we have a fresh, clean system and see what it does.

                    gjacobseG 1 Reply Last reply Reply Quote 0
                    • gjacobseG
                      gjacobse
                      last edited by

                      What I see right off compairing:

                      https://mangolassi.it/topic/11869/system-lockups-with-screenconnect-6-0-11622-6115-on-centos-7/33

                      https://mangolassi.it/topic/11869/system-lockups-with-screenconnect-6-0-11622-6115-on-centos-7/56

                      is that Session.db is larger, but Session.db-shm is smaller.

                      1 Reply Last reply Reply Quote 0
                      • gjacobseG
                        gjacobse @scottalanmiller
                        last edited by

                        @scottalanmiller said in System Lockups with ScreenConnect 6.0.11622.6115 on CentOS 7:

                        Maybe reboot post maintenance so that we know that we have a fresh, clean system and see what it does.

                        Done... awaiting system to come back online.

                        1 Reply Last reply Reply Quote 0
                        • gjacobseG
                          gjacobse
                          last edited by

                          Session-db.wal went from 78,403,632 to 4,128,272 !!!

                           App_Data]$ ls -l
                          total 28836
                          -rw-r--r--  1 root root      454 Aug 25 19:15 ExtensionConfiguration.xml
                          drwxr-xr-x  2 root root     4096 Nov  8 09:44 Helper
                          -rw-r--r--  1 root root      654 Aug 25 19:15 License.xml
                          -rw-r--r--  1 root root    23699 Dec 16 11:26 Role.xml
                          -rw-r--r--  1 root root 25284608 Dec 17 02:17 Session.db
                          -rw-r--r--  1 root root    32768 Dec 17 02:17 Session.db-shm
                          -rw-r--r--  1 root root  4128272 Dec 17 02:17 Session.db-wal
                          -rw-r--r--  1 root root     4030 Oct 25 08:55 SessionEventTrigger.xml
                          -rw-r--r--  1 root root     5178 Dec  2 08:13 SessionGroup.xml
                          drwxr-xr-x 14 root root     4096 Dec 12 12:55 Toolbox
                          -rw-r--r--  1 root root        0 Dec 14 17:24 User.cd60043d-556e-4b23-9ef1-9959e                                                                                                                      6cea952.xml
                          -rw-r--r--  1 root root    21908 Dec 16 17:24 User.xml
                          
                          1 Reply Last reply Reply Quote 0
                          • scottalanmillerS
                            scottalanmiller
                            last edited by

                            That's quite a change.

                            1 Reply Last reply Reply Quote 0
                            • gjacobseG
                              gjacobse
                              last edited by

                              No heavy CPU or memory on restart either.

                              0_1481959267040_2016-12-17 02_20_32-gene@dny-lnx-sc__opt_screenconnect_App_Data.png

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                              • gjacobseG
                                gjacobse
                                last edited by

                                Of note - the only 'difference' was the selection of Maintenance Plan Actions:

                                Previously only the Delete Ended Support Sessions and Compact Database Files were selected. The boxed items were not.

                                0_1481959383412_2016-12-17 02_22_03-NTG Remote Portal.png

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                                • gjacobseG
                                  gjacobse
                                  last edited by gjacobse

                                  -rw-r--r-- 1 root root 244,855,752 Dec 14 16:25 Session.db-wal
                                  
                                  -rw-r--r--  1 root root 78,403,632 Dec 16 08:33 Session.db-wal
                                  
                                  rw-r--r--  1 root root  4,128,272 Dec 17 02:17 Session.db-wal
                                  

                                  Going back and doing some comparisons and noticed this -

                                  (commas added for 'dramatic effect'

                                  gjacobseG 1 Reply Last reply Reply Quote 0
                                  • gjacobseG
                                    gjacobse
                                    last edited by

                                    SAR
                                    r this morning - near as I can tell, no one is on SC currently.

                                    $ uptime
                                     10:36:37 up 22:38,  1 user,  load average: 0.05, 0.17, 0.22
                                    [ ]$ sar
                                    Linux 3.10.0-327.10.1.el7.x86_64 ( )   12/18/2016      _x86_64_        (1 CPU)
                                    
                                    12:00:01 AM     CPU     %user     %nice   %system   %iowait    %steal     %idle
                                    12:10:01 AM     all      1.89      0.00      0.36      0.09      0.06     97.60
                                    12:20:01 AM     all      1.03      0.00      0.33      0.03      0.03     98.57
                                    12:30:01 AM     all      1.83      0.00      0.36      0.07      0.05     97.68
                                    12:40:01 AM     all      0.89      0.00      0.29      0.03      0.05     98.73
                                    12:50:01 AM     all      1.68      0.00      0.35      0.08      0.04     97.85
                                    01:00:01 AM     all      1.03      0.00      0.34      0.07      0.03     98.54
                                    01:10:01 AM     all      2.30      0.00      0.45      0.13      0.06     97.05
                                    01:20:01 AM     all      0.79      0.00      0.29      0.05      0.03     98.84
                                    01:30:01 AM     all      1.82      0.00      0.36      0.09      0.08     97.65
                                    01:40:01 AM     all      0.71      0.00      0.28      0.02      0.03     98.97
                                    01:50:01 AM     all      1.78      0.00      0.35      0.11      0.07     97.70
                                    02:00:01 AM     all      0.74      0.00      0.29      0.06      0.03     98.88
                                    02:10:02 AM     all      1.76      0.00      0.36      0.09      0.07     97.72
                                    02:20:01 AM     all      1.16      0.00      0.33      0.04      0.04     98.43
                                    02:30:01 AM     all      1.90      0.00      0.35      0.08      0.11     97.56
                                    02:40:01 AM     all      0.76      0.00      0.28      0.02      0.05     98.88
                                    02:50:01 AM     all      1.80      0.00      0.36      0.24      0.08     97.52
                                    03:00:01 AM     all      0.69      0.00      0.28      0.03      0.05     98.95
                                    03:10:01 AM     all      1.86      0.02      0.36      0.08      0.07     97.61
                                    03:20:01 AM     all      0.82      0.00      0.32      0.02      0.04     98.79
                                    03:30:01 AM     all      1.84      0.00      0.34      0.09      0.05     97.67
                                    03:40:01 AM     all      0.74      0.00      0.28      0.03      0.04     98.91
                                    03:50:01 AM     all      1.81      0.00      0.35      0.09      0.06     97.70
                                    04:00:01 AM     all      0.82      0.00      0.29      0.03      0.04     98.82
                                    04:10:01 AM     all      2.42      0.00      0.44      0.09      0.10     96.96
                                    04:20:01 AM     all      0.77      0.00      0.29      0.03      0.05     98.86
                                    04:30:01 AM     all      1.84      0.00      0.37      0.09      0.10     97.61
                                    04:40:01 AM     all      0.75      0.00      0.30      0.06      0.06     98.83
                                    04:50:01 AM     all      1.84      0.00      0.36      0.09      0.08     97.63
                                    05:00:01 AM     all      0.81      0.00      0.29      0.02      0.05     98.83
                                    05:10:01 AM     all      2.17      0.00      0.43      0.09      0.11     97.21
                                    05:20:01 AM     all      0.85      0.00      0.29      0.16      0.04     98.67
                                    05:30:01 AM     all      1.79      0.00      0.38      0.09      0.07     97.67
                                    05:40:01 AM     all      0.86      0.00      0.32      0.03      0.08     98.72
                                    05:50:01 AM     all      1.94      0.00      0.46      0.16      0.12     97.32
                                    06:00:01 AM     all      0.80      0.00      0.33      0.02      0.05     98.80
                                    06:10:01 AM     all      1.79      0.00      0.37      0.33      0.08     97.42
                                    06:20:01 AM     all      0.93      0.00      0.34      0.02      0.09     98.62
                                    06:30:01 AM     all      1.82      0.00      0.36      0.08      0.09     97.65
                                    06:40:02 AM     all      0.76      0.00      0.29      0.03      0.06     98.87
                                    06:50:01 AM     all      1.87      0.00      0.37      0.09      0.11     97.56
                                    07:00:01 AM     all      0.82      0.00      0.30      0.03      0.05     98.79
                                    07:10:02 AM     all      2.23      0.00      0.46      0.08      0.15     97.09
                                    07:20:01 AM     all      0.82      0.00      0.32      0.03      0.09     98.74
                                    07:30:01 AM     all      2.84      0.00      0.75      0.09      0.12     96.20
                                    07:40:01 AM     all      3.05      0.00      0.30      0.03      0.09     96.54
                                    07:50:01 AM     all     24.73      0.32      0.62      0.12      0.15     74.07
                                    08:00:01 AM     all      6.52      0.00      0.34      0.04      0.07     93.03
                                    
                                    08:00:01 AM     CPU     %user     %nice   %system   %iowait    %steal     %idle
                                    08:10:01 AM     all     25.18      0.00      0.58      0.07      0.16     74.01
                                    08:20:01 AM     all      7.17      0.00      0.34      0.03      0.10     92.37
                                    08:30:01 AM     all     25.70      0.00      0.52      0.12      0.23     73.42
                                    08:40:01 AM     all      6.75      0.00      0.34      0.03      0.13     92.75
                                    08:50:01 AM     all     24.80      0.00      0.50      0.07      0.17     74.45
                                    09:00:01 AM     all      7.47      0.00      0.34      0.02      0.08     92.08
                                    09:10:01 AM     all     28.54      0.00      0.63      0.09      0.48     70.27
                                    09:20:01 AM     all      7.15      0.00      0.36      0.17      0.17     92.16
                                    09:30:01 AM     all     26.84      0.00      0.54      0.09      0.34     72.20
                                    09:40:01 AM     all      8.76      0.00      0.36      0.07      0.27     90.54
                                    09:50:01 AM     all     26.93      0.00      0.53      0.07      0.31     72.15
                                    10:00:01 AM     all      8.60      0.00      0.35      0.03      0.18     90.84
                                    10:10:01 AM     all     28.29      0.00      0.63      0.08      0.47     70.53
                                    10:20:01 AM     all      9.19      0.00      0.33      0.08      0.28     90.12
                                    10:30:01 AM     all     27.27      0.00      0.52      0.08      0.32     71.81
                                    Average:        all      5.79      0.01      0.38      0.07      0.11     93.64
                                    
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                                    • gjacobseG
                                      gjacobse
                                      last edited by

                                      0_1482075539973_2016-12-18 10_38_39-gene@dny-lnx-sc_~.png

                                      1 Reply Last reply Reply Quote 0
                                      • gjacobseG
                                        gjacobse
                                        last edited by

                                        ~]$ cd /opt/screenconnect//App_Data/
                                        [gene@dny-lnx-sc App_Data]$ ls -l
                                        total 49048
                                        -rw-r--r--  1 root root      454 Aug 25 19:15 ExtensionConfiguration.xml
                                        drwxr-xr-x  2 root root     4096 Nov  8 09:44 Helper
                                        -rw-r--r--  1 root root      654 Aug 25 19:15 License.xml
                                        -rw-r--r--  1 root root    23699 Dec 16 11:26 Role.xml
                                        -rw-r--r--  1 root root 24989696 Dec 18 10:26 Session.db
                                        -rw-r--r--  1 root root    65536 Dec 18 10:39 Session.db-shm
                                        -rw-r--r--  1 root root 25082592 Dec 18 10:39 Session.db-wal
                                        -rw-r--r--  1 root root     4030 Oct 25 08:55 SessionEventTrigger.xml
                                        -rw-r--r--  1 root root     5178 Dec  2 08:13 SessionGroup.xml
                                        drwxr-xr-x 14 root root     4096 Dec 12 12:55 Toolbox
                                        -rw-r--r--  1 root root        0 Dec 14 17:24 User.cd60043d-556e-4b23-9ef1-9959e6cea952.xml
                                        -rw-r--r--  1 root root    21908 Dec 17 10:41 User.xml
                                        
                                        
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                                        • gjacobseG
                                          gjacobse @gjacobse
                                          last edited by gjacobse

                                          @gjacobse said in System Lockups with ScreenConnect 6.0.11622.6115 on CentOS 7:

                                          -rw-r--r-- 1 root root 244,855,752 Dec 14 16:25 Session.db-wal
                                          
                                          -rw-r--r--  1 root root 78,403,632 Dec 16 08:33 Session.db-wal
                                          
                                          rw-r--r--  1 root root  4,128,272 Dec 17 02:17 Session.db-wal
                                          

                                          Going back and doing some comparisons and noticed this -

                                          (commas added for 'dramatic effect'

                                          -rw-r--r--  1 root root 25,082,592 Dec 18 10:39 Session.db-wal
                                          
                                          gjacobseG 1 Reply Last reply Reply Quote 0
                                          • scottalanmillerS
                                            scottalanmiller
                                            last edited by

                                            So it is climbing back up and fast. Show that to support.

                                            gjacobseG 1 Reply Last reply Reply Quote 0
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