HIGH CPU Fog Services after update r5029 v6759

[Tom Elliott]

@Raymond-Bell Just going to guess but the Storage nodes, currently, are unable to talk with the main FOG Server?

[Raymond Bell]

@Tom-Elliott said:

@Raymond-Bell Just going to guess but the Storage nodes, currently, are unable to talk with the main FOG Server?

Editing the rc.local file now will let you know after reboot

[Raymond Bell]

@Tom-Elliott
After editing rc.local and rebooting all i got to web sign in and got this

Database Schema Installer / Updater
But i did not get this during set-up to the latest SVN

I click install and get ’

Install/Upgrade Successful!

The following errors occured

Update ID: 1 - 0

Database Error:

Too many connections, Message: Check that database is running

Database SQL:

CREATE DATABASE fog

Update ID: 1 - 1

Database Error:

Too many connections, Message: Check that database is running

Database SQL:

CREATE TABLE `fog`.`groupMembers` ( `gmID` int(11) NOT NULL auto_increment, `gmHostID` int(11) NOT NULL, `gmGroupID` int(11) NOT NULL, PRIMARY KEY (`gmID`),
KEY `new_index` (`gmHostID`),
KEY `new_index1` (`gmGroupID`) ) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC

But second time login just fine and server is seeing nodes

After reboot and rc.local edit

Server

top - 07:58:10 up 8 min,  2 users,  load average: 127.49, 100.92, 50.49
Tasks: 360 total,  36 running, 324 sleeping,   0 stopped,   0 zombie
%Cpu(s): 65.6 us, 33.3 sy,  0.0 ni,  0.0 id,  0.0 wa,  0.0 hi,  1.1 si,  0.0 st
KiB Mem:   4355692 total,  1476112 used,  2879580 free,    95208 buffers
KiB Swap:  1046524 total,        0 used,  1046524 free.   496208 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
 1363 root      20   0   39820  20000  15036 R  89.2  0.5   7:10.67 FOGSnapinReplic
 1399 root      20   0   39820  19996  15024 S  84.5  0.5   7:10.53 FOGTaskSchedule
 1254 mysql     20   0  363320  75940   9864 S  22.5  1.7   1:58.49 mysqld
 3441 www-data  20   0  108088  15672  10396 D   9.6  0.4   0:01.11 apache2
 3052 www-data  20   0  110464  18732  12840 R   8.9  0.4   0:06.03 apache2
 2983 www-data  20   0  110820  18828  12840 R   8.3  0.4   0:05.70 apache2
 3405 fog       20   0    5692   2916   2344 R   6.6  0.1   0:01.32 top
 3523 www-data  20   0  108232  15724  10312 R   6.6  0.4   0:00.72 apache2
 3060 www-data  20   0  111052  19272  12792 R   6.3  0.4   0:05.67 apache2
 3541 www-data  20   0  107928  15280  10012 R   5.6  0.4   0:00.45 apache2

SN 1

top - 07:59:33 up 9 min,  2 users,  load average: 5.07, 4.46, 2.47
Tasks: 221 total,   7 running, 214 sleeping,   0 stopped,   0 zombie
%Cpu(s): 69.8 us, 29.9 sy,  0.0 ni,  0.0 id,  0.0 wa,  0.0 hi,  0.3 si,  0.0 st
KiB Mem:   7735460 total,   881520 used,  6853940 free,    79604 buffers
KiB Swap:  7828476 total,        0 used,  7828476 free.   405380 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
 2643 root      20   0   39948  19864  14908 R  86.8  0.3   7:11.84 FOGImageReplica
 2679 root      20   0   39948  20068  15116 R  86.8  0.3   7:09.10 FOGMulticastMan
 2609 root      20   0   39948  19848  14888 R  76.8  0.3   7:09.03 FOGPingHosts
 2626 root      20   0   39948  19888  14928 R  74.8  0.3   7:09.72 FOGTaskSchedule
 2662 root      20   0   39948  19984  15024 R  74.1  0.3   7:11.40 FOGSnapinReplic
   41 root      20   0       0      0      0 R   0.3  0.0   0:00.17 kworker/0:1
 2845 fog       20   0    5544   2752   2344 R   0.3  0.0   0:00.35 top
    1 root      20   0    4740   3888   2616 S   0.0  0.1   0:01.44 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   0:00.00 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   0:00.29 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   0:00.00 migration/0
   10 root      rt   0       0      0      0 S   0.0  0.0   0:00.00 watchdog/0

SN 2

top - 08:00:12 up 10 min,  3 users,  load average: 5.12, 4.54, 2.58
Tasks: 225 total,   7 running, 218 sleeping,   0 stopped,   0 zombie
%Cpu(s): 72.2 us, 27.8 sy,  0.0 ni,  0.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem:   7735460 total,   886896 used,  6848564 free,    79612 buffers
KiB Swap:  7828476 total,        0 used,  7828476 free.   405392 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
 2662 root      20   0   39948  19984  15024 R  88.8  0.3   7:41.96 FOGSnapinReplic
 2643 root      20   0   39948  19864  14908 R  88.4  0.3   7:41.97 FOGImageReplica
 2626 root      20   0   39948  19888  14928 R  76.6  0.3   7:41.53 FOGTaskSchedule
 2609 root      20   0   39948  19848  14888 R  70.5  0.3   7:40.83 FOGPingHosts
 2679 root      20   0   39948  20068  15116 R  69.7  0.3   7:40.03 FOGMulticastMan
 2308 root      20   0   53452   6756   5804 S   5.7  0.1   0:00.33 udisksd
 2845 fog       20   0    5544   2876   2344 S   0.4  0.0   0:00.45 top
 2901 fog       20   0    5688   2768   2344 R   0.4  0.0   0:00.01 top
    1 root      20   0    4740   3888   2616 S   0.0  0.1   0:01.44 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   0:00.00 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   0:00.31 rcu_sched

[Raymond Bell]

Still don’t understand why i have so many apache2 services running on the server either…

[Tom Elliott]

@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.

[Raymond Bell]

@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

[Quazz]

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

[Raymond Bell]

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

[Tom Elliott]

@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)

[Raymond Bell]

@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

[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)

Server is freaking out
Ubuntu 14.04

[Tom Elliott]

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

[Raymond Bell]

@Tom-Elliott said:

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

yes i edited rc.local on Storage Nodes also

[Tom Elliott]

@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.

[Raymond Bell]

@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]

@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

[boeleke]

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

[baggar11]

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 Elliott]

@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.

[Tom Elliott]

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.