* [PVE-User] native container strange cpu usage behaviour
@ 2021-05-07 12:49 Leandro Roggerone
2021-05-07 13:32 ` Denis PUGNERE
0 siblings, 1 reply; 3+ messages in thread
From: Leandro Roggerone @ 2021-05-07 12:49 UTC (permalink / raw)
To: PVE User List
Hi guys.
I was running unbound dns on native proxmox container.
It is being monitored by librenms.
After some time running without any problem following happened.
First begin receiving snmp notifications regarding "high cpu/core
temperature"
(temperature was ok when checking at proxmox cli using sensor command)
Then I noticed that cpu is at %100 all time on lnms cpu graphs.
SO...
I take out dns queries , stoped unbound and rebooted container , then after
reboot, I have following top output.
top - 12:46:02 up 52 min, 1 user, load average:* 7.93, *5.49, 5.60
Tasks: 15 total, 1 running, 14 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
KiB Mem : 8388608 total, 8141576 free, 39164 used, 207868 buff/cache
KiB Swap: 8388604 total, 8388604 free, 0 used. 8349444 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 20 0 43316 5052 3912 S 0.0 0.1 0:00.13 systemd
39 root 20 0 39092 6660 6372 S 0.0 0.1 0:00.03
systemd-journal
51 root 20 0 41536 3132 2740 S 0.0 0.0 0:00.01
systemd-udevd
57 dbus 20 0 58136 4200 3720 S 0.0 0.1 0:00.01
dbus-daemon
58 root 20 0 26392 2928 2656 S 0.0 0.0 0:00.01
systemd-logind
65 root 20 0 6524 1712 1588 S 0.0 0.0 0:00.00 agetty
68 root 20 0 6524 1640 1520 S 0.0 0.0 0:00.00 agetty
69 root 20 0 6524 1612 1488 S 0.0 0.0 0:00.00 agetty
70 root 20 0 22708 2636 2012 S 0.0 0.0 0:00.00 crond
273 root 20 0 112932 7688 6656 S 0.0 0.1 0:00.01 sshd
275 root 20 0 218560 4996 4180 S 0.0 0.1 0:00.16 rsyslogd
276 root 20 0 124696 15860 10952 S 0.0 0.2 0:01.47 snmpd
291 root 20 0 155340 10596 9240 S 0.0 0.1 0:00.18 sshd
293 root 20 0 11944 3072 2596 S 0.0 0.0 0:00.06 bash
490 root 20 0 56216 3944 3352 R 0.0 0.0 0:00.00 top
So ... Question is , why load average is so high if there is no processes
consuming cpu.
Any idea / feedback about this?
Thanks.
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PVE-User] native container strange cpu usage behaviour
2021-05-07 12:49 [PVE-User] native container strange cpu usage behaviour Leandro Roggerone
@ 2021-05-07 13:32 ` Denis PUGNERE
2021-05-07 15:32 ` Leandro Roggerone
0 siblings, 1 reply; 3+ messages in thread
From: Denis PUGNERE @ 2021-05-07 13:32 UTC (permalink / raw)
To: Proxmox VE user list
Buenos dias Leandeo,
May be look at I/O errors, bad sectors on storage generate I/O wait on CPU without any processor activity.
or another source : NFS server not responding.
Cheers,
Denis
----- Le 7 Mai 21, à 14:49, Leandro Roggerone leandro@tecnetmza.com.ar a écrit :
> Hi guys.
> I was running unbound dns on native proxmox container.
> It is being monitored by librenms.
> After some time running without any problem following happened.
> First begin receiving snmp notifications regarding "high cpu/core
> temperature"
> (temperature was ok when checking at proxmox cli using sensor command)
> Then I noticed that cpu is at %100 all time on lnms cpu graphs.
> SO...
> I take out dns queries , stoped unbound and rebooted container , then after
> reboot, I have following top output.
>
> top - 12:46:02 up 52 min, 1 user, load average:* 7.93, *5.49, 5.60
> Tasks: 15 total, 1 running, 14 sleeping, 0 stopped, 0 zombie
> %Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> KiB Mem : 8388608 total, 8141576 free, 39164 used, 207868 buff/cache
> KiB Swap: 8388604 total, 8388604 free, 0 used. 8349444 avail Mem
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 1 root 20 0 43316 5052 3912 S 0.0 0.1 0:00.13 systemd
> 39 root 20 0 39092 6660 6372 S 0.0 0.1 0:00.03
> systemd-journal
> 51 root 20 0 41536 3132 2740 S 0.0 0.0 0:00.01
> systemd-udevd
> 57 dbus 20 0 58136 4200 3720 S 0.0 0.1 0:00.01
> dbus-daemon
> 58 root 20 0 26392 2928 2656 S 0.0 0.0 0:00.01
> systemd-logind
> 65 root 20 0 6524 1712 1588 S 0.0 0.0 0:00.00 agetty
> 68 root 20 0 6524 1640 1520 S 0.0 0.0 0:00.00 agetty
> 69 root 20 0 6524 1612 1488 S 0.0 0.0 0:00.00 agetty
> 70 root 20 0 22708 2636 2012 S 0.0 0.0 0:00.00 crond
> 273 root 20 0 112932 7688 6656 S 0.0 0.1 0:00.01 sshd
> 275 root 20 0 218560 4996 4180 S 0.0 0.1 0:00.16 rsyslogd
> 276 root 20 0 124696 15860 10952 S 0.0 0.2 0:01.47 snmpd
> 291 root 20 0 155340 10596 9240 S 0.0 0.1 0:00.18 sshd
> 293 root 20 0 11944 3072 2596 S 0.0 0.0 0:00.06 bash
> 490 root 20 0 56216 3944 3352 R 0.0 0.0 0:00.00 top
>
>
> So ... Question is , why load average is so high if there is no processes
> consuming cpu.
> Any idea / feedback about this?
> Thanks.
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> Libre
> de virus. www.avast.com
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> _______________________________________________
> pve-user mailing list
> pve-user@lists.proxmox.com
> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PVE-User] native container strange cpu usage behaviour
2021-05-07 13:32 ` Denis PUGNERE
@ 2021-05-07 15:32 ` Leandro Roggerone
0 siblings, 0 replies; 3+ messages in thread
From: Leandro Roggerone @ 2021-05-07 15:32 UTC (permalink / raw)
To: Proxmox VE user list
thanks Denis ,
From same top command , I can notice that server is not blocked , take a
look to:
%Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
In my opinion the server is not working at all.
Im missing something here ?
Strange thing is that cpu is still high after rebooting.
Do you think it is a common issue on proxmox containers ? perhaps related
to containers architecture , should I consider move my unbound to VM ?
Thanks.
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Libre
de virus. www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
El vie, 7 may 2021 a las 11:26, Denis PUGNERE (<d.pugnere@ipnl.in2p3.fr>)
escribió:
>
> Buenos dias Leandeo,
>
> May be look at I/O errors, bad sectors on storage generate I/O wait on CPU
> without any processor activity.
> or another source : NFS server not responding.
>
> Cheers,
> Denis
>
> ----- Le 7 Mai 21, à 14:49, Leandro Roggerone leandro@tecnetmza.com.ar a
> écrit :
>
> > Hi guys.
> > I was running unbound dns on native proxmox container.
> > It is being monitored by librenms.
> > After some time running without any problem following happened.
> > First begin receiving snmp notifications regarding "high cpu/core
> > temperature"
> > (temperature was ok when checking at proxmox cli using sensor command)
> > Then I noticed that cpu is at %100 all time on lnms cpu graphs.
> > SO...
> > I take out dns queries , stoped unbound and rebooted container , then
> after
> > reboot, I have following top output.
> >
> > top - 12:46:02 up 52 min, 1 user, load average:* 7.93, *5.49, 5.60
> > Tasks: 15 total, 1 running, 14 sleeping, 0 stopped, 0 zombie
> > %Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
> > 0.0 st
> > KiB Mem : 8388608 total, 8141576 free, 39164 used, 207868
> buff/cache
> > KiB Swap: 8388604 total, 8388604 free, 0 used. 8349444 avail
> Mem
> >
> > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
> COMMAND
> > 1 root 20 0 43316 5052 3912 S 0.0 0.1 0:00.13
> systemd
> > 39 root 20 0 39092 6660 6372 S 0.0 0.1 0:00.03
> > systemd-journal
> > 51 root 20 0 41536 3132 2740 S 0.0 0.0 0:00.01
> > systemd-udevd
> > 57 dbus 20 0 58136 4200 3720 S 0.0 0.1 0:00.01
> > dbus-daemon
> > 58 root 20 0 26392 2928 2656 S 0.0 0.0 0:00.01
> > systemd-logind
> > 65 root 20 0 6524 1712 1588 S 0.0 0.0 0:00.00 agetty
> > 68 root 20 0 6524 1640 1520 S 0.0 0.0 0:00.00 agetty
> > 69 root 20 0 6524 1612 1488 S 0.0 0.0 0:00.00 agetty
> > 70 root 20 0 22708 2636 2012 S 0.0 0.0 0:00.00 crond
> > 273 root 20 0 112932 7688 6656 S 0.0 0.1 0:00.01 sshd
> > 275 root 20 0 218560 4996 4180 S 0.0 0.1 0:00.16
> rsyslogd
> > 276 root 20 0 124696 15860 10952 S 0.0 0.2 0:01.47 snmpd
> > 291 root 20 0 155340 10596 9240 S 0.0 0.1 0:00.18 sshd
> > 293 root 20 0 11944 3072 2596 S 0.0 0.0 0:00.06 bash
> > 490 root 20 0 56216 3944 3352 R 0.0 0.0 0:00.00 top
> >
> >
> > So ... Question is , why load average is so high if there is no processes
> > consuming cpu.
> > Any idea / feedback about this?
> > Thanks.
> >
> > <
> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
> >
> > Libre
> > de virus. www.avast.com
> > <
> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
> >
> > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> > _______________________________________________
> > pve-user mailing list
> > pve-user@lists.proxmox.com
> > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>
> _______________________________________________
> pve-user mailing list
> pve-user@lists.proxmox.com
> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>
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2021-05-07 13:32 ` Denis PUGNERE
2021-05-07 15:32 ` Leandro Roggerone
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