From: Leandro Roggerone <leandro@tecnetmza.com.ar>
To: Proxmox VE user list <pve-user@lists.proxmox.com>
Subject: Re: [PVE-User] native container strange cpu usage behaviour
Date: Fri, 7 May 2021 12:32:42 -0300 [thread overview]
Message-ID: <CALt2oz7_M+Lwr14BhnWuiGhv_--bS=AT8V40Yfg7Yn-zafuvTw@mail.gmail.com> (raw)
In-Reply-To: <1812088100.247408784.1620394362636.JavaMail.zimbra@ipnl.in2p3.fr>
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.
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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.
> >
> > <
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> > Libre
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prev parent reply other threads:[~2021-05-07 15:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-07 12:49 Leandro Roggerone
2021-05-07 13:32 ` Denis PUGNERE
2021-05-07 15:32 ` Leandro Roggerone [this message]
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