[Berlin-wireless] 90% CPU-nutzung durch tunneldigger bei 40Mbit/s (freifunk-gw01.in-berlin.de)

[Perry]

I don't see any problems with the server.  I'm currently running

sudo journalctl -u tunneldigger.service -f

and I'm not seeing a node trying to repeatedly connect, which was the
problem last time.  In the last hour, 5 tunnel connections have changed
their MTU.  Other than that, there's really nothing to report.

While runing htop, I see that openvpn is constantly at the top of the
list, and every once in a while there is a spike from the
tunneldiger-broker.

Greets,
Perry

On 4/14/21 11:02 PM, Sven Roederer wrote:
> Perry,
> 
> seems that your detectiv skills are required again.
> As mentioned in my other post I had a short serviec stop on the machine and 
> saw the same problem again (Load of ~1 with traffic around 20MBit/s caused by 
> a python-process). 
> The load seems a bit less than on the previous event, according to the monitor 
> [1], but stil way to much.
> 
> 
> Sven
> 
> 1 - http://monitor.berlin.freifunk.net/detail.php?p=load&t=load&h=freifunk-gw01&s=31536000&x=800&y=350
> 
> Am Montag, 1. März 2021, 20:37:39 CEST schrieb Perry:
>> Hello,
>>
>> It took some detective work, and a bit of guessing, and I found the node
>> which was causing the high load.  That node has now been updated with
>> falter and is no longer constantly reconnecting.
>>
>> http://monitor.berlin.freifunk.net/detail.php?p=load&t=load&h=freifunk-gw01&
>> s=28800&x=800&y=350
>>
>> P
>>
>> On 3/1/21 12:01 AM, Sven Roederer wrote:
>>> Namt,
>>>
>>> wo ich jetzt grad auf dem Rechner war, wundert mich folgendes:
>>>
>>> bei 40MBit/s via tunneldigger ist die CPU-Nutzung bei 90%. Der Rechner hat
>>> einen "Intel Xeon Processor (Skylake, IBRS) @2.2GHz".
>>>
>>> Find ich überraschend viel, ist das Normal?
>>>
>>>
>>> http://monitor.berlin.freifunk.net/host.php?h=freifunk-gw01
>>>
>>>
>>> GRuss Sven
>>>
> 
> 
> 
> _______________________________________________
> Berlin mailing list
> Berlin at berlin.freifunk.net
> http://lists.berlin.freifunk.net/cgi-bin/mailman/listinfo/berlin
> Diese Mailingliste besitzt ein ffentlich einsehbares Archiv
>