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RE: [perfsonar-user] pScheduler latency task behind NAT


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  • From: Ignacio Peluaga Lozada <>
  • To: Mark Feit <>, "" <>
  • Subject: RE: [perfsonar-user] pScheduler latency task behind NAT
  • Date: Mon, 9 Nov 2020 17:31:40 +0000
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Hi Mark,

thanks a lot, that option will come in handy for us.

I checked the Github issue and saw this feature will be part of the next
feature release, when can we expect that?

Thanks.

Regards,
Ignacio

________________________________________
From:
[] on behalf of Mark Feit
[]
Sent: 07 November 2020 00:52
To: Ignacio Peluaga Lozada;
Subject: Re: [perfsonar-user] pScheduler latency task behind NAT

Ignacio Peluaga Lozada writes:

I would like to ask if it is possible to run pScheduler's latency task when
it sits behind NAT. More specifically, I am using the perfSONAR Docker
testpoint on a Linux VM.

I learnt it's possible to use twping (whose option '-Z' allows the NAT
environment) instead of the default owping since perfSONAR 4.1. The following
command works fine:

twping -Z psb01-gva.cern.ch

I understand pScheduler's '--tool' option can be used to select twping but
still, I get no measurements. I run it in this way:

pscheduler task --tool twping latency --dest psb01-gva.cern.ch

…

Run did not complete: Failed

The failure is caused by a bug that crept in during 4.3 development and
managed to slip through testing. I’ve fixed it and will get a patch out
early next week. You mentioned that your system is 4.2.4, but this bug
wasn’t present there. You probably auto-upgraded to 4.3.

As far as the -Z is concerned, I’ve opened an issue on that:
https://github.com/perfsonar/pscheduler/issues/1082. If there are no side
effects of putting that switch on by default, I’ll slip it in with the next
bugfix. If there are, we’ll need to add a switch to the latency test to
enable that behavior and will have it out in the next release. (That change
is kind of a big deal if we have to make it.)

--Mark


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