perfSONAR User Q&A and Other Discussion

["Garnizov, Ivan" <>]

Hi Onno,

 

“Does that mean our Perfsonar is too busy?”

No! Just from a single attempt it is not possible to make such conclusions.

It is not even clear, which side is busy. With throughout you have both ends, that should have a free time slot and match it for a this test to succeed.

 

You should make this same test with -- debug  and -- slip options:

 

pscheduler task --debug throughput --source perfsonar-bandwidth.grid.surfsara.nl --dest luisteraar.nikhef.nl --slip PT30M

 

for the utilisation of the pScheduler schedule you should look in http://docs.perfsonar.net/pscheduler_client_schedule.html#visualizing-the-schedule-with-pscheduler-plot-schedule

 

 

Regards,

Ivan Garnizov

 

GEANT WP6T3: pS development team

GEANT WP7T1: pS deployments GN Operations

GEANT WP9T2: Software governance in GEANT

 

 

 

From: Onno Zweers [mailto:]
Sent: Wednesday, August 4, 2021 10:07 AM
To: Garnizov, Ivan (RRZE) <>
Subject: Re: Added tests not listed in the Test Results

 

Hi Ivan,

 

Thanks! I searched the pscheduler logs but there’s only this:

 

[root@perfsonar /var/log/pscheduler]# grep luisteraar.nikhef.nl *

 

It could be a manual run that my colleagues at Nikhef started. Still nothing in the Test Results when I search for “nikhef”.

 

I tried to run a test towards Nikhef at the command line:

 

[root@perfsonar ~]# pscheduler task throughput --source perfsonar-bandwidth.grid.surfsara.nl --dest luisteraar.nikhef.nl

Submitting task...

Task URL:

https://perfsonar-bandwidth.grid.surfsara.nl/pscheduler/tasks/3bc763d2-554d-4566-bc2a-ea0fe9f0fc61

Running with tool 'iperf3'

Fetching first run...

 

Next scheduled run:

https://perfsonar-bandwidth.grid.surfsara.nl/pscheduler/tasks/3bc763d2-554d-4566-bc2a-ea0fe9f0fc61/runs/cfead1c9-fc8a-481f-9aec-ef6d46db672b

 

Run scheduled at 2021-08-04T09:59:51+02 is a non-starter:

Gave up after too many scheduling conflicts.

 

Does that mean our Perfsonar is too busy?

 

Kind regards,

Onno

 

Van: "Garnizov, Ivan" <>
Datum: vrijdag 30 juli 2021 om 18:16
Aan: Onno Zweers <>
Onderwerp: RE: Added tests not listed in the Test Results

 

Dear Onno,

 

There are many circumstances, that could prevent tests from running.

I would say that the first place you should look for an explanation of missing results is the pscheduler service (more of a platform), which controls all of the important procedures associated with the measurements.

-          Coordination

-          Execution

-          Collection and submission

 

For this you need to review the /var/log/pscheduler/pscheduler.log

 

To be able to further assist you, please provide the output of this command:

grep luisteraar.nikhef.nl /var/log/pscheduler/pscheduler.log

 

 

Regards,

Ivan Garnizov

 

GEANT WP6T3: pS development team

GEANT WP7T1: pS deployments GN Operations

GEANT WP9T2: Software governance in GEANT

 

 

 

 

From: [] On Behalf Of Onno Zweers
Sent: Friday, July 30, 2021 12:29 PM
To:
Subject: [perfsonar-user] Added tests not listed in the Test Results

 

Dear people,

 

My knowledge of Perfsonar is limited; apologies if I’m asking for something obvious. Our Perfsonar https://perfsonar-bandwidth.grid.surfsara.nl/toolkit/ is happily measuring lots of other WLCG Perfsonars. Now I tried to add tests for our neighbors, Nikhef: https://luisteraar.nikhef.nl/toolkit/. So I’ve added them like in this screen shot:

 

However, when I try to look up results in the Test Results, they are simply not listed (not even the next day). I looked also on the private dashboard. No sign of luisteraar.nikhef.nl. Why is it not listed? I can ping from our PS to theirs so I assume there should be at least one test that doesn’t fail, and even if tests fail I’d still expect to see them in the results.

 

Kind regards,

Onno