perfSONAR User Q&A and Other Discussion

[Gerald Vogt <>]

Hi Mark,

thanks for your answer.

I have tested rtt and that works.

$ export PSCHEDULER_ASSIST=eucgu53.euc.mpcdf.mpg.de
$ pscheduler task rtt --source eucgu53.euc.mpcdf.mpg.de --dest test.dkrz.de

However, what I need to measure is the throughput. And while I can run

$ pscheduler task throughput --assist denv.ps.internet2.edu --source 
clev.ps.internet2.edu --dest ashb.ps.internet2.edu

I cannot run a throughput test from or to my test server.

$ export PSCHEDULER_ASSIST=eucgu53.euc.mpcdf.mpg.de
$ pscheduler task throughput --source eucgu53.euc.mpcdf.mpg.de --dest 
test.dkrz.de
Submitting with assistance from eucgu53.euc.mpcdf.mpg.de...
Failed to post task: Error getting tools from test.dkrz.de: Host is not 
running pScheduler

The 'pscheduler troubleshoot' command may be of use in problem
diagnosis. 'pscheduler troubleshoot --help' for more information.

nor the opposite direction:

$ pscheduler task throughput --dest eucgu53.euc.mpcdf.mpg.de --source 
test.dkrz.de
Submitting with assistance from eucgu53.euc.mpcdf.mpg.de...
Unable to find pScheduler on test.dkrz.de: Not running pScheduler.

How can I do a throughput test?

Thanks,

Gerald

On 09.08.24 16:05, Mark Feit wrote:
> Gerald Vogt writes:
>
> I am trying to set up a server which I can use to do manual, single
> performance tests with public perfsonar servers.
> …
> Can anyone give a simple example how to run a performance test with an
> external, public perfsonar server after installing only perfsonar-tools?
>
> Sure.  Starting with a fresh AlmaLinux 9 system:
>
> $ curl -s https://downloads.perfsonar.net/install | sudo sh -s - tools
>
> …Many lines of output…
>
> $ export PSCHEDULER_ASSIST=denv.ps.internet2.edu
>
> $ pscheduler task rtt --source clev.ps.internet2.edu --dest 
> ashb.ps.internet2.edu
>
> Submitting with assistance from denv.ps.internet2.edu...
>
> Task URL:
>
> https://clev.ps.internet2.edu/pscheduler/tasks/f95dd01b-ce17-4f8b-9dcc- 
> c1b37f366b34 <https://clev.ps.internet2.edu/pscheduler/tasks/f95dd01b- 
> ce17-4f8b-9dcc-c1b37f366b34>
>
> Running with tool 'ping'
>
> Fetching first run...
>
> Next scheduled run:
>
> https://clev.ps.internet2.edu/pscheduler/tasks/f95dd01b-ce17-4f8b-9dcc- 
> c1b37f366b34/runs/deb6ccc6-32f0-4857-8c6b-92930e5239d6 <https:// 
> clev.ps.internet2.edu/pscheduler/tasks/f95dd01b-ce17-4f8b-9dcc- 
> c1b37f366b34/runs/deb6ccc6-32f0-4857-8c6b-92930e5239d6>
>
> Starts 2024-08-09T09:53:25-04:00 (~2 seconds)
>
> Ends   2024-08-09T09:53:36-04:00 (~10 seconds)
>
> Waiting for result...
>
> 1       ashb.ps.internet2.edu (2001:468:1f0c::6)  64 Bytes  TTL 62  
> RTT   7.2700 ms
>
> 2       ashb.ps.internet2.edu (2001:468:1f0c::6)  64 Bytes  TTL 62  
> RTT   7.2800 ms
>
> 3       ashb.ps.internet2.edu (2001:468:1f0c::6)  64 Bytes  TTL 62  
> RTT   7.2400 ms
>
> 4       ashb.ps.internet2.edu (2001:468:1f0c::6)  64 Bytes  TTL 62  
> RTT   7.2300 ms
>
> 5       ashb.ps.internet2.edu (2001:468:1f0c::6)  64 Bytes  TTL 62  
> RTT   7.2400 ms
>
> 0% Packet Loss  RTT Min/Mean/Max/StdDev = 
> 7.238000/7.255000/7.280000/0.109000 ms
>
> No further runs scheduled.
>
> The PSCHEDULER_ASSISTenvironment variable  and using the --assist switch 
>   with pscheduler taskare equivalent.
>
> As far as I understand in the docs I have to use pscheduler … And even 
> if I install pscheduler-server, I don't get it to work because
> the pscheduler-server does not offer any test tools.
>
> The pscheduler-serverpackage is one piece of a larger puzzle.  The plug- 
> ins that make it able to understand what the tests are and able to carry 
> them out are packaged separately.  There is a package called pscheduler- 
> bundle-fullthat will install the server and all its plugins.  It’s not 
> something we officially recommend, but it will give you a standalone, 
> pScheduler-only system.
>
> --Mark