perfSONAR User Q&A and Other Discussion

[Antoine Delvaux <>]

Dear Sultana,

The Network Congested message from the NDT server can come from the relatively low network performance the RPie is able to achieve. Compare the throughput details you receive from running the ndt client on your RPie and on your PC to see if they match or if the performance seen on the RPie is lower.

As you say, NDT is measuring the end to end performance, so this also involves the performance of the node itself, not only the network.  Hence differences you can see between different clients.

Regards,

--                                                                --
Antoine Delvaux                                     Systems Engineer

Poznań Supercomputing & Network Center                 Skype: toninb

GÉANT project                                    Tel: +221.703368313
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Le 28 oct. 2015 à 03:59, Sultana Shaik <> a écrit :

Dear Support,

 

My Concern is not for Bandwidth testing, it’s about Network Diagnostic Test using Web100CTL command line tool in RPie its pure NDT test end to end to test our network for Congestion and Duplex Mismatch 

 

 

Regards,

 

 

 

<image001.jpg>

 

From: Daniel Doyle [] 
Sent: 27 October, 2015 04:45 PM
To: Sultana Shaik
Cc: Andrew Lake; ; Sultan Sharief
Subject: Re: [perfsonar-user] Raspberry Node Setup!

 

Hi Sultana,

 

Just a guess here based on some prior examples.

 

Almost every ultra low end ARM based hardware that has been tested has been unable to run close to line rate on a gigabit NIC. Primarily this is due to limitations on the CPU architecture where the max bandwidth you're going to see ranges anywhere from 100-400 Mbps depending on a couple of factors. I believe the banana pi could get up to about 6-700 Mbps, but that's still a far throw from what most people would call gigabit ethernet.

 

It might be useful to you to do a straight BWCTL or iperf test to see what you're actually getting throughput wise and if it matches with the above. I'm not overly familiar with the internals of NDT but it could be seeing the host limitations as network congestion.

 

-Dan

 

 

On Oct 27, 2015, at 1:30 AM, Sultana Shaik <> wrote:

 

Dear Team,

 

I am running Web100CTL from Raspbery pie 2 Debian  command line and always getting network congested result in websrv logs in my NDT Server, whereas pc connected to the same router and running web client, reporting  normal results against the NDT server.

 

Regards,

 

 

<image001.jpg>

 

From: Andrew Lake [] 
Sent: 08 October, 2015 03:32 PM
To: Sultana Shaik
Cc: ; Sultan Sharief
Subject: RE: [perfsonar-user] Raspberry Node Setup!

 

Hi,

 

You can’t using any perfSONAR supported software. NDT is distributed only for the purpose of on-demand testing on the perfSONAR Toolkit. 

 

Thanks,

Andy

 

 

 

 

On Thu, Oct 8, 2015 at 7:06 AM, Sultana Shaik <> wrote:

Dear Team,

 

How can I test Perfsonar NDT using Central Configuration Management, End point running with Web100CTL

 

 

Regards,

 

Sultan

<image001.jpg>

 

From: Andrew Lake [] 
Sent: 06 October, 2015 05:19 PM
To: Sultana Shaik
Cc: Sultan Sharief; 
Subject: RE: [perfsonar-user] Raspberry Node Setup!

 

Hi,

 

Hmm I’ve never used that option personally and documentation seems non-existent. That also makes me a bit skeptical well-tested it is at this point. You may want to hit the  and see if you get a response there if no one else chimes in here.

 

Thanks,

Andy

 

 

On Tue, Oct 6, 2015 at 5:54 AM, Sultana Shaik <> wrote:

Dear Support,

 

There is option in WEB100SRV to export the test result to mysql database, any help on this regard and what are the tables will be created?

 

Regards,

 

<image003.jpg>

 

 

From: Garnizov, Ivan (RRZE) [] 
Sent: 05 October, 2015 01:07 PM
To: Sultan Sharief; Daniel Doyle
Cc: Sultana Shaik; ; Brian Tierney
Subject: RE: [perfsonar-user] Raspberry Node Setup!

 

Hi Sultan,

Here is a reference to a previous reply:

 

From:  [] On Behalf Of Andrew Lake
Sent: Donnerstag, 13. August 2015 18:27
To: Ji-Sun Kim
Cc: 
Subject: Re: [perfsonar-user] How to let NDT server handle multiple requests simultaneously...

 

Hi,

 

The original NDT developer just informed me that you can do this by adding the “-m” option to your ndt server command. Assuming this is on a toolkit host using the NDT RPM, you can update the existing WEB100SRV_OPTIONS variable to include -m in the file /etc/sysconfig/ndt. Run "/etc/init.d/ndt restart” after the change and you should be able to run multiple tests. 

 

Thanks,

Andy

 

Best regards,

Ivan

 

 

 

From: Sultan Sharief [] 
Sent: Montag, 5. Oktober 2015 09:55
To: Daniel Doyle
Cc: Sultana Sharief Shaik; Garnizov, Ivan (RRZE); ; Brian Tierney
Subject: Re: [perfsonar-user] Raspberry Node Setup!

 

Dear Team,

 

If try to run the default NDT Web Tool from multiple sessions its working 1 by 1 there is no muti threading

 

How can i run simultaneous tests on NDT server?

 

Regards,

 

Sultan

 

On Wed, Sep 30, 2015 at 5:40 PM, Daniel Doyle <> wrote:

 

On Sep 30, 2015, at 8:50 AM, Brian Tierney <> wrote:

 

 

On Wed, Sep 30, 2015 at 5:08 AM, Garnizov, Ivan (RRZE) <> wrote:

Dear Sultan,

 

Here are some references:

 

How can I publish central configuration file, so that raspberry pie will read and start sending measurements to particular server?

http://docs.perfsonar.net/multi_overview.html

 

How to configure raspberry pie to send data to particular server?

http://docs.perfsonar.net/multi_ma_install.html

“As an alternative, you may decide to separate your measurement hosts and archive host(s). This allows a single “centralized” archive host to store results from multiple measurement hosts. A few use cases where this may be desirable are as follows”

 

The centralized MA is what you are looking for it sounds like. If you're going to be deploying a lot of these, I would suggest looking into the IP based authentication since it allows for a workflow with fewer steps when turning up these smaller devices. The username/API key approach is still perfectly fine as well, there's just another step when setting up the device.

 

 

How to manage the raspberry pie from central server?

Please clarify your expectations here! We have recently published automation configuration procedure for central management. http://docs.perfsonar.net/multi_puppet_overview.html

I have never worked with the “raspberry pie”, but I doubt you would like to apply Central configuration management on these.

 

The University of Hawaii uses puppet for this.

 

 

What about reporting?

Again depending on the understanding for reporting one has, you could argue about these sources, but:

Reporting through Nagios: https://github.com/perfsonar/nagios/blob/master/README.md

Monitoring through MADDASH: 

http://docs.perfsonar.net/manage_extra_tools.html#maddash

 

 

To add to this, if you have the results being sent to a MA that has the full toolkit installed on it, the results from these tests will show up in the regular test results as if you had configured them there. The MA actually doesn't care what the src/dst was of the tests - it will show everything that it knows about. You can click and get the same graphs as usual.

 

 

Best regards,

Ivan

 

-----Original Message-----
From:  [mailto:] On Behalf Of Sultana Sharief Shaik
Sent: Mittwoch, 30. September 2015 06:30
To: Szymon Trocha; Sultan Sharief
Cc: 
Subject: RE: [perfsonar-user] Raspberry Node Setup!

 

Dear Trocha,

 

Thanks a lot for your valuable feedback

 

Please note that I have installed perfsonar toolkit on centos  and testpoint on Rasberry pie2

 

How can I publish central configuration file, so that raspberry pie will read and start sending measurements to particular server?

 

How to configure raspberry pie to send data to particular server?

 

How to manage the raspberry pie from central server?

 

What about reporting?

 

Regards,

 

Sultan

 

 

 

 

-----Original Message-----

From: Szymon Trocha []

Sent: 29 September, 2015 03:28 PM

To: Sultan Sharief

Cc: ; Sultana Sharief Shaik

Subject: Re: [perfsonar-user] Raspberry Node Setup!

 

W dniu 29.09.2015 o 13:20, Sultan Sharief pisze:

> Dear Trocha,

> 

> I managed to install testpoint in raspberry pie , how to setup to

> transmit data to measurement server

> 

> 

 

Do you already have a central measurement archive?

 

See this for MA details:

http://docs.perfsonar.net/3.5rc2/multi_ma_install.html

 

Regards,

 

--

Szymon Trocha

 

Poznań Supercomputing & Netw. Center ::: NETWORK OPERATION CENTER Tel. +48 618582022 :::http://noc.man.poznan.pl

 

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-- 

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Energy Sciences Network (ESnet), Berkeley National Lab
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Dan Doyle

GlobalNOC Software Developer

1-812-856-3892

 

 

 

 

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The content of this email together with any attachments, statements and opinions expressed herein contains information that is private and confidential are intended for the named addressee(s) only. If you are not the addressee of this email you may not copy, forward, disclose or otherwise use it or any part of it in any form whatsoever. If you have received this message in error please notify  by email immediately and delete the message without making any copies.

 

Dan Doyle

GlobalNOC Software Developer

1-812-856-3892

 

 

 

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The content of this email together with any attachments, statements and opinions expressed herein contains information that is private and confidential are intended for the named addressee(s) only. If you are not the addressee of this email you may not copy, forward, disclose or otherwise use it or any part of it in any form whatsoever. If you have  received this message in error please notify  by email immediately and delete the message without making any copies.