perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

Hey Szymon;

Its best to start by re-iterating that PingER is currently unsupported (the 
developer has left the project) and targeted for removal in the next release. 
 I can try to help you figure out why it isn't working, but with the next 
release there will be an alternative solution for RTT monitoring.  

The errors seem to indicate there is no data to graph, and there may be a 
problem getting data to graph if the INFO messages are to be believed - the 
'packetSize' size is listed as 'undefined' which may make the ping test fail. 
 Try two things:

1) Verify the database to look for data, use this command to get into the 
mysql command line interface:

> mysql -u root


And then these two commands when in there:

> use pingerMA;
> show tables;

Look for a database called 'data_201404'.  If you don't have one, you don't 
have data.

2) Examine the /opt/perfsonar_ps/PingER/etc/pinger-landmarks.xml file.  I 
believe that if you edit the '<nmwg:parameter name="packetSize">' parameters 
to be the following in each of the node definitions:

> <nmwg:parameter name="packetSize">1000</nmwg:parameter>


It may correct the problem.  Restart the service (sudo /etc/init.d/PingER 
stop;sudo /etc/init.d/PingER start), and see if data is flowing into the 
database, or if you are seeing other errors.  

Hope this helps;

-jason

On Apr 4, 2014, at 6:17 AM, Szymon Trocha 
<>
 wrote:

> Hi,
> 
> I set scheduled ping tests but they seem not to provide any data. The graph 
> window shows No results.
> 
> pinger.log shows:
> 
> 2014/04/04 12:10:31 (20625) INFO> Scheduler.pm:632 
> perfSONAR_PS::Services::MP::Scheduler::doTest - Collecting measurements for 
> 'urn:ogf:network:domain=test.6088331:node=7541295:port=129.16.125.159:packetSize=undefined:count=10:interval=1:ttl=255'
> 2014/04/04 12:10:31 (20625) INFO> Scheduler.pm:632 
> perfSONAR_PS::Services::MP::Scheduler::doTest - Collecting measurements for 
> 'urn:ogf:network:domain=test.6088331:node=7541295:port=129.16.125.159:packetSize=undefined:count=10:interval=1:ttl=255'
> 2014/04/04 12:10:31 (20626) INFO> Scheduler.pm:632 
> perfSONAR_PS::Services::MP::Scheduler::doTest - Collecting measurements for 
> 'urn:ogf:network:domain=test.6088331:node=4950506:port=129.74.128.130:packetSize=undefined:count=10:interval=1:ttl=255'
> 2014/04/04 12:10:31 (20626) INFO> Scheduler.pm:632 
> perfSONAR_PS::Services::MP::Scheduler::doTest - Collecting measurements for 
> 'urn:ogf:network:domain=test.6088331:node=4950506:port=129.74.128.130:packetSize=undefined:count=10:interval=1:ttl=255'
> 2014/04/04 12:10:31 (20627) INFO> Scheduler.pm:632 
> perfSONAR_PS::Services::MP::Scheduler::doTest - Collecting measurements for 
> 'urn:ogf:network:domain=test.6088331:node=5716153:port=129.74.128.145:packetSize=undefined:count=10:interval=1:ttl=255'
> 2014/04/04 12:10:31 (20627) INFO> Scheduler.pm:632 
> perfSONAR_PS::Services::MP::Scheduler::doTest - Collecting measurements for 
> 'urn:ogf:network:domain=test.6088331:node=5716153:port=129.74.128.145:packetSize=undefined:count=10:interval=1:ttl=255'
> 
> but also :
> 
> 2014/04/04 12:16:22 (12247) INFO> daemon.pl:572 main::psService - Received 
> incoming connection from:    127.0.0.1
> 2014/04/04 12:16:22 (20706) INFO> Request.pm:357 
> perfSONAR_PS::Request::finish - Total service time for request from 
> 127.0.0.1: 0.005475 seconds
> 2014/04/04 12:16:22 (12247) INFO> daemon.pl:572 main::psService - Received 
> incoming connection from:    127.0.0.1
> 2014/04/04 12:16:22 (20707) FATAL> PingER.pm:113 
> perfSONAR_PS::Datatypes::PingER::handle -  Handler for SetupDataRequest 
> failed: Can't use string ("-1") as a HASH ref while "strict refs" in use at 
> /opt/perfsonar_ps/PingER/bin/../lib/perfSONAR_PS/Datatypes/PingER.pm line 
> 531.
> 2014/04/04 12:16:22 (20707) ERROR> RequestHandler.pm:709 
> perfSONAR_PS::RequestHandler::__ANON__ - Error handling metadata/data 
> block:  Handler for SetupDataRequest failed: Can't use string ("-1") as a 
> HASH ref while "strict refs" in use at 
> /opt/perfsonar_ps/PingER/bin/../lib/perfSONAR_PS/Datatypes/PingER.pm line 
> 531.
> 2014/04/04 12:16:22 (20707) ERROR> RequestHandler.pm:735 
> perfSONAR_PS::RequestHandler::handleMessage - Couldn't handle requested 
> metadata: An internal error occurred while servicing this metadata/data 
> block
> 2014/04/04 12:16:22 (20707) INFO> Request.pm:357 
> perfSONAR_PS::Request::finish - Total service time for request from 
> 127.0.0.1: 0.017544 seconds
> 
> Where is the problem?
> 
> 
> -- 
> Szymon Trocha
> 
> Poznań Supercomputing & Netw. Center ::: NETWORK OPERATION CENTER
> Tel. +48 618582022 ::: http://noc.man.poznan.pl