perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

Hi Zafar;

I am CCing the performance-node-users list on this response.  Comments 
below:

On 11/25/10 5:57 AM, Zafar Gilani wrote:
> Hi,
>
> I've deployed new BW and LA PS nodes but can't seem to view any graphs.
> Whenever I go to Service Graphs -> Throughput or Service Graphs ->
> One-Way Latency, I get the following:
>
> Problem Handling Request
> MA */http://localhost:8085/perfSONAR_PS/services/pSB/* did not return
> the expected response, be sure it is configured and populated with data.
>
> For OWAMP I try to view graph and receive following:
>
>
>     Internal Error - Service returned data, but it is not plotable for
>     this measurement pair.
>
> Anyone having any ideas? I've already checked the scheduled tests.
> Everything seems to be correct. I also checked
> http://psps.perfsonar.net/toolkit/FAQs.html#Q19 but I don't think this
> is the case as it has been more than 24 hours since the nodes were deployed.

What is the address of this performance node, is it world accessible or 
does it have a local address?

I would suggest looking in the database by hand to see if there is 
recent data:

   mysql -u root

Once at the mysql prompt try these commands:

   use owamp;
   show tables;

Look for a table that has data for 20101125_* or similar.  Try the same 
for bwctl:

   use bwctl;
   show tables;
   exit;

There should be data for 201011_*.  If you don't see recent data tables, 
you are not getting data from the regular tests (even though you did set 
them up).  This could be because your system clock is not correct/not 
running, firewalls are preventing the BWCTL/OWAMP tests, or perhaps some 
other reason.

Let us know what you see and we can debug further, thanks;

-jason