perfSONAR User Q&A and Other Discussion

[Zafar Gilani <>]

Hi Jason,

Checked server time, it seems to be fine. The databases have data for both owamp and bwctl tables for LA and BW nodes respectively. However the tests return the following:

For bwctl "remote peer cancelled test". However it does say server listening on xy port and binding to local address. For owamp tests I see first and last results but it also says 0 sent, 0 lost. This is strange.

What do you think might be the problem? I do see data which suggests the firewall might not be the culprit.

On Thu, Nov 25, 2010 at 10:31 PM, Jason Zurawski <> wrote:

Hi Zafar;

On 11/25/10 12:26 PM, Zafar Gilani wrote:

Hi Jason,

Thanks for the reply. I'm not able to access the machines from my home,
I'll try tomorrow morning and let you know. Possibility of a firewall
also comes to my mind. I also checked system clock and it seemed to be
correct. Addresses:

BW: 115.186.131.105
LA: 115.186.131.107

I am able to reach both, one thing I am noticing is that these are both 3.1.2.  I would suggest upgrading to 3.2 if at all possible.

In any event, report back if you are seeing data when you get a chance - also if you suspect a firewall may be an issue, try some simple tests to some of the hosts that are in the regular testing groupings, e.g.:

 owping HOST_IN_LATENCY_TESTS
 bwctl -c HOST_IN_BW_TESTS
 bwctl -s HOST_IN_BW_TESTS

If these fail for any of the hosts, firewalls may be an issue.

Thanks;

-jason

These machines are deployed at NUST, Islamabad, Pakistan.

On Thu, Nov 25, 2010 at 5:48 PM, Jason Zurawski <

<mailto:>> wrote:

   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