perfSONAR User Q&A and Other Discussion

[Kathy Benninger <>]

I am seeing inconsistencies with perfSONAR Test Results Display on a few of 
the pSs in a mesh that I manage. I first noticed the problem earlier this week.

There was also an issue where some of the pSs stopped initiating scheduled 
tests last Friday ~5pmET. This latter issue seems to have been resolved with 
a restart of pscheduler services or a reboot. I don't know that the display 
and testing problems are in any way related, but I mention both in case 
there is some known correlation.

Regarding the ongoing Test Results Display issue:

1) The "Test Results Overlay" stats box does not appear for some tests
2) Response to mouse interaction for these tests is limited and very slow 
(on the order of 20 seconds or more)

Example at:
    http://ps.iu.xsede.org/toolkit/

    The display for test results with ps.nics.utk.edu looks OK.

    The display for test results with ps.psc.xsede.org demonstrates
    the problem.

I rebooted to fully update all pSs, which are now running:
  CentOS Linux 2.6.32-696.10.2.el6.x86_64
  perfSONAR Toolkit v4.0.1-1.el6

I'm looked for guidance on what error messages to look for or how to go 
about diagnosing this problem.

Thanks!
Kathy

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Kathy Benninger
Pittsburgh Supercomputing Center