perfSONAR User Q&A and Other Discussion

[Andrew Lake <>]

Hi,

In /etc/perfsonar/meshconfig-guiagent.conf on your maddash server are you pointing at the same URL twice? It sounds like maybe it is reading the same JSON file twice and complaining because the test name overlaps.

Thanks,

Andy

On October 4, 2017 at 9:29:56 AM, Smith, Cody A. () wrote:

All,

 

I was checking on our mesh today and noticed that our node isn’t acting correctly. Checking the logs I found this error with the meshconfig-guiagent.log :

               

017/10/04 09:07:39 (12812) ERROR> GUIAgent.pm:219 perfSONAR_PS::MeshConfig::GUIAgent::__configure_guis - Problem generating maddash configuration: Problem generating maddash configuration: Check OARnet_Maddash_Configuration_-_One_Hour_Throughput_Testing has been redefined at /usr/lib/perfsonar/bin/../lib/perfSONAR_PS/MeshConfig/Generators/MaDDash.pm line 538.

 

So, trimming that “test” block out of the configuration just results in the same message, only with the new test’s description.

Below is the test, test configuration:

 

<test_spec bwctl_1h_tcp_test>

  # Define a test spec for testing achievable bandwidth once every hour

 

  type              perfsonarbuoy/bwctl  # Perform a bwctl test (i.e. achievable bandwidth)

  tool              bwctl/iperf3          # Use 'iperf' to do the bandwidh test

  protocol          tcp                  # Run a TCP bandwidth test

  interval          3600                 # Run the test every hour

  duration          20                   # Perform a 20 second test

</test_spec>

 

<test_spec owamp_test>

  # Define a test spec for doing jitter, loss and latency testing

 

  type              perfsonarbuoy/owamp  # Perform a constant low-bandwidth OWAMP test

  packet_interval   0.1                 # Send 10 packets every second (i.e. pause 0.1 seconds between each packet)

  sample_count      600                  # Send results back every 60 seconds (once every 600 packets)

  bucket_width      0.001                # The granularity of the measurements

</test_spec>

 

<test_spec ping_test>

  # Define a test spec for doing ICMP jitter, loss and latency testing every 5 minutes

 

  type              pinger               # Perform PingER tests

  test_interval     300                  # Perform a test every 5 minutes

  packet_count      10                   # Send 10 packets for each test

  packet_interval   1                    # Pause 1 second between each packet sent

  packet_size       1000                 # The size of the packets (not include the IP headers)

</test_spec>

 

<test_spec traceroute_test>

  # Define a test spec for running traceroute tests every 10 minutes

 

  type              traceroute           # Perform a traceroute test

  test_interval     600                  # Run the test every 5 minutes

  packet_size       40                   # The size of the packets (not include IP/UDP headers)

</test_spec>

 

<group oarnet_bwctl_group>

    type       mesh

 

    member     https://perfsonar-dashboard.oar.net

    member     tc-perf.net.ohio-state.edu

    member     kc-perf.net.ohio-state.edu

</group>

 

<group oarnet_owamp_group>

    type       mesh

 

    member     https://perfsonar-dashboard.oar.net

    member     tc-perf.net.ohio-state.edu

    member     kc-perf.net.ohio-state.edu

</group>

 

<test>

  description       One Hour Throughput Testing

  group             oarnet_bwctl_group

  test_spec         bwctl_1h_tcp_test

</test>

 

<test>

  description       OWAMP Testing

  group             oarnet_owamp_group

  test_spec         owamp_test

</test>

 

Thoughts // Suggestions? As always, thanks in advance.  

 

Best,

Cody Smith
Performance Engineer
OARnet
A member of the Ohio Technology Consortium
1224 Kinnear Road, Columbus, Ohio 43212
Office: (614) 292-9947 • Mobile: (740) 252-1062 • Fax: (614) 292-9390


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