perfSONAR User Q&A and Other Discussion

["Smith, Cody A." <>]

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


Learn more about OARnet at https://oar.net