perfSONAR User Q&A and Other Discussion

[Szymon Trocha <>]

Hi Tom,

W dniu 18.09.2018 o 18:00, Tom Yard pisze:

Dear people, I put two perfSONAR servers in the same network segment, in order to test the tool.

Both servers are clones and have the following features:

- Their own web interface

- All the services running ok (esmond, lsregistration, oamp, pscheduler, psconfig, twamp)

- firewalld service is stopped (iptables), so there are no any firewall rule at all between servers

- iperf3 enabled from /etc/pscheduler/tool/iperf3/iperf3.conf

[iperf3]

iperf3_cmd = /usr/bin/iperf3

server_port = 5201

These are defaults. You don't have to enable/uncomment it.

 

But in the web interface from server that runs tests to the other, latency and loss tests are OK but throughput test has not any data and I can see this error:

-> [throughput] TCP iperf3 returned an error: error - unable to connect to server: Connection refused [iperf3]

-> [throughput] UDP iperf3 returned an error: error - unable to connect to server: Connection refused [iperf3]

From the perfSONAR server that run a task I can see the following log:

Sep 18 12:03:07 PSR01 runner INFO     67206: With iperf3: throughput --duration PT20S --source 172.31.18.26 --ip-version 4 --dest 172.31.18.22 --source-node 172.31.18.26 --dest-node 172.31.18.22 --single-ended

What is a result of "pscheduler troubleshoot hostname" where hostname is the name of a remote pScheduler host?

Regards,

--

Szymon Trocha
Poznań Supercomputing & Networking Center

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