cannot run tests in local mode

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Miles Young

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Dec 28, 2021, 7:30:23 PM12/28/21

to Pantheon

Dear experts,

hello!

I plan to use Pantheon as a testing bed for our learning based network scheduling project. But I encountered a problem and I've been trying to figure out it for two weeks.

When I run src/experiments/test.py local --all, it gives me this error:

prompt [tsm]

tunnel manager is running

prompt [tcm]

[tsm] tunnel 1 mm-tunnelserver --ingress-log=/home/zheyang3/Projects/net-sched/pantheon/tmp/fillp_sheep_datalink_run1_flow1_uid773db8cb-408b-4bb0-9b90-cdf15b7c9b77.log.ingress --egress-log=/home/zheyang3/Projects/net-sched/pantheon/tmp/fillp_sheep_acklink_run1_flow1_uid773db8cb-408b-4bb0-9b90-cdf15b7c9b77.log.egress

[tsm] tunnel 1 readline

[tcm] tunnel 1 mm-tunnelclient $MAHIMAHI_BASE 41326 100.64.0.6 100.64.0.5 --ingress-log=/home/zheyang3/Projects/net-sched/pantheon/tmp/fillp_sheep_acklink_run1_flow1_uid773db8cb-408b-4bb0-9b90-cdf15b7c9b77.log.ingress --egress-log=/home/zheyang3/Projects/net-sched/pantheon/tmp/fillp_sheep_datalink_run1_flow1_uid773db8cb-408b-4bb0-9b90-cdf15b7c9b77.log.egress

[tcm] tunnel 1 readline

Tunnelclient listening for server on port 57199

Tunnelclient received no response from tunnelserver, retrying 1/5

Tunnelclient received no response from tunnelserver, retrying 2/5

Tunnelclient received no response from tunnelserver, retrying 3/5

Tunnelclient received no response from tunnelserver, retrying 4/5

So I searched through this group and found a way to debug this. I ran mm-tunnelserver in one terminal and mm-tunnelclient in another terminal, it works fine. But when I ran mm-tunnelserver in one terminal, then in another terminal I first ran mm-link with the provided traces then I ran mm-tunnelclient, it gives the same "Tunnelclient received no response from tunnelserver" error.

Could anyone provide some insights for me please?

Thank you!

Best regards,

Zhe

Miles Young

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Dec 30, 2021, 8:03:02 PM12/30/21

to Pantheon

Problem solved. I'm using ufw and it's blocking connections from within mm-link. I updated the firewall with "
sudo ufw allow from 100.64.0.2" and it's okay now.