nomad fails to determine interface speed on Ubuntu 14.0.3 LTS

[homiak]

Nomad version

Output from nomad version
0.4.0

Operating system and Environment details

Ubuntu LTS 14.0.3

Issue

Network speed detection fails

Reproduction steps

Start nomad agent, check the logs

Nomad Server logs (if appropriate)

Nomad Client logs (if appropriate)

nomad[28018]: fingerprint.network: Unable to parse Speed in output of '/sbin/ethtool eth0'

Output of the command:

sudo /sbin/ethtool eth0
Settings for eth0:
Link detected: yes

Original question: https://groups.google.com/forum/#!topic/nomad-tool/3TbrUXLaYrI

[gpaggi]

@homiak you get to see that error on kvm with virtio-net, which is a para-virtualized driver and doesn't have a link speed. This is the same issue reported for Mesos: https://issues.apache.org/jira/browse/MESOS-4420

[evan2645]

same on xenial in ec2 w/ hvm instances, nomad 0.4.1-rc1. master has the same checks so i assume it is also affected. a knob to allow us to define the speed would be a good placeholder for now... are there any suggested workarounds?

[dadgar]

Hey Evan,

That knob exists it is network_speed: https://www.nomadproject.io/docs/agent/config.html

[evan2645]

sorry, totally missed that

[dadgar]

Hey going to close this one since when there is no link speed reported we set a default and allow operators to override. Thanks!