Internet_speed plugin failed to fetch user info

[mikaelpeltier]

Relevant telegraf.conf

# Monitors internet speed using speedtest.net service
[[inputs.internet_speed]]
  ## This plugin downloads many MB of data each time it is run. As such
  ## consider setting a higher interval for this plugin to reduce the
  ## demand on your internet connection.
  interval = "2m"

  ## Enable to reduce memory usage
  # memory_saving_mode = false

  ## Caches the closest server location
  # cache = false

Logs from Telegraf

2022-11-09T15:02:43Z I! Using config file: /etc/telegraf/telegraf.conf
2022-11-09T15:02:43Z I! Starting Telegraf 1.24.3
2022-11-09T15:02:43Z I! Available plugins: 222 inputs, 9 aggregators, 26 processors, 20 parsers, 57 outputs
2022-11-09T15:02:43Z I! Loaded inputs: internet_speed
2022-11-09T15:02:43Z I! Loaded aggregators:
2022-11-09T15:02:43Z I! Loaded processors:
2022-11-09T15:02:43Z I! Loaded outputs: influxdb_v2
2022-11-09T15:02:43Z I! Tags enabled: host=420d5a7f0f5b
2022-11-09T15:02:43Z I! [agent] Config: Interval:1m0s, Quiet:false, Hostname:"420d5a7f0f5b", Flush Interval:10s
2022-11-09T15:02:43Z D! [agent] Initializing plugins
2022-11-09T15:02:43Z D! [agent] Connecting outputs
2022-11-09T15:02:43Z D! [agent] Attempting connection to [outputs.influxdb_v2]
2022-11-09T15:02:43Z D! [agent] Successfully connected to outputs.influxdb_v2
2022-11-09T15:02:43Z D! [agent] Starting service inputs
2022-11-09T15:02:53Z D! [outputs.influxdb_v2] Buffer fullness: 0 / 10 metrics
2022-11-09T15:03:00Z E! [inputs.internet_speed] Error in plugin: fetching user info failed: EOF

System info

Latest version of telegraf docker

Docker

No response

Steps to reproduce

1. Configure internet_speed plugin with the official telegraf docker (latest version)
2. Start telegraf
3. internet_speed plugin will generate error because it failed to fetch user info

Expected behavior

internet_speed plugin should work as expected and collect internet connection data.
This plugin should work as it is the plugin used into the course Data Collection with Telegraf from the InfluxDB university website.

Actual behavior

internet_speed plugin failed to fetch user info
2022-11-09T15:03:00Z E! [inputs.internet_speed] Error in plugin: fetching user info failed: EOF

Additional info

I wonder if it is related to the FetchUserInfoContext method which do not initialize the user-agent into the http request.

[powersj]

I wonder if it is related to the FetchUserInfoContext method which do not initialize the user-agent into the http request.

You mean the function I called out in your forum post ;)

Can I have you file a bug at the upstream showwin/speedtest-go and ask what issue might be causing this? This code is outside of telegraf.

Thanks

[mikaelpeltier]

Yes, it seems related to the function that you mentionned.
I quickly checked and it could be related to user-agent, but not sure.
Yes, I just created a bug at the upstream showwin/speedtest-go.

[mikaelpeltier]

The new release of speedtest-go v1.2.1 contains a fix that should avoid this error.
Now, I think that the version of speedtest-go used by telegraf must be updated, someone could confirm this point ?

[powersj]

Thanks for putting up that PR! I can put up a PR to update the dep in go.mod shortly

[srebhan]

@mikaelpeltier please test the binary built by CI in #12248 once it's finished. Let me know if this fixes your issue.

[mikaelpeltier]

Thanks, I did a quick test with the binary built by CI in #12248 and works as expected.

Indeed, plugin does not longer crashed.

2022-11-19T09:39:28Z I! Starting Telegraf 1.25.0-0242810d
...
2022-11-19T09:43:30Z D! [inputs.internet_speed] Found server: [23282]    11.04km
2022-11-19T09:43:30Z D! [inputs.internet_speed] Starting Speed Test
2022-11-19T09:43:30Z D! [inputs.internet_speed] Running Ping...
2022-11-19T09:43:30Z D! [inputs.internet_speed] Running Download...
2022-11-19T09:43:36Z D! [inputs.internet_speed] Running Upload...
2022-11-19T09:43:40Z D! [inputs.internet_speed] Test finished.
2022-11-19T09:44:00Z D! [inputs.internet_speed] Found server: [23282]    11.04km
2022-11-19T09:44:00Z D! [inputs.internet_speed] Starting Speed Test
2022-11-19T09:44:00Z D! [inputs.internet_speed] Running Ping...
2022-11-19T09:44:00Z D! [inputs.internet_speed] Running Download...
2022-11-19T09:44:05Z D! [inputs.internet_speed] Running Upload...
2022-11-19T09:44:09Z D! [inputs.internet_speed] Test finished.
2022-11-19T09:44:26Z D! [outputs.influxdb_v2] Wrote batch of 2 metrics in 226.5015ms
2022-11-19T09:44:26Z D! [outputs.influxdb_v2] Buffer fullness: 0 / 10 metrics

And I can display result into influxdb dashboard