Telegraf Execd Go Shim on Windows Error "file does not exist"

[ashishkaransingh]

https://github.com/influxdata/telegraf/tree/master/plugins/common/shim

I downloaded and build rand using "go build -o rand cmd/main.go"

Then under telegraf.conf I used it as following:

[[inputs.execd]]
  command = ["C:/Users/test_user/Downloads/rand-master/rand-master/rand", "-config", "C:/Users/test_user/Downloads/rand-master/rand-master/plugin.conf"]
  signal = "none"

Then finally i ran it using: telegraf.exe --config telegraf.conf -test
But getting the following error

C:\Users\test_user\Downloads\telegraf-master\telegraf-master>telegraf.exe --config telegraf.conf -test
2020-07-28T16:58:38Z I! Starting Telegraf
2020-07-28T16:58:38Z I! [inputs.execd] Starting process: C:/Users/test_user/Downloads/rand-master/rand-master/rand [-config C:/Users/test_user/Downloads/rand-master/rand-master/plugin.conf]
2020-07-28T16:58:38Z E! [agent] Starting input inputs.execd: failed to start process [C:/Users/test_user/Downloads/rand-master/rand-master/rand -config C:/Users/test_user/Downloads/rand-master/rand-master/plugin.conf]: error starting process: exec: "C:/Users/test_user/Downloads/rand-master/rand-master/rand": file does not exist

What i am missing?

Please help!

[ssoroka]

Hi, a couple thoughts:

1. In windows the file should probably be called rand.exe, as this is normal for windows executable files. You can just rename the rand one, or regenerate it with go build -o rand.exe cmd/main.go
2. I'm not sure if the slash matters or not. Do forward slashes work in place of backslahes? Or do you need to do something like command = ["C:\\Users\\test_user\\Downloads\\rand-master\\rand-master\\rand.exe", "-config", "C:\\Users\\test_user\\Downloads\\rand-master\\rand-master\\plugin.conf"]?

Let me know where you're at after that.

[ashishkaransingh]

1. rand.ex

Hi @ssoroka,

Thank you for your response, greatly appreciate it.
Sure i will try and let you know.

Thanks Again

[ashishkaransingh]

Went little further, now getting the following error:
stderr: "Err loading input: toml: cannot load TOML value of type string into a Go integer"

C:\Users\test_user\Downloads\telegraf-master\telegraf-master>telegraf.exe --config telegraf.conf -test
2020-07-28T17:56:14Z I! Starting Telegraf
2020-07-28T17:56:14Z I! [inputs.execd] Starting process: C:\Users\test_user\Downloads\rand-master\rand-master\rand.exe [-config C:\Users\test_user\Downloads\rand-master\rand-master\plugin.conf]
2020-07-28T17:56:14Z E! [inputs.execd] stderr: "Err loading input: toml: cannot load TOML value of type string into a Go integer"
2020-07-28T17:56:14Z I! [inputs.execd] Process C:\Users\test_user\Downloads\rand-master\rand-master\rand.exe shut down
2020-07-28T17:56:14Z E! [telegraf] Error running agent: input plugins recorded 1 errors

[ssoroka]

You might have to share your toml. If you're using my rand demo, min and max are integers and should not be quoted in the config. It's possible there's a bug in the config loading somewhere. Try removing individual lines of the config until you can figure out which one is causing problems; possibly the sample_frequency, as I think some versions of Telegraf before 1.15.1 have bugs with config.Duration.

[ashishkaransingh]

I have already checked min and max are not quoted.

From plugin.conf

[[inputs.rand]]
	value_name = "value"
	min = 4
	max = 12
	sample_frequency = "1s"

[ashishkaransingh]

After removing "sample_frequency = "1s" did not get error but no output either?

2020-07-29T11:12:45Z I! Starting Telegraf
2020-07-29T11:12:45Z I! [inputs.execd] Starting process: C:\Users\test_user\Downloads\rand-master\rand-master\rand.exe [-config C:\Users\test_user\Downloads\rand-master\rand-master\plugin.conf]
2020-07-29T11:12:45Z I! [inputs.execd] Process C:\Users\test_user\Downloads\rand-master\rand-master\rand.exe shut down

[ssoroka]

By default, processed records aren't written to stdout. Try adding an output like this to see the results:

[[outputs.file]]
  files = ["stdout"]

I think the sample_frequency issue was related to a bug that should be resolved in the latest Telegraf.

Btw, you can probably get a faster response from me (or other helpful people) on the InfluxData community slack #telegraf channel.

[ssoroka]

I dug into this and was able to replicate your problems. I've patched the rand app to use the latest Telegraf version, and I'll dig into what was going on with the duration setting, which is still an outstanding issue for now. Let me know if you have any further issues.

[ashishkaransingh]

No further issues on this, thanks!