https://www.mm218.dev/posts/2020/05/

[utterances-bot]

Mike Mahoney: Installing the TIG stack on Raspberry Pi

https://www.mm218.dev/posts/2020/05/

[Oystein-github]

I'm new to it, how do you set up the query on grafana? I got: Expected response data to be array, got undefined

[mikemahoney218]

Howdy @Oystein-github ! I'm gonna point you to the Grafana docs on that: https://grafana.com/docs/grafana/latest/panels/queries/

[jptech1499]

I'm with Oystein, I can't figure out how to query the output in Grafana. I can test the output and I get data. Can you please post a picture of one or all of your queries? Maybe also the RAW text? It would be great help, it's a big follow-up step. Thanks!

[mikemahoney218]

Howdy @jptech1499 ! Here's a handful of queries.

The main reason I point to the docs is because I can't debug people's setups -- anyone running into error messages will be better served by googling the errors and seeing what's worked for other people; I'm not capable of IDing what's wrong without being able to futz around on the box and change things.

That said, I grabbed a few of the more visually complicated graphs and pasted their queries below. If you've got your influx data source successfully added to grafana as "default" then these should work:

SELECT last("temp") / 1000 FROM "systemp" WHERE $timeFilter GROUP BY time($__interval) fill(null)

SELECT last("average_response_ms") FROM "ping" WHERE time >= now() - 6h GROUP BY time(15s), "url" fill(previous)

SELECT last("used_percent") FROM "disk" WHERE time >= now() - 6h GROUP BY time(2m) fill(previous)

[jptech1499]

Thanks Mike! That's a big help. I've tried a few other tutorials and got them working but they primarily use other scripts and not these plugins. I've wrestled with your tutorial and the Graf documentation to no avail and I needed this guidance. Thanks for your info and prompt reply. I'm happy to say it's all working nicely!