How do I select from InfluxDB 2.0 the list of hosts?

Grafana InfluxDB
1

I want to create a variable in grafana that displays a list with all the hosts using a query.

I used the following flux query, but with no results:

IMG-20200711-WA0003
IMG-20200711-WA00031279×822 93.4 KB

What should I put in the Query caset?

Additional info: if I put the same query in a Grafana panel, it displays the output:

IMG-20200711-WA0002
IMG-20200711-WA00021496×736 84.3 KB

I am using:
Influxdb version 2.0 beta
Telegraf version 1.14
Grafana version 7.05

Thanks

2

I am having a similar problem since upgrading to Grafana 7.1 when looking for a set of tag values.

In Grafana 6.5 I used a query variable like this:

import "influxdata/influxdb/v1"

v1.measurementTagValues(
  bucket: "R757",
  measurement: "syslog",
  tag: "severity"
)

But in Grafana 7.1 I get an error:
image

Seems like a bug to me…