Seeing "no data" after upgrading to grafana 8.0.0

[aschleifer]

Today grafana 8.0.0 came out and after upgrading out alertmanager dashboard shows no data:

We are using the latest release (1.0.0) of this data source.

Is this an error on our side or an incompatibility between this data source and grafana 8?

[CatShadow44]

Hi,
the same for me,
it was ok with verison 0.0.8 and grafana 7
prometheus and alert manager are ok with node exporter
anyone can help please?

[jjneely]

I've upgraded Grafana 7.3.3 to 7.5.3 and the upgrade grabbed the Alertmanager datasource 1.0.0. All I see for all Alertmanager queries is "no data"

[jjneely]

This problem is caused by added features on the query panel that the older JSON definition doesn't include. There is a toggle for selecting "active" alerts that was off...thus showing no data. Turning it on showed me the expected active alerts.

[CatShadow44]

This problem is caused by added features on the query panel that the older JSON definition doesn't include. There is a toggle for selecting "active" alerts that was off...thus showing no data. Turning it on showed me the expected active alerts.

In my case, i activated this "active alert" switch. No more result, always 'no data'

[aschleifer]

This problem is caused by added features on the query panel that the older JSON definition doesn't include. There is a toggle for selecting "active" alerts that was off...thus showing no data. Turning it on showed me the expected active alerts.

Changing the queries to "active" doesn't change anything for me.

[aschleifer]

Hm maybe this should be reflected in https://grafana.com/grafana/dashboards/8010 which is the dashboard I use for the alertmanager data source

[CatShadow44]

i saw something strange:
when you display data as table, the result is ok.
when you want stats, there is no data

the query inspector, in all case, show the objects

[wHiteeeeeeeee]

Yes, that's right. When switch to table it shows all alerts. If single stat - "no data"

[CatShadow44]

when can bypass the issue adding fields from calculation but it's not very convenient

[peppermor]

Same story here got data after setting active to true but only on table

[cryptobioz]

For singlestat panels, you must do a transformation. Edit your panel, click on "Transform", click on "Reduce", then change the "Calculations" to "Count".

[cryptobioz]

I just added a documentation regarding this configuration: https://github.com/camptocamp/grafana-prometheus-alertmanager-datasource#singlestat