Missing alert thresholds

Grafana Alerting
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1

Hi,

I’ve returned to Grafana having not used since v7. In v9.4.7 (latest), alert threshold lines are no longer displayed on chart panels. They preview fine in the alert rule:

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but in the panel, red horizontal line is not shown:

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I’d like to be able to quickly visualise proximity to alerts in dashboards without having to edit & preview alerts. “Alert thresholds” are enabled in this panel:

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Any ideas? Is this a regression since v7.x or am I missing something? Many thanks.

2

hi @banana

I am afraid this feature belonged to the old graph panel which is now deprecated, and it is not available in the current time-series panel

As a workaround, you can manually create a threshold and give it the same limit that your alert rule has. It’s manual work and not ideal but I could not think of any other visual way to get a line in the panels.

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3

Not very DRY Antonio. Grafana is a visualisation tool, and it’s no longer possible to see alerts in panels. Quite a major regression, no?

This along with the fact it’s now impossible to edit provisioned alerts nor export them (individually) into code, means from where I’m sitting, Unified Alerts are a step backwards. I can see people like me being stranded on v9.x (which still supports Legacy Alerts) for a long time - until Unified Alerts are equally gitops-friendly and observable.

4

good news @banana

i reached out internally and it turns out that there is actually a PR in place that will add threshold visualisations. so there is no need to edit an alert rule to view the thresholds.

marking this topic as solved :white_check_mark:

5

Revisiting unified alerts after a hiatus using “legacy” alerts. Still can’t get alert threshold to display in charts. Tried Prometheus and GCM datasource graphs. Is this still broken? If so, I’ll return to “legacy”.

6

“is not available in the current time-series panel” - indeed, workaround is changing panel’s “type” to “graph” in the dashboard json. Hardly intuitive. You can’t select graph panel type from within the panel UI:
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and you’ve deprecated this type, so after changing the json to “graph”, see a warning:

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I can’t see any open issue for introducing alert thresholds to timeseries panels. Closest I’ve found are:

My javascript isn’t good enough to figure whether there’s a workaround from these. Any suggestions @antonio or should I create a new bug fix issue? I hope you’re not going to remove graph panels until there’s a way of viewing alert thresholds without them.

7

hi @banana

I checked with the Alerting team and, for now, visualizing thresholds in time-series panels is not in the roadmap.

You are welcome to open a new feature request and, if the community supports it, the team will be open to revisit implementing the feature.