PromQL Alerts: Google GCE #1162
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lyanco
requested changes
Sep 19, 2025
| "displayName": "High Reservation Utilization", | ||
| "conditionPrometheusQueryLanguage": { | ||
| "duration": "0s", | ||
| "evaluationInterval": "300s", |
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These should be swapped - evaluation interval 60s duration 300s
I believe the intention was to only fire if used/reserved is true for 5 minutes. and this metric is emitted every 60s
| "conditionPrometheusQueryLanguage": { | ||
| "duration": "0s", | ||
| "evaluationInterval": "300s", | ||
| "query": "count_over_time(\n (\n ({\"compute.googleapis.com/reservation/used\", monitored_resource=\"compute.googleapis.com/Reservation\"}\n / on (reservation_id)\n {\"compute.googleapis.com/reservation/reserved\", monitored_resource=\"compute.googleapis.com/Reservation\"}\n ) <= 0.1\n )[23h:5m]\n) > (20 * 12) # 20 hours * (12 5 min intervals in hour)" |
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This looks right to me but I'd like joshuapollock@ to take a look
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This PR updates Google GCE alerts to use PromQL instead of the deprecated MQL.
Note that we included on (reservation_id) in the PromQL versions of the query, which is not a part of the original MQL. This is because without the inclusion of this expression, the PromQL data does not appear; see the screenshots for an example.
MQL:
PromQL:
