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Cortex notification error
critical

Description Cortex is failing when sending alert notifications (instance {{ $labels.instance }})
Query 
>>>
	
				
					
					
						rate
					
				
			
				
					(
				
			
				
					
				
			
				
					[5m]) > 0
Query Explanation

The query computes the per‑second rate of cortex_prometheus_notifications_errors_total over the last 5 minutes and fires when this rate is greater than 0, meaning that at least one notification error has occurred in that window. The alert is triggered as soon as Cortex records any alert‑notification failure within the past 5 minutes.

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