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Prometheus job missing
warning

Description A Prometheus job has disappeared
Query 
>>>
	
				
					
					
						absent
					
				
			
				
					(
				
			
				
					
				
			
				
					{job="prometheus"})
Query Explanation

This alert uses the absent() function to detect if the Prometheus server is no longer scraping its own 'up' metric. The alert triggers when no series for up{job="prometheus"} can be found, indicating that the Prometheus instance itself has stopped running, crashed, or its self-scraping configuration is broken.

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