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Prometheus AlertManager E2E dead man switch
critical

Description Prometheus DeadManSwitch is an always-firing alert. It's used as an end-to-end test of Prometheus through the Alertmanager.
Query 
>>>
	
				
					
					
						vector
					
				
			
				
					(1)
Query Explanation

The vector(1) query creates a synthetic, instant vector with a single sample whose value is 1, causing this alert to always fire. This rule is designed to continuously fire, acting as an end-to-end test to ensure Prometheus and Alertmanager are correctly processing and routing alerts.

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