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MongoDB too many connections
warning

Description Too many connections (> 80%)
Query for 2m 
>>>
	
				
					avg by(instance) (
				
			
				
					
					
						rate
					
				
			
				
					(
				
			
				
					
				
			
				
					{conn_type="current"}[1m])) / avg by(instance) (sum (
				
			
				
					
				
			
				
					) by (instance)) * 100 > 80
Query Explanation

The rule computes, per MongoDB instance, the percentage of currently open connections (rate(mongodb_ss_connections{conn_type="current"}[1m])) relative to the total configured connections (sum(mongodb_ss_connections)) and triggers the alert when this percentage exceeds 80 %.

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