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Prometheus timeseries cardinality
warning

Description The "{{ $labels.name }}" timeseries cardinality is getting very high: {{ $value }}
Query 
>>>
	
				
					
					
						label_replace
					
				
			
				
					(count by(__
				
			
				
					
				
			
				
					__) ({__
				
			
				
					
				
			
				
					__=~".+"}), "
				
			
				
					
				
			
				
					", "$1", "__
				
			
				
					
				
			
				
					__", "(.+)") > 10000
Query Explanation

The rule counts the total number of distinct metric names (__name__) across all scraped series and fires when that count exceeds 10,000, indicating unusually high timeseries cardinality. It triggers whenever the total unique metric name count is greater than 10 000.

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