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Istio latency 99 percentile
warning

Description Istio 1% slowest requests are longer than 1000ms.
Query for 1m 
>>>
	
				
					
					
						histogram_quantile
					
				
			
				
					(0.99, 
				
			
				
					
					
						sum
					
				
			
				
					(
				
			
				
					
					
						rate
					
				
			
				
					(
				
			
				
					
				
			
				
					[1m])) by (destination_canonical_service, destination_workload_namespace, source_canonical_service, source_workload_namespace, le)) > 1000
Query Explanation

The query computes the 99th‑percentile request latency (using histogram_quantile(0.99, …)) for each source‑to‑destination service pair over the past minute, and the alert triggers when any of those 99th‑percentile latencies exceed 1000 ms.

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