Istio Error Flag
HTTP and TCP Long name Short name Description NoHealthyUpstream UH No healthy upstream hosts in upstream cluster in addition to 503 response code. UpstreamConnectionFailure UF Upstream connection failure in addition to 503 response code. UpstreamOverflow UO Upstream overflow (circuit breaking ) in addition to 503 response code. NoRouteFound NR No route configured for a given request in addition to 404 response code or no matching filter chain for a downstream connection. UpstreamRetryLimitExceeded URX The request was rejected because the upstream retry limit (HTTP) or maximum connect attempts (TCP) was reached. NoClusterFound NC Upstream cluster not found. DurationTimeout DT When a request or connection exceeded max_connection_duration or max_downstream_connection_duration . HTTP only ...