I'm running kubernetes v1.7.10, and Istio 1.0.4, and also, kiali v0.9, which bundled with istio 1.0.4.

Then I deployed bookinfo example into a namespace, gateway points to the bookinfo service, and accessed the productpage homepage from a browser, all were fine.

But, from Graph view of kiali, just a diamon icon with label "unknown" displayed. what's wrong with it?

I can see all the services, workloads, istio configs on the Kiali, just no topology.

At last, I traced back to the prometheus metrics, something like:

istio_requests_total{connection_security_policy="none",destination_app="unknown",destination_principal="unknown",destination_service="details.test.svc.cluster.local",destination_service_name="details",destination_service_namespace="test",destination_version="unknown",destination_workload="unknown",destination_workload_namespace="unknown",instance="172.22.178.111:42422",job="istio-mesh",reporter="destination",request_protocol="http",response_code="200",source_app="unknown",source_principal="unknown",source_version="unknown",source_workload="unknown",source_workload_namespace="unknown"}

I noticed that they were all "unknown", destination_app, destination_version, source_app, source_version ... , I believe that's why no topo displayed.

And the metrics from http://istio-telemetry:42422/metrics:

istio_requests_total{connection_security_policy="none",destination_app="unknown",destination_principal="unknown",destination_service="details.test.svc.cluster.local",destination_service_name="details",destination_service_namespace="test",destination_version="unknown",destination_workload="unknown",destination_workload_namespace="unknown",reporter="destination",request_protocol="http",response_code="200",source_app="unknown",source_principal="unknown",source_version="unknown",source_workload="unknown",source_workload_namespace="unknown"} 32

Then I did another testing, I setup a cluster of kubernetes v1.10.3, and installed istio 1.0.4 into it, deployed bookinfo examples, everything is fine, with a beatiful topo graph.

So, I doubt is there anyting different between the kubernetes versions that break the graph view of kiali?

Can someone give any hints?

thanks.

likun