no values found for istio metric request-success-rate

[mark8s]

I ran into a problem that seems to have happened to many others, the details of the problem are:

   Warning Synced 6m14s (x3 over 11m) flagger Halt advancement no values found for istio metric request-success-rate probably podinfo.test is not receiving traffic: running query failed: no values found

Why does this problem occur? How to solve it, does anyone know?

My istio version is 1.11, and prometheus is installed accordingly.

[frankjkelly]

For us the issue was evident when we looked in Prometheus for the appropriate metrics https://docs.flagger.app/faq#http-requests-success-rate-percentage

In our case

1. The metric istio_requests_total was not being pushed to prometheus
2. Once we fixed that we noticed the label reporter="destination" on the query was also being dropped