rometheus.</p><p>Our recommendation for multicluster monitoring of Istio with Prometheus is built upon the foundation of Prometheus
<a href=https://prometheus.io/docs/prometheus/latest/federation/#hierarchical-federation>hierarchical federation</a>.
Prometheus instances that are deployed locally to each cluster by Istio act as initial collectors that then federate up
to a production mesh-wide Prometheus instance. That mesh-wide Prometheus can either live outside of the mesh (external), or in one
of the clus