Adding prometheus exemplars as annotations

[Sandes de Silva]

Hi,

Has anyone had any luck writing prometheus (OpenMetrics) exemplars as annotations to M3? I have prometheus set up with the Open Metrics parser and the data values are being written to m3; however, the trace ID I sent as exemplars are not being written. Not sure if I need to make any remote_write configs on Prometheus or configure something in m3. 

For context, here's the tutorial I'm following: https://static.sched.com/hosted_files/kccncna19/2e/Deep%20Linking%20Metrics%20and%20Traces%20with%20OpenTelemetry%2C%20OpenMetrics%2C%20Prometheus%20and%20M3%20%281%29.pdf

Both instances are running in docker

Prom config (remote write/read)

m3db config: default config used by that docker image. 

Any ideas?