Traces not persisted in GCS?

Grafana Tempo
1

Hi; I’ve deployed Tempo to a Kubernetes cluster, but it doesn’t seem to be persisting traces. I have the following in my tempo-config ConfigMap:

storage:
 trace:
   backend: gcs
   gcs:
     bucket_name: commure-grafana
     prefix: traces

tempo_cluster_seed.json is the only thing that has been written to the bucket.
I can ingest a trace, and it shows up in Grafana, but it is lost if I restart the tempo-ingester-* pods (after which it no longer shows in Grafana), and there’s no data AFAICT being written to GCS.

The ingester pods aren’t emitting any errors, AFAICT.