Parseable cannot parse OTLP data without `schemaUrl`

[MatthiasRoels]

When wiring up Parseable (OSS) with OpenTelemetry (configured with a TargetAllocator to be able to scrape Prometheus ServiceMonitor resources), I get the following error:

parseable::handlers::http::modal::utils::ingest_utils:152: Ingestion failed for stream kubernetes-metrics: Could not deserialize into JSON object, missing field `schemaUrl`

I think the problem is Parseable’s OTLP/JSON deserialization behavior: it treats the optional schemaUrl JSON field as required. The Collector correctly omits an empty proto3 string during JSON encoding, ref.

Parseable image: quay.io/parseablehq/parseable:v2.9.4

[parmesant]

Looking at the Rust crate for otel-proto -
https://github.com/open-telemetry/opentelemetry-rust/blob/48c5637cafcb8cefd26613f5082a2830a56304af/opentelemetry-proto/src/proto/tonic/opentelemetry.proto.metrics.v1.rs#L64

I guess it is not optional here hence the failure

[parmesant]

https://logg.ing/community
Would love to have a quick chat with you on our Slack 😄

[MatthiasRoels]

I just joined so you can ping me if you want