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LLM Observability in the Wild – Why OpenTelemetry Should Be the Standard

(signoz.io)
144 points pranay01 | 1 comments | 27 Sep 25 18:56 UTC | HN request time: 0s | source
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CuriouslyC ◴[27 Sep 25 19:37 UTC] No.45398725[source]▶
A full observability stack is just a docker compose away: Otel + Phoenix + Clickhouse and off to the races. No excuse not to do it.
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pranay01 ◴[27 Sep 25 20:36 UTC] No.45399127[source]▶
one of the cases we have observed is that Phoenix doesn't completely stick to OTel conventions.

More specifically, one issue I observed is how it handles span kinds. If you send via OTel, the span Kinds are classified as unknown

e.g. The Phoneix screenshot here - https://signoz.io/blog/llm-observability-opentelemetry/#the-...

replies(3): >>45399660 #>>45399902 #>>45400349 #
1. cephalization ◴[27 Sep 25 23:47 UTC] No.45400349[source]▶
Phoenix ingests any opentelemetry compliant spans into the platform, but the UI is geared towards displaying spans whose attributes adhere to “openinference” naming conventions.

There are numerous open community standards for where to put llm information within otel spans but openinference predates most of em.