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Phoenix Support

Issue with Langchain Agent Executor Trace Connection

·Mar 06, 2025 02:59 PM

I connected the trace to the langchain agen executor, but I don't see anything

tracer_provider = register(
    space_id="",  # in app space settings page
    api_key="",  # in app space settings page
    project_name="chat-bot-test",  # name this to whatever you would like
)

LangchainInstrumentor().instrument(tracer_provider=tracer_provider)

1 comment

· Sorted by Oldest

RunLLM
APP
·
Ensure that the `LangChainInstrumentor` is correctly initialized before any LangChain code is executed. This is crucial for the traces to be captured. Additionally, verify that the `PHOENIX_COLLECTOR_ENDPOINT` is correctly set to point to your Phoenix server's endpoint. According to the <https://docs.arize.com/phoenix/tracing/integrations-tracing/langchain|LangChain integration guide>, the endpoint should be specified in the `register` function if you are using a local instance. If the issue persists, check the network accessibility to ensure that the Phoenix server is reachable from your application. You can test this by making a simple HTTP request to the Phoenix server's endpoint. Also, review the Phoenix server logs for any errors or warnings that might indicate why traces are not being collected. Would you like more detail on any of these steps? Sources: - <https://docs.arize.com/phoenix/tracing/integrations-tracing/langchain|LangChain integration guide>
💡 Hint: Mention RunLLM in the thread for followups.