on_llm_error() — langchain Function Reference

Architecture documentation for the on_llm_error() function in manager.py from the langchain codebase.

Function python Observability CallbackManager calls 2 called by 1

Entity Profile

Observability→ CallbackManager→ on_llm_error() — langchain Function Reference

Dependency Diagram

graph TD
  8656516c_f1cc_451d_5ba7_c245448ce87d["on_llm_error()"]
  a2d4d2d4_52ab_0e90_145b_14769a61a7d9["CallbackManagerForLLMRun"]
  8656516c_f1cc_451d_5ba7_c245448ce87d -->|defined in| a2d4d2d4_52ab_0e90_145b_14769a61a7d9
  d048a783_3474_9659_8d90_9c136dd64460["on_llm_error()"]
  d048a783_3474_9659_8d90_9c136dd64460 -->|calls| 8656516c_f1cc_451d_5ba7_c245448ce87d
  d048a783_3474_9659_8d90_9c136dd64460["on_llm_error()"]
  8656516c_f1cc_451d_5ba7_c245448ce87d -->|calls| d048a783_3474_9659_8d90_9c136dd64460
  8964b4e9_440e_18a7_2a15_a54a0b2b733c["handle_event()"]
  8656516c_f1cc_451d_5ba7_c245448ce87d -->|calls| 8964b4e9_440e_18a7_2a15_a54a0b2b733c
  style 8656516c_f1cc_451d_5ba7_c245448ce87d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 725–750

    def on_llm_error(
        self,
        error: BaseException,
        **kwargs: Any,
    ) -> None:
        """Run when LLM errors.

        Args:
            error: The error.
            **kwargs: Additional keyword arguments.

                - response (LLMResult): The response which was generated before
                    the error occurred.
        """
        if not self.handlers:
            return
        handle_event(
            self.handlers,
            "on_llm_error",
            "ignore_llm",
            error,
            run_id=self.run_id,
            parent_run_id=self.parent_run_id,
            tags=self.tags,
            **kwargs,
        )