on_retriever_error() — langchain Function Reference

Architecture documentation for the on_retriever_error() function in base.py from the langchain codebase.

Function python Observability Tracers calls 3 called by 1

Entity Profile

Observability→ Tracers→ on_retriever_error() — langchain Function Reference

Dependency Diagram

graph TD
  6f1c7411_43d8_9ca5_c023_0defba7f4a65["on_retriever_error()"]
  0f6b3261_31fa_c34e_ca33_cb141bdf78ff["BaseTracer"]
  6f1c7411_43d8_9ca5_c023_0defba7f4a65 -->|defined in| 0f6b3261_31fa_c34e_ca33_cb141bdf78ff
  79863a74_2a4c_2d7c_9447_4f06d9be097d["on_retriever_error()"]
  79863a74_2a4c_2d7c_9447_4f06d9be097d -->|calls| 6f1c7411_43d8_9ca5_c023_0defba7f4a65
  9191b24f_a202_df21_16c5_e2608083aef8["_end_trace()"]
  6f1c7411_43d8_9ca5_c023_0defba7f4a65 -->|calls| 9191b24f_a202_df21_16c5_e2608083aef8
  ed3a7128_10bb_fbbc_fa3a_9edc40fc7f5a["_on_retriever_error()"]
  6f1c7411_43d8_9ca5_c023_0defba7f4a65 -->|calls| ed3a7128_10bb_fbbc_fa3a_9edc40fc7f5a
  79863a74_2a4c_2d7c_9447_4f06d9be097d["on_retriever_error()"]
  6f1c7411_43d8_9ca5_c023_0defba7f4a65 -->|calls| 79863a74_2a4c_2d7c_9447_4f06d9be097d
  style 6f1c7411_43d8_9ca5_c023_0defba7f4a65 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/tracers/base.py lines 475–498

    def on_retriever_error(
        self,
        error: BaseException,
        *,
        run_id: UUID,
        **kwargs: Any,
    ) -> Run:
        """Run when `Retriever` errors.

        Args:
            error: The error.
            run_id: The run ID.
            **kwargs: Additional arguments.

        Returns:
            The run.
        """
        retrieval_run = self._errored_retrieval_run(
            error=error,
            run_id=run_id,
        )
        self._end_trace(retrieval_run)
        self._on_retriever_error(retrieval_run)
        return retrieval_run