on_retriever_error() — langchain Function Reference

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

Function python Observability CallbackManager calls 2 called by 1

Entity Profile

Observability→ CallbackManager→ on_retriever_error() — langchain Function Reference

Dependency Diagram

graph TD
  74659e38_64dc_e4e3_f73a_4f37bf2e3617["on_retriever_error()"]
  82df64fa_9476_ca75_2418_6e604ac0eb10["CallbackManagerForRetrieverRun"]
  74659e38_64dc_e4e3_f73a_4f37bf2e3617 -->|defined in| 82df64fa_9476_ca75_2418_6e604ac0eb10
  f6600b06_da0e_bfc5_0472_770b37ccb297["on_retriever_error()"]
  f6600b06_da0e_bfc5_0472_770b37ccb297 -->|calls| 74659e38_64dc_e4e3_f73a_4f37bf2e3617
  f6600b06_da0e_bfc5_0472_770b37ccb297["on_retriever_error()"]
  74659e38_64dc_e4e3_f73a_4f37bf2e3617 -->|calls| f6600b06_da0e_bfc5_0472_770b37ccb297
  8964b4e9_440e_18a7_2a15_a54a0b2b733c["handle_event()"]
  74659e38_64dc_e4e3_f73a_4f37bf2e3617 -->|calls| 8964b4e9_440e_18a7_2a15_a54a0b2b733c
  style 74659e38_64dc_e4e3_f73a_4f37bf2e3617 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 1203–1226

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

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

        """
        if not self.handlers:
            return
        handle_event(
            self.handlers,
            "on_retriever_error",
            "ignore_retriever",
            error,
            run_id=self.run_id,
            parent_run_id=self.parent_run_id,
            tags=self.tags,
            **kwargs,
        )