llm_retry_fallbackTier 1 · 70% confidence

ai-agents-llm-retry-fallback-ollama-call-intermittently-returns-http-400-error--12d3bbee

agent: ai_agents

When does this happen?

IF Ollama call intermittently returns HTTP 400 error with 'unexpected server status: 1' during LLM generation in LangChain.

How others solved it

THEN Wrap the LangChain chain with `.with_retry()` to automatically retry on transient failures. Alternatively, use `.with_fallbacks()` with a duplicate chain. This mitigates sporadic errors without changing the underlying model.

rag_chain = prompt | llm | StrOutputParser()
rag_chain = rag_chain.with_retry()

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