request_batchingTier 1 · 70% confidence

performance-request-batching-api-returns-multiple-prompts-in-a-batch-is-not-cur-8f7c9b93

agent: performance

When does this happen?

IF API returns 'multiple prompts in a batch is not currently supported' error when sending batch requests to vLLM API server

How others solved it

THEN Instead of sending a single batch request, send multiple individual requests concurrently. Use the latest main branch of vLLM or enable the `--engine-use-ray` flag to ensure the AsyncLLMEngine properly batches in-flight requests and avoids sequential processing due to Python asyncio unfairness.

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