RequestEntityTooLargeException aws resource_error ai_generated true

ClientError: An error occurred (RequestEntityTooLargeException) when calling the InvokeWithResponseStream operation: Response payload size exceeded maximum allowed payload size (6291556 bytes)

ID: aws/lambda-invoke-response-stream-too-large

Also available as: JSON · Markdown · 中文
82%Fix Rate
86%Confidence
1Evidence
2024-01-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
Lambda 2015-03-31 active — — —
AWS SDK for JavaScript 3.600.0 active — — —
Node.js 20.x active — — —

Root Cause

Lambda response streaming payload exceeded the 6 MB limit for streamed responses, causing the invocation to fail.

generic

中文

Lambda 响应流式传输负载超过了 6 MB 的流式响应限制，导致调用失败。

Official Documentation

https://docs.aws.amazon.com/lambda/latest/dg/invocation-response-streaming.html

Workarounds

  1. 82% success Split the response into multiple chunks using Lambda response streaming, sending smaller payloads per chunk, or use pagination in the client to request data in parts. 
    Split the response into multiple chunks using Lambda response streaming, sending smaller payloads per chunk, or use pagination in the client to request data in parts.
  2. 90% success Store the large response in S3 and return a pre-signed URL to the client, avoiding the Lambda response size limit altogether. 
    Store the large response in S3 and return a pre-signed URL to the client, avoiding the Lambda response size limit altogether.

中文步骤

  1. 使用 Lambda 响应流式传输将响应拆分为多个块，每个块发送较小的负载，或在客户端使用分页来分部分请求数据。
  2. 将大响应存储在 S3 中，并向客户端返回预签名 URL，完全避免 Lambda 响应大小限制。

Dead Ends

Common approaches that don't work:

  1. Increase the Lambda function's timeout or memory. 90% fail

    The error is about payload size, not execution duration or memory.

  2. Use synchronous Invoke instead of InvokeWithResponseStream. 70% fail

    Synchronous Invoke has a 6 MB limit as well, and the error will persist.

  3. Compress the response payload with gzip. 60% fail

    Lambda does not automatically decompress gzip; the client would need to handle it, and the limit applies to the raw payload before compression.