[node-http-handler 100-continue] When an error occurs in the request, there is no waiting time for the cotinue event

[bcshmily]

Checkboxes for prior research

• I've gone through Developer Guide and API reference
• I've checked AWS Forums and StackOverflow.
• I've searched for previous similar issues and didn't find any solution.

Describe the bug

When an error occurs in the request, there is no waiting time for the cotinue event,
If the socketTimeout set is relatively long, Lambda will timeout

SDK version number

@aws-sdk/node-http-handler": "3.344.0"

Which JavaScript Runtime is this issue in?

Node.js

Details of the browser/Node.js/ReactNative version

v18.16.0

Reproduction Steps

set socketTimeout of S3Client  to 15 minute
s3 = new S3Client({
      apiVersion: "2006-03-01",
      requestHandler: new NodeHttpHandler({
        socketTimeout: 15 * 60 * 1000
      }),
    });

Usually, uploading files only takes one minute, but sometimes Lambda times out

    const parallelUploadS3 = new Upload({
      client: s3,
      params: {
        Bucket: bucket,
        Key: key,
        Body: body
      }
    });
    await parallelUploadS3.done();

Observed Behavior

Lambda timeout

Expected Behavior

The file can be uploaded successfully

Possible Solution

Possible reason: When an error occurs in the request, there is no waiting time for the cotinue event, so the configured 15 minute timeout will be applied

packages/node-http-handler/src/write-request-body.ts

export async function writeRequestBody(
  httpRequest: ClientRequest | ClientHttp2Stream,
  request: HttpRequest,
  maxContinueTimeoutMs = MIN_WAIT_TIME
): Promise<void> {
  const headers = request.headers ?? {};
  const expect = headers["Expect"] || headers["expect"];

  let timeoutId = -1;
  let hasError = false;
  if (expect === "100-continue") {
    await Promise.race<void>([
      new Promise((resolve) => {
        timeoutId = Number(setTimeout(resolve, Math.max(MIN_WAIT_TIME, maxContinueTimeoutMs)));
      }),
      new Promise((resolve) => {
        httpRequest.on("continue", () => {
          clearTimeout(timeoutId);
          resolve();
        });
        httpRequest.on("error", () => {
          hasError = true;
          clearTimeout(timeoutId);
          resolve();
        });
      }),
    ]);
  }
  if(!hasError) {
      writeBody(httpRequest, request.body);
  }
}

Additional Information/Context

v3.329.0 is work fine.

[kuhe]

released in https://github.com/aws/aws-sdk-js-v3/releases/tag/v3.350.0