AWS S3 PutObjectCommand extremely slow

[HuakunShen]

Version: Deno 2.1.7

I am using "@aws-sdk/client-s3": "npm:@aws-sdk/[email protected]", to upload files to S3.

Here is sample code, uploading a 4KB file takes 6 seconds. The time is taken on step s3Client.send(command);.

I also tried uploading a 100MB file, took ~7.5 second. So the upload speed seems fine. Could it be issue with connection establish?

I ran the same code with bun, took 0.8ms to upload a 4KB file.

import { S3Client, PutObjectCommand } from '@aws-sdk/client-s3';

// Configure the S3 client
const s3Client = new S3Client({
	region: Deno.env.get('AWS_REGION') || 'us-east-1',
	credentials: {
		accessKeyId: Deno.env.get('AWS_ACCESS_KEY_ID') || '',
		secretAccessKey: Deno.env.get('AWS_SECRET_ACCESS_KEY') || ''
	}
});

// Function to upload a file to S3
async function uploadFileToS3(bucketName: string, key: string, filePath: string) {
	try {
		// Read the file
		const fileContent = await Deno.readFile(filePath);

		const command = new PutObjectCommand({
			Bucket: bucketName,
			Key: key,
			Body: fileContent
		});
		console.time('send');
		const response = await s3Client.send(command);
		console.timeEnd('send');
		console.log('File uploaded successfully:', response);
	} catch (error) {
		console.error('Error uploading file:', error);
		throw error; // Re-throw the error for better error handling
	}
}

// Example usage
const bucketName = Deno.env.get('AWS_BUCKET_NAME') || '';
await uploadFileToS3(
	bucketName,
	'wacv24-2686.mp4',
	'/Users/hk/Downloads/wacv24-2686.mp4'
);

[HuakunShen]

Reproducible on M4 pro Mac, and x86 Ubuntu 22, didn't try Windows yet.

[bartlomieju]

We believe this was the same problem as in #27239 which should be now fixed by #27381. Please try out latest canary (deno upgrade --canary) and let me know if the problem persists.