Bad gateway when customer upload s3 file

Based on the information provided, it appears that you're encountering a "Bad Gateway" error when attempting to upload files to Amazon S3 using an S3 File Gateway. This error suggests there might be an issue with the connection between your File Gateway and the S3 service. Here are some steps to investigate and potentially resolve the issue:

1. Check the File Gateway's health: Monitor the CloudWatch metrics for your File Gateway, particularly the "FileSharesUnavailable" metric. If this metric shows a non-zero value, it indicates that one or more file shares are in an unavailable state, which could cause upload failures.

2. Verify permissions: Ensure that the IAM role associated with your File Gateway has the necessary permissions to write to the S3 bucket. This includes checking if the role has the required S3 permissions and, if you're using SSE-KMS encryption, the appropriate KMS permissions.

3. Check S3 bucket accessibility: Verify that the S3 bucket exists and is accessible from the File Gateway. Make sure the bucket name complies with Amazon S3 naming rules.

4. Monitor upload failures: Look at the "FilesFailingUpload" metric in CloudWatch. This metric tracks the number of files failing to upload to AWS. If this metric shows a non-zero value, check the health notifications for more detailed information about the upload failures.

5. Verify network connectivity: Ensure that your File Gateway has a stable network connection to AWS services. Check for any network-related issues that might be causing the "Bad Gateway" error.

6. Check Object Ownership settings: If you're working with objects uploaded by users from different AWS accounts, verify that the Object Ownership setting for your S3 bucket is set to "Bucket owner enforced" rather than "Object writer". This ensures that the File Gateway can access all objects in the bucket regardless of which account uploaded them.

7. Review gateway logs: Check the File Gateway's logs for any error messages or warnings that might provide more insight into the cause of the upload failures.

If the issue persists after checking these points, you may need to contact AWS Support for further assistance in diagnosing and resolving the problem.
Sources
Troubleshooting: File Gateway issues - AWS Storage Gateway
Troubleshooting: file share issues - AWS Storage Gateway
Monitoring your S3 File Gateway - AWS Storage Gateway
Why can't my S3 File Gateway access objects uploaded by cross-account users? | AWS re:Post

Hello,

To begin with your query, This error log indicates an issue with uploading and encrypting data to Amazon S3. The main problem appears to be a "BadGateway" error, which suggests a network or connectivity issue between your application and Amazon S3. Here's a breakdown of the error and some potential solutions:

Error Type: AmazonS3Exception with BadGateway error code

Root Cause: The error message states "Error making request with Error Code BadGateway and Http Status Code BadGateway. No further error information was returned by the service."

The error log indicates an AmazonS3Exception with a BadGateway error code, suggesting a network or connectivity issue between your application and Amazon S3. The root cause is described as "Error making request with Error Code BadGateway and Http Status Code BadGateway. No further error information was returned by the service." Possible reasons include network connectivity issues, temporary AWS service disruptions, firewall or proxy settings blocking the connection, or DNS resolution problems. To address this, several solutions are recommended: check your network connection and firewall settings; implement an exponential backoff retry strategy; verify AWS credentials and permissions; check the AWS Service Health Dashboard for S3 issues for the mentioned date; review your S3 client configuration, including the correct endpoint and up-to-date SDK; investigate any proxy or VPN settings that might interfere with AWS requests; verify DNS resolution, especially for S3 endpoints; and implement more detailed logging and monitoring, possibly using AWS CloudWatch. These steps should help isolate and resolve the issue.

But if the problem persists, and in case you have additional or follow-up queries regarding the issue, we may require details that are non-public information to reproduce the above issue to address it. Please open a support case with AWS using the following link.