Why is MetaDefender Storage Security not transferring S3 object metadata?

Issue

When processing S3 objects, the objects' metadata is not being transferred after processing and remediation actions.

Cause

• The option "Transfer file metadata and checksum on created files" is not enabled.

• Missing S3 permissions: GetObject, PutObject

• Transferring System-defined metadata is not supported; only User-defined metadata is supported.

  • For example: System-defined metadata such as Content-Type and Content-Disposition cannot be transferred by MDSS, but User-Defined metadata such as x-amz-meta-xxx can be transferred.

Resolution

Double-check the following:

• S3 permissions: Ensure that the necessary GetObject and PutObject permissions are configured.
• MDSS settings: Verify that the "Transfer file metadata and checksum on created files" option is enabled.
• Metadata type: Confirm that you are attempting to transfer User-defined metadata, as System-defined metadata is not supported.