Assistance Needed: Syncing Large DICOM Instances Between Orthanc Instances

Dear Orthanc Support Team,

I hope this message finds you well. I am reaching out to seek assistance regarding an issue I’m encountering while attempting to sync DICOM instances between two Orthanc instances.

I currently have an Orthanc setup on a Windows Server, where I have several DICOM instances exceeding 1 GB in size. My goal is to sync this data with another Orthanc instance running on a Docker Ubuntu setup, which is configured to upload DICOMs to an AWS S3 bucket.

To achieve this synchronization, I’ve implemented a cron job that downloads DICOM instances from the Windows Server Orthanc and uploads them to the Docker Ubuntu Orthanc. However, I’m encountering challenges when attempting to download instances larger than 1 GB. The process often results in 504 Gateway errors or timeouts.

Could you kindly provide guidance or suggestions on how to address this issue? I’m open to any recommendations or best practices for efficiently syncing large DICOM instances between Orthanc instances, particularly when dealing with instances exceeding 1 GB in size.

Thank you in advance for your assistance and expertise. I look forward to your response.