HTTP 500 during Dataverse multipart upload finalization (~25 GB file)

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Manaswini Ganjam

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Sep 2, 2026, 7:35:47 PM (17 hours ago) Sep 2
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Hi everyone,

I am uploading a large dataset to Harvard Dataverse using DVUploader v1.4.0 in direct-upload mode from a university HPC data transfer node.

I am encountering an HTTP 500 error during the finalization of a multipart upload, and I am hoping someone familiar with the Dataverse/S3 upload pipeline can help determine whether this is a known issue.

  • Total dataset size: ~957 GB
  • DVUploader: v1.4.0
  • Upload mode: Direct upload
  • Failed file: zip file (~25 GB)
  • Multipart parts: 25

The upload proceeds normally through the S3 multipart stage:

  • All 25 parts uploaded successfully to the Dataverse S3 bucket.

  • Each part reached 100% and returned a valid ETag.

  • The subsequent Dataverse request to complete/finalize the multipart upload returned HTTP 500.

  • The file was consequently not registered in the dataset.

The DVUploader log reports:

“Partial upload of [...]/beam_rad_annual_conus_tiles.zip, complete upload failed with status: 500”

followed by:

“Not uploaded due to error during processing.”

Unfortunately, DVUploader does not appear to log the response body from the HTTP 500, so I do not have the server-side exception.

I previously encountered a different error (SignatureDoesNotMatch) during another large-file upload, but the current failure is specifically an HTTP 500 after all multipart parts have successfully uploaded.

I am particularly interested in whether anyone has encountered this sequence:

S3 multipart parts successfully uploaded → Dataverse multipart completion/finalization → HTTP 500 → file not registered

and whether there are known limitations related to file size (~25 GB), number of multipart parts (25), or the Dataverse finalization/registration step.

I have approximately 39 archives, averaging ~24 GB each to upload. If anyone has suggestions for additional logging, relevant Dataverse configuration, known issues, or a GitHub issue that matches this behavior, I would greatly appreciate the guidance.

Thank you,
Manaswini

Jacek Chudzik

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6:12 AM (7 hours ago) 6:12 AM
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Hi,

from our experience this might be the problem with timeouts during checksum validation.

I would set low number on dataset/datafile checksum validation limit:

And just to be extra safe I would alse go with this option:

Hope this will help.

Regards
Jacek

Björn Selent

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10:51 AM (2 hours ago) 10:51 AM
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Hi all,
we also encounter issues with uploads of larger files (>50Gb). By trial and error we managed to upload (direct upload into on-premise NetApp S3 via DVUploader) a file of 4.5 TB by setting the min-part-size to 512GB. We also experience issues with file sizes that haven't been a problem in the years (ca. 30-50GB) with regular "non-direct" upload. As we haven't properly investigated it yet, I cannot tell at which part of the stack the problem occurs. I just mention it in case anybody else has similar issues.

Regards
Björn

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