Attila Doroszlai created HDDS-11109:
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Summary: Fail MPU earlier for too small part
Key: HDDS-11109
URL: https://issues.apache.org/jira/browse/HDDS-11109
Project: Apache Ozone
Issue Type: Improvement
Components: s3gateway
Reporter: Attila Doroszlai
Assignee: Attila Doroszlai
Ozone requires S3 multipart upload parts to be at least 5MB, with the exception
of the last part. This requirement is enforced only while processing
CompleteMultipartUpload request, because UploadPart request has no information
about being the last part.
This may be improved: when receiving any but the very first part, one of the
parts can verified (either the previous one, or the current one, depending on
upload order and considering part replacement).
With normal upload order: receiving part N, we can verify part N-1 is
acceptable.
Potential downsides:
# Use case that would no longer work: client uploads multiple undersized parts,
but CompleteMultipartUpload lists only one of them, and at the last position;
the rest are orphaned.
# May not be fully compatible with AWS.
https://github.com/apache/ozone/discussions/6869
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