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https://issues.apache.org/jira/browse/HDDS-17657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chun-Hung Tseng reassigned HDDS-17657:
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Assignee: Chun-Hung Tseng
> CompleteMultipartUpload accepts a repeated part number when the earlier entry
> has no ETag
> -----------------------------------------------------------------------------------------
>
> Key: HDDS-17657
> URL: https://issues.apache.org/jira/browse/HDDS-17657
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: S3
> Reporter: Chung-En Lee
> Assignee: Chun-Hung Tseng
> Priority: Trivial
>
> Steps to reproduce:
> # Create a multipart upload and upload parts 1 and 2 (5 MiB each).
> # Send CompleteMultipartUpload with one of these part lists:
> ** Case 1: {{[{PartNumber: 1}, {PartNumber: 1, ETag: <part 1 ETag>}]}}
> ** Case 2: {{[{PartNumber: 1}, {PartNumber: 2, ETag: <part 2 ETag>},
> {PartNumber: 1, ETag: <part 1 ETag>}]}}
> # Send HeadObject.
> Actual:
> * Case 1: CompleteMultipartUpload returns 200, and the object is 5 MiB. Part
> 2 is dropped.
> * Case 2: CompleteMultipartUpload returns 200, and the object is 10 MiB.
> Expected:
> Both requests return 400 MalformedXML, as on AWS S3. No object is created,
> and the upload stays open.
> Cause:
> HDDS-17554 detects a repeat from the return value of partsMap.put in
> ObjectEndpoint#completeMultipartUpload. A missing ETag stores null, so the
> next entry with that part number isn't detected.
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