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https://issues.apache.org/jira/browse/HDDS-17644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gargi Jaiswal resolved HDDS-17644.
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Fix Version/s: 2.3.0
Resolution: Fixed
> S3 CreateMultipartUpload is accepted under a parent that is a file, then
> every UploadPart fails with 500 InternalError
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: HDDS-17644
> URL: https://issues.apache.org/jira/browse/HDDS-17644
> Project: Apache Ozone
> Issue Type: Bug
> Components: S3
> Reporter: Bablu Raul
> Assignee: Andy Huang
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.3.0
>
>
> In an FSO bucket, if a parent path already exists as a regular file, a
> {{PutObject}} request to create an object under that file is correctly
> rejected with HTTP 400 {{{}InvalidRequest{}}}.
> However, {{CreateMultipartUpload}} for the same key succeeds and returns an
> {{{}UploadId{}}}. When attempting to upload a part, the request fails with
> HTTP 500 {{{}InternalError{}}}.
> The S3 Gateway logs show that Ozone Manager rejects the operation with
> {{NOT_A_FILE}} because the parent path is already an existing file. However,
> the S3 Gateway returns a generic 500 error instead of an appropriate 4xx
> error.
> As a result, the multipart upload is created but no parts can be uploaded,
> leaving it unusable until explicitly aborted.
> *Steps to Reproduce*
> # Create a bucket with {{FILE_SYSTEM_OPTIMIZED}} layout.
> # Create a regular file in the bucket (for example, {{{}file-062844{}}}).
> # Try a {{PutObject}} request using {{file-062844/child}} as the key. It
> should fail with HTTP 400 {{{}InvalidRequest{}}}.
> # Initiate a multipart upload for the same key using
> {{{}CreateMultipartUpload{}}}.
> # Verify that the request succeeds and returns an {{{}UploadId{}}}.
> # Attempt to upload a part using the returned {{{}UploadId{}}}.
> *Actual Result*
> * {{CreateMultipartUpload}} succeeds even though the parent path is an
> existing file.
> * Every {{UploadPart}} request fails with HTTP 500 {{{}InternalError{}}}.
> * Ozone Manager reports a {{NOT_A_FILE}} exception, but the S3 Gateway
> returns a generic 500 error.
> * No parts are stored, and the multipart upload can only be aborted.
> *Expected Result*
> * {{CreateMultipartUpload}} should be rejected immediately with HTTP 400
> {{{}InvalidRequest{}}}, consistent with {{{}PutObject{}}}.
> * If {{UploadPart}} encounters a {{NOT_A_FILE}} exception, the S3 Gateway
> should return an appropriate 4xx error instead of HTTP 500
> {{{}InternalError{}}}.
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