Neil Joshi created HDDS-7922:
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Summary: [FSO] S3G folder support fso layout filestatus s3A
compatibility
Key: HDDS-7922
URL: https://issues.apache.org/jira/browse/HDDS-7922
Project: Apache Ozone
Issue Type: Bug
Reporter: Neil Joshi
Attachments: FSO S3G folder support - s3A compatibility for filestatus
HEAD requests and GET .png
Currently there exists an incompatibility with file stats issued with s3a
adapter through s3-gateway on directories created with fso layout.
S3a expects file status (exist) queries on directories issued through s3
gateway to have path names ending with a '/' slash. The s3gateway returns
directory exists on directory paths with and without a trailing slash due to
internal path normalization (eg. path/dir1 == path/dir1/).
File exists, file status is queried by s3A over s3gateway with Head requests
(head-object s3 requests). Proposed is an implementation to resolve the issue
and to cover corner cases to support fso folders over s3g by modifying the s3g
ObjectEndpoint to check whether the requested path is a directory, if so, to
only return ok if path has trailing '/'. This would support s3 Head requests
and Get requests. The type of object, where file or directory is determined in
the head-object and get-object request through checking the keyInfo (modifying
the OzoneKey and OzoneKeyDetails) isFile().
A sample sequence diagram for this is attached.
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