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Add legacy MD5 checksum validation#6790

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simonelbaz wants to merge 3 commits intoopensearch-project:mainfrom
simonelbaz:md5checksum-2
Open

Add legacy MD5 checksum validation#6790
simonelbaz wants to merge 3 commits intoopensearch-project:mainfrom
simonelbaz:md5checksum-2

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@simonelbaz
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@simonelbaz simonelbaz commented Apr 29, 2026

Description

Some S3 compatible storages still use legacy MD5 checksum validation.
With this patch, it will be possible to activate MD5 algorithm (optional).

Issues Resolved

Resolves #6780 , #6340

Check List

  • New functionality includes testing.
  • New functionality has a documentation issue. Please link to it in this PR.
    • New functionality has javadoc added
  • Commits are signed with a real name per the DCO

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

@simonelbaz
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The PR needs some permission to pass the failed check.

Thanks for any review & help.

@dlvenable
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@simonelbaz , Will this supersede #6356 ?

@simonelbaz
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@simonelbaz , Will this supersede #6356 ?

Yes, it will.

@dlvenable
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@simonelbaz , Your second commit appears to have the wrong DCO. Please correct.

@simonelbaz simonelbaz force-pushed the md5checksum-2 branch 2 times, most recently from d9de5b9 to 19c29eb Compare April 30, 2026 22:00
dlvenable
dlvenable previously approved these changes May 1, 2026
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@dlvenable dlvenable left a comment

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Thanks for the contribution @simonelbaz !

@simonelbaz
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@dlvenable : thanks for your feedback. Is it slated to be merged to main branch pls?

@dlvenable
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@simonelbaz , There are merge conflicts to merge to main. Can you rebase this and resolve the conflicts? Then we should be good to merge.

simonelbaz added 3 commits May 7, 2026 13:51
Signed-off-by: Simon ELBAZ <elbazsimon9@gmail.com>
Signed-off-by: Simon ELBAZ <elbazsimon9@gmail.com>
Signed-off-by: Simon ELBAZ <elbazsimon9@gmail.com>
@simonelbaz
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@simonelbaz , There are merge conflicts to merge to main. Can you rebase this and resolve the conflicts? Then we should be good to merge.

@dlvenable : rebase done

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Add legacy MD5 checksum validation

2 participants