[Bug 2131790] Please test proposed package

[Andreas Hasenack]

Hello Ponnuvel, or anyone else affected,

Accepted ceph into jammy-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/ceph/17.2.9-0ubuntu0.22.04.3 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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https://bugs.launchpad.net/bugs/2131790

Title:
  RGW - etag not returned on multipart upload

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive yoga series:
  New
Status in ceph package in Ubuntu:
  Fix Released
Status in ceph source package in Jammy:
  Fix Committed
Status in ceph source package in Noble:
  Fix Released

Bug description:
  Thank you @pponnuvel for the original description!

  [ Impact ]
  Currently in ceph 17.2.9, when doing multipart uploads, the etag of the multipart upload is not returned. This causes issues with some applications that rely on ceph and the etag which now have to calculate the etag manually causing performance issues.
  The issue was fixed upstream through https://github.com/ceph/ceph/pull/56453.
  However this commit caused regressions and three other commits that are part of this PR are also needed to resolve them: https://github.com/ceph/ceph/pull/57257

  A total of 4 commits are needed to resolve the issue.

  [ Test Plan ]
  1- Deploy ceph 17.2.9
  2- Use the awscli tool to upload a file large enough that it would be sent as part of a multipart upload. Make sure to use the "--debug" argument to verify if the etag is being returned or not:
  aws s3 --profile ceph --endpoint-url <ceph URL> cp ./test.txt s3://test-bucket/ --debug

  Currently the following output is seen towards the end of the debug
  log:

  2026-04-14 22:47:57,150 - ThreadPoolExecutor-0_3 - botocore.parsers - DEBUG - Response body:
  b'<?xml version="1.0" encoding="UTF-8"?><CompleteMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Location>http://10.159.7.70/test-bucket/test.txt</Location><Bucket>test-bucket</Bucket><Key>test.txt</Key><ETag></ETag></CompleteMultipartUploadResult>'

  Where the <ETag></ETag> clause is empty.

  The output should look like the following:

  2026-04-14 22:47:57,150 - ThreadPoolExecutor-0_3 - botocore.parsers - DEBUG - Response body:
  b'<?xml version="1.0" encoding="UTF-8"?><CompleteMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Location>http://10.159.7.70/test-bucket/test.txt</Location><Bucket>test-bucket</Bucket><Key>test.txt</Key><ETag>9609801fffde7f91a34c9686065d9785-2</ETag></CompleteMultipartUploadResult>'

  With the <ETag> clause being populated.

  [ Where problems could occur ]

  * Since the fix touches on the upload logic of ceph, there is a chance that issues related to uploading data to ceph fails.
  * ETag might still fail to be included similarly to previous patches that tried resolving this issue but failed

  [Original Description]
  With 17.2.9, when doing multipart uploads, etags don't get returned. And the etag body is empty.

  This was supposed to be fixed in the bug:
  https://github.com/ceph/ceph/pull/51446

  However, we still see the issue with that fix too (which is part of
  17.2.9).

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