[Bug 1868364] Re: [SRU] rgw: unable to abort multipart upload after the bucket got resharded

Robie Basak 1868364 at bugs.launchpad.net
Wed Aug 19 14:10:34 UTC 2020


Hello dongdong, or anyone else affected,

Accepted ceph into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/ceph/12.2.13-0ubuntu0.18.04.3 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-
bionic to verification-done-bionic. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-bionic. 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.

** Changed in: ceph (Ubuntu Bionic)
       Status: Triaged => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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https://bugs.launchpad.net/bugs/1868364

Title:
  [SRU] rgw: unable to abort multipart upload after the bucket got
  resharded

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive queens series:
  Triaged
Status in Ubuntu Cloud Archive rocky series:
  Won't Fix
Status in Ubuntu Cloud Archive stein series:
  Fix Released
Status in Ubuntu Cloud Archive train series:
  Fix Released
Status in ceph package in Ubuntu:
  Fix Released
Status in ceph source package in Bionic:
  Fix Committed

Bug description:
  [Impact]
  This bug will cause the bucket not able to abort the multipart upload and leaving the stale multiple entries behind for those buckets which had partial multipart uploads before the resharding.

  [Test Case]
  Deploy a latest luminous(12.2.13) ceph cluter
  Create a bucket
  upload a big file (200M+) to that bucket
  Press "Ctrl + C" after several part (each part is 15M) had been uploaded
  Manually reshard the bucket to 4 shards
  Abort the multipart uploading
  Without the fix, you will not able to abort the previous uploading

  [Regression Potential]
  Low - this fix has been accept upstream in later releases since from Mimic, but it there is a super large multipart uploads, all the multi-entry will now be correctly mapped to the expected shard, which will cause this shard contain more omap entries than before, which might some slow when listing the shard

  [Original Bug Report]
  There is a bug during the resharding for those multipart entries.
  For all the multipart entries, the hash source should be the object name so that all those entries can still be
  distributed to one same bucket index shard object.
  Right now the code just calculate the shard id based on each entry's name, which is wrong
  This can cause the bucket not able to abort the multipart upload and leave the stale multiple entries behind.
  https://tracker.ceph.com/issues/43583

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