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DAOS-18690 vos: handle DTX commit under space pressure - b28#18280

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DAOS-18690 vos: handle DTX commit under space pressure - b28#18280
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@Nasf-Fan Nasf-Fan commented May 19, 2026

If we cannot normally allocate space to hold committed DTX table, then release some old DTX entries from some container in the same pool to hold new committed ones.

The patch also uses preallocated space for TX snapshots under the case of space pressure.

Steps for the author:

  • Commit message follows the guidelines.
  • Appropriate Features or Test-tag pragmas were used.
  • Appropriate Functional Test Stages were run.
  • At least two positive code reviews including at least one code owner from each category referenced in the PR.
  • Testing is complete. If necessary, forced-landing label added and a reason added in a comment.

After all prior steps are complete:

  • Gatekeeper requested (daos-gatekeeper added as a reviewer).

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github-actions Bot commented May 19, 2026 •
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Ticket title is 'Aurora daos_user: SCM single target ran out of space (min:0 B) and not able to finish GC. '
Status is 'Awaiting backport'
https://daosio.atlassian.net/browse/DAOS-18690

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daosbuild3 commented May 20, 2026

Test stage Functional Hardware Medium Verbs Provider MD on SSD completed with status UNSTABLE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net/job/daos-stack/job/daos//view/change-requests/job/PR-18280/1/testReport/

@Nasf-Fan Nasf-Fan force-pushed the Nasf-Fan/DAOS-18690_b28 branch from a9b514b to e153041 Compare May 20, 2026 08:38
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daosbuild3 commented May 21, 2026

Test stage Functional Hardware Medium MD on SSD completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-18280/2/execution/node/1370/log

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daosbuild3 commented May 21, 2026

Test stage Functional Hardware Medium Verbs Provider MD on SSD completed with status UNSTABLE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net/job/daos-stack/job/daos//view/change-requests/job/PR-18280/2/testReport/

@Nasf-Fan
DAOS-18690 vos: handle DTX commit under space pressure - b28
3dca5b8 
If we cannot normally allocate space to hold committed DTX table,
then release some old DTX entries from some container in the same
pool to hold new committed ones.

The patch also uses preallocated space for TX snapshots under the
case of space pressure.

Signed-off-by: Fan Yong <[email protected]>
@Nasf-Fan Nasf-Fan force-pushed the Nasf-Fan/DAOS-18690_b28 branch from e153041 to 3dca5b8 Compare May 22, 2026 02:38
@Nasf-Fan Nasf-Fan marked this pull request as ready for review May 25, 2026 02:35
@Nasf-Fan Nasf-Fan requested review from a team as code owners May 25, 2026 02:35
@janekmi
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janekmi commented May 26, 2026

Is this a (clean) cherry pick of b36dd7b ?

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@Nasf-Fan @daosbuild3 @janekmi