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Rebuild test branch for Ravin#17622

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gnailzenh wants to merge 7 commits intomasterfrom
liang/rebulid/b_rebuild_ravin
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Rebuild test branch for Ravin#17622
gnailzenh wants to merge 7 commits intomasterfrom
liang/rebulid/b_rebuild_ravin

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@gnailzenh gnailzenh commented Feb 28, 2026

This branch includes a few changes:

  • fix a bug in down2up handling of placement
  • limit GX to 70% of pool size
  • change discard of reintegration from synchronous mode to async mode
  • add more debug message

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).

The current DAOS only reserves RF × group_size targets for a GX object,
whereas it should reserve targets_per_domain × RF.

In addition, when the number of reserved targets is a fixed value, the
likelihood of losing those targets grows significantly as the cluster
scales, which can cause collocated shards and extra data movement
during rebuild.

This patch changes the number of reserved targets for a GX object to
be no less than 30% of the targets.

Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
- pool_discard doesn't wait for completion of discard anymore
- Make sure no concurrent discards

Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
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github-actions bot commented Feb 28, 2026

Errors are component not formatted correctly,Ticket number prefix incorrect,PR title is malformatted. See https://daosio.atlassian.net/wiki/spaces/DC/pages/11133911069/Commit+Comments,Unable to load ticket data
https://daosio.atlassian.net/browse/Rebuild

@gnailzenh gnailzenh changed the title Liang/rebulid/b rebuild ravin Rebuild test branch for Ravin Feb 28, 2026
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Test stage Build on Leap 15.5 with Intel-C and TARGET_PREFIX completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-17622/1/execution/node/309/log

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Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
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Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
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