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https://issues.apache.org/jira/browse/HDDS-16436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng updated HDDS-16436:
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Attachment: HDDS-16436.001.patch
> LEGACY bucket lifecycle move to trash with a stale updateID can destructively
> trash a live key
> ----------------------------------------------------------------------------------------------
>
> Key: HDDS-16436
> URL: https://issues.apache.org/jira/browse/HDDS-16436
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Siyao Meng
> Priority: Critical
> Attachments: HDDS-16436.001.patch
>
>
> h3. Finding
> The LEGACY (non-FSO) rename handler lacks the per-key updateID guard that the
> delete and FSO-rename paths enforce, so a lifecycle move-to-trash carrying a
> scan-captured stale updateID destructively moves the client's live,
> overwritten (or delete+recreated) key into trash where reads return not-found
> and retention eventually purges it; the move is durably committed with no
> automatic recovery. Reachable in the default configuration (move-to-trash
> enabled by default) on a LEGACY bucket with a lifecycle rule and a post-scan
> overwrite. This is silent client-visible data loss.
> h3. Classification
> * Verdict: REPRODUCED
> * Severity: Critical
> * Source: Specula TLA+ model checking and confirmation debate, finding CR-4
> h3. Reproduce
> {noformat}
> Ozone commit: 9fbf9ee0cb1bd2f5f5d437b6719ebbe5309351fb
> Specula: v1.1.0 (commit c6aa3dfa)
> Target: om-key-lifecycle
> Guidance:
> campaigns/ozone-9fbf9ee/targets/006-om-key-lifecycle/.prompt-extra.md
> {noformat}
> {code:none}
> specula run --agent=claude-code --effort=high --keep-original
> --max-parallel=2 \
> --enable-reviews --confirm-debate --tlc-memory-limit=28G
> --tlc-worker-limit=8 \
> "om-key-lifecycle|apache/ozone|Java|Use the target-specific
> .prompt-extra.md"
> {code}
> Discovered under HDDS-16429 (Specula TLA+ verification effort). The TLA+
> specification, counterexample, and confirmation debate live in the Specula
> run artifacts.
> Generated with Specula (Claude Opus 4.8).
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