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https://issues.apache.org/jira/browse/HDDS-16448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng updated HDDS-16448:
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Attachment: HDDS-16448.001.patch
> A CLOSED container's sequenceId is silently bumped by a higher BCSID report,
> stranding quorum correct replicas
> --------------------------------------------------------------------------------------------------------------
>
> Key: HDDS-16448
> URL: https://issues.apache.org/jira/browse/HDDS-16448
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Siyao Meng
> Priority: Major
> Attachments: HDDS-16448.001.patch
>
>
> h3. Finding
> Internal invariant violation (a CLOSED container's immutable sequenceId is
> silently bumped by a healthy higher-BCSID replica report) that demonstrably
> propagates to external effect: RatisContainerReplicaCount reclassifies
> quorum-correct QUASI_CLOSED replicas as unhealthy (healthy count 3 to 1), so
> a fully-replicated CLOSED container is treated as under-replicated and
> MismatchedReplicasHandler strands those replicas. Triggerable Level 0 through
> the real ContainerReportHandler.onMessage path with an ordinary DN report;
> the bump is monotonic with no downstream self-heal.
> h3. Classification
> * Verdict: REPRODUCED
> * Severity: High
> * Source: Specula TLA+ model checking and confirmation debate, finding MC-3
> h3. Reproduce
> {noformat}
> Ozone commit: 9fbf9ee0cb1bd2f5f5d437b6719ebbe5309351fb
> Specula: v1.1.0 (commit c6aa3dfa)
> Target: scm-container-lifecycle
> Guidance:
> campaigns/ozone-9fbf9ee/targets/015-scm-container-lifecycle/.prompt-extra.md
> {noformat}
> {code:none}
> specula run --agent=claude-code --effort=medium --keep-original
> --max-parallel=2 \
> --enable-reviews --confirm-debate --tlc-memory-limit=28G
> --tlc-worker-limit=8 \
> "scm-container-lifecycle|apache/ozone|Java|Use the target-specific
> .prompt-extra.md"
> {code}
> Discovered under HDDS-16431 (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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