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https://issues.apache.org/jira/browse/HDDS-16463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng updated HDDS-16463:
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Attachment: HDDS-16463.001.patch
> Recon power loss losing an un synced derived write permanently drops an
> applied update
> --------------------------------------------------------------------------------------
>
> Key: HDDS-16463
> URL: https://issues.apache.org/jira/browse/HDDS-16463
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Siyao Meng
> Priority: Critical
> Attachments: HDDS-16463.001.patch
>
>
> h3. Finding
> A power-loss crash that loses the un-synced derived-store write while the
> Derby cursor survives makes startup reconciliation skip reprocess,
> permanently dropping an applied update so every Recon derived-table query
> (container-key API/UI) serves stale/incomplete data with no automatic
> recovery. Production-reachable via the normal delta-sync path plus a
> differential power-loss within Ozone's fault model. ENV_LIMITED: the
> environment limit is the absence of a crash-consistency harness to truncate
> one RocksDB WAL tail relative to another.
> h3. Classification
> * Verdict: ENV_LIMITED
> * Severity: Critical
> * Source: Specula TLA+ model checking and confirmation debate, finding MC-1
> h3. Reproduce
> {noformat}
> Ozone commit: 9fbf9ee0cb1bd2f5f5d437b6719ebbe5309351fb
> Specula: v1.1.0 (commit c6aa3dfa)
> Target: recon-om-sync
> Guidance:
> campaigns/ozone-9fbf9ee/targets/023-recon-om-sync/.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 \
> "recon-om-sync|apache/ozone|Java|Use the target-specific .prompt-extra.md"
> {code}
> Discovered under HDDS-16434 (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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