[
https://issues.apache.org/jira/browse/HDDS-16446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Siyao Meng updated HDDS-16446:
------------------------------
Attachment: HDDS-16446.001.patch
> SCM counts an UNHEALTHY replica as valid for quasi closed stuck containers,
> risking loss of the healthy copy
> ------------------------------------------------------------------------------------------------------------
>
> Key: HDDS-16446
> URL: https://issues.apache.org/jira/browse/HDDS-16446
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Siyao Meng
> Priority: Major
> Attachments: HDDS-16446.001.patch
>
>
> h3. Finding
> For quasi-closed-stuck containers an UNHEALTHY IN_SERVICE replica is counted
> as a valid copy, so an origin with only 1 healthy copy is declared adequately
> replicated (no repair) and over-delete can drop a healthy copy while keeping
> the UNHEALTHY one; a persistent durability reduction with no downstream
> handler to recover it, reachable from ordinary replica reports.
> h3. Classification
> * Verdict: REPRODUCED
> * Severity: High
> * Source: Specula TLA+ model checking and confirmation debate, finding CR-2
> h3. Reproduce
> {noformat}
> Ozone commit: 9fbf9ee0cb1bd2f5f5d437b6719ebbe5309351fb
> Specula: v1.1.0 (commit c6aa3dfa)
> Target: scm-ratis-replication
> Guidance:
> campaigns/ozone-9fbf9ee/targets/012-scm-ratis-replication/.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-ratis-replication|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).
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
