Siyao Meng created HDDS-16450:
---------------------------------
Summary: Retained DELETE ops inflate ReplicaDeleteTimeout JMX
metrics N-fold per logical delete
Key: HDDS-16450
URL: https://issues.apache.org/jira/browse/HDDS-16450
Project: Apache Ozone
Issue Type: Bug
Reporter: Siyao Meng
h3. Finding
Retained DELETE ops re-increment ReplicaDeleteTimeoutTotal /
EcReplicaDeleteTimeoutTotal on every scrubber cycle, so one logical delete
inflates the operator-facing JMX timeout metric N-fold; no safety impact
(subscribers are idempotent), only a permanently distorted monitoring signal,
so Low.
h3. Classification
* Verdict: REPRODUCED
* Severity: Low
* Source: Specula TLA+ model checking and confirmation debate, finding CR-3
h3. Reproduce
{noformat}
Ozone commit: 9fbf9ee0cb1bd2f5f5d437b6719ebbe5309351fb
Specula: v1.1.0 (commit c6aa3dfa)
Target: scm-pending-replica-ops
Guidance:
campaigns/ozone-9fbf9ee/targets/014-scm-pending-replica-ops/.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-pending-replica-ops|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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