DongHyeonkaandClaude Opus 5
b2963105a8
The keycloak project ended with four open questions that design could not
settle. A two-VM lab was built to answer them by measurement, and this is
that material: 26 experiments, 125 raw command outputs, 22 browser captures.
Follows the import procedure in README.md.
source/ the originating repository verbatim — 78 documents, 28 SVGs,
8 manifests, plus .source-revision recording the commit
final/ the SSOT
document.md 729 lines written from the 29 experiment documents, not
concatenated: what was predicted, what was measured, and
where the measurement itself was wrong
evidence/raw 125 outputs, flattened to <experiment>__<file> because
the originals collided (01-baseline.txt appeared three
times) and the audit only globs the top level
evidence/meta one per raw file; command and exitCode are null and the
README says why rather than inventing them
evidence/browser 22 captures
assets/ three diagrams through techviz
.techviz/ their VizSpecs
A separate project rather than an addition to keycloak: the B-layer answers
that project's four questions, but the A, C and D layers are about cluster
failure, SSO and operations, and one document.md should hold one subject.
The four question records there can point here through 관계.
Recorded rather than papered over: only three of the 28 diagrams were
remade. The repository forbids hand-drawn SVG and forbids titles inside the
canvas; all 28 originals carry both, so converting them is redrawing, not
reformatting. They stay in source/ and the gap is written into the document.
verify-pipeline.py passes. audit-records.py reports no issues.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2.2 KiB
kind, slug, title, topic, project, status, sourceRevision, rootTreeNode, evidenceCapturedOn, assets, evidence, source, module
| kind | slug | title | topic | project | status | sourceRevision | rootTreeNode | evidenceCapturedOn | assets | evidence | source | module | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CONCEPT | adapter-outbound-persistence-jpa-c16 | 완료 불명과 되돌릴 수 없는 부작용에서는 재시도하지 않는다 | transaction-and-consistency-models | clean-architecture-backend-template | 게시 전 | 21234e38cdb9a926cbc92bb97a2aee2e4a7d2916 | concept:adapter-outbound-persistence-jpa-c16 | 2026-09-01 |
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adapter-outbound-persistence-jpa |
완료 불명과 되돌릴 수 없는 부작용에서는 재시도하지 않는다
coordinator는 JpaPersistenceException만 catch하고 retry decision에 따라 새 transaction과 새 persistence context에서 전체 work를 다시 호출한다. 다섯 가지 guard가 그 재호출을 막는다.
본문
coordinator는 JpaPersistenceException만 catch하고, retry decision에 따라 새 transaction / 새 persistence context에서 전체 work를 다시 호출한다. 설계상 중요한 guard가 다섯이다.
- completion unknown → no retry
- irreversible side effect context → no retry
- retry budget elapsed → stop
- max attempts → stop
- backoff interrupt → stop
retry listener는 observation only다.
FullTransactionRetryCoordinator 참조 위치
:::evidence key="adapter-outbound-persistence-jpa-c16" alt="코드베이스에서 FullTransactionRetryCoordinator 를 검색한 출력 15줄. 이 기록이 세는 참조가 그 출력에 그대로 보인다." caption="FullTransactionRetryCoordinator 코드베이스 검색 — 15줄 · exit 0" zoom="true" :::
모델 자체의 테스트는 강하고 조립에는 결함이 있다
이 모델 자체의 unit tests는 강하다 — serialization/deadlock retry, exhaustion, completion unknown no-retry, interrupted sleep, irreversible side effect 등을 검증한다. 하지만 current implementation에는 public composition contract와 맞지 않는 별도 defect가 있다.