Files
document-haness/docs/clean-architecture-backend-template/tech-log-studio/state-machines-and-ownership/concept/concept-messaging-observability-c01.md
T
DongHyeonkaandClaude Opus 5 b2963105a8 docs(keycloak-session-store): import the session-storage lab as a new project
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>
2026-09-04 22:51:59 +09:00

2.6 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 messaging-observability-c01 seam은 중립이고 구현만 벤더에 묶인다 state-machines-and-ownership clean-architecture-backend-template 게시 전 21234e38cdb9a926cbc92bb97a2aee2e4a7d2916 concept:messaging-observability-c01 2026-09-01
key file
messaging-observability-c01 ../../../final/evidence/rendered/messaging-observability-c01.svg
key file
messaging-observability-c01-diagram ../../../final/assets/diagrams/messaging-observability-c01.svg
../../../final/evidence/raw/messaging-observability-c01.txt
원본 분석 절은 analysis/messaging/messaging-observability.md#L52 이다.
messaging-observability

seam은 중립이고 구현만 벤더에 묶인다

메트릭·추적·감사 셋이 같은 제약 아래 있다 — 경계가 알려진 값만 나간다. MessagingObservation 인터페이스 자체는 Micrometer를 모른다.

관계

  • 타입이 문서화한 불변식은 타입이 강제한다 같은 분석 리프에서 끌어낸 규칙이다.

본문

이 leaf는 **"메시징이 무엇을 밖으로 내보내도 되는가"**를 소유한다. 메트릭·추적·감사 셋이 여기 있고, 셋 다 같은 제약 아래 있다 — 경계가 알려진 값만 나간다.

seam과 구현의 결합 범위

:::evidence key="messaging-observability-c01-diagram" alt="관측 seam 경계 안에 중립 인터페이스가 들어 있고 벤더에 결합된 구현이 경계 밖 점선 상자로 놓인 구조" caption="seam 과 구현의 결합 범위" zoom="false" :::

Micrometer를 api로 선언한 이유가 build.gradle에 있고 src/messaging/CLAUDE.md:40-43의 vendor api 게이트를 통과한다. 다만 MessagingObservation 인터페이스 자체는 Micrometer를 모른다 — 벤더는 MessagingMetrics 한 클래스에만 나타난다. 즉 seam은 중립이고 구현만 벤더에 묶인다.

MessagingObservation 참조 위치

:::evidence key="messaging-observability-c01" alt="코드베이스에서 MessagingObservation 를 검색한 출력 9줄. 이 기록이 세는 참조가 그 출력에 그대로 보인다." caption="MessagingObservation 코드베이스 검색 — 9줄 · exit 0" zoom="true" :::

의존이 하나뿐인 것도 의도적이다

messaging-core-api 하나다. MessagingTracerTraceContext·MessageHeaders를 쓰고 DefaultMessagingObservationConventionPublishCompletion·FailureCategory를 쓴다. policy나 transport는 필요 없다.