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>
54 lines
2.2 KiB
Markdown
54 lines
2.2 KiB
Markdown
---
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kind: CONCEPT
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slug: grpc-admin-c01
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title: 건강 레지스트리 — 낙관에서 시작하지 않는다
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topic: delivery-and-settlement-models
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project: clean-architecture-backend-template
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status: 게시 전
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sourceRevision: 21234e38cdb9a926cbc92bb97a2aee2e4a7d2916
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rootTreeNode: concept:grpc-admin-c01
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evidenceCapturedOn: 2026-09-01
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assets:
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- key: grpc-admin-c01
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file: ../../../final/evidence/rendered/grpc-admin-c01.svg
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- key: grpc-admin-c01-diagram
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file: ../../../final/assets/diagrams/grpc-admin-c01.svg
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evidence:
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- ../../../final/evidence/raw/grpc-admin-c01.txt
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source:
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- 원본 분석 절은 analysis/grpc/grpc-admin.md#L50 이다.
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module: grpc-admin
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---
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# 건강 레지스트리 — 낙관에서 시작하지 않는다
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모든 등록 서비스가 UNKNOWN 에서 시작한다. 그리고 배수 중에는 markServing·markNotServing 이 무시된다.
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## 본문
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<!-- body:start -->
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모든 등록 서비스가 `UNKNOWN` 에서 시작한다.
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> "A registry that starts optimistic reports ready during startup, receives traffic before the first dependency check has run, and fails the requests that arrive in that window — the window being exactly the moment a rollout is shifting traffic onto the instance."
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## 배수 중에는 표시가 무시된다
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`markServing`·`markNotServing` 이 무시된다.
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> "a service that reports itself healthy after the drain has started would be routed traffic the instance has already promised not to take."
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## 전역 상태 판정 우선순위
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:::evidence key="grpc-admin-c01-diagram" alt="임계 의존 불건강과 하나라도 NOT_SERVING 과 하나라도 SERVING 과 그 밖이 위에서 아래로 쌓여 있고 오른쪽에 판정 순서 화살표가 있다" caption="전역 상태 판정 우선순위" zoom="false"
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:::
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임계 의존이 하나라도 불건강하면 `NOT_SERVING`, 아니면 하나라도 `NOT_SERVING` 이면 `NOT_SERVING`, 하나라도 `SERVING` 이면 `SERVING`, 그 밖에는 `UNKNOWN` 이다.
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## 이 기록이 다루는 범위
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:::evidence key="grpc-admin-c01" alt="코드베이스에서 파일 목록을 만든 출력 13줄. 이 기록이 다루는 범위가 그 목록이다." caption="코드베이스 파일 목록 — 13줄 · exit 0" zoom="true"
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:::
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<!-- body:end -->
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