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document-haness/docs/clean-architecture-backend-template/tech-log-studio/delivery-and-settlement-models/concept/concept-messaging-rabbit-c01.md
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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

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Markdown

---
kind: CONCEPT
slug: messaging-rabbit-c01
title: 소비·정착·죽은 편지의 세 규율
topic: delivery-and-settlement-models
project: clean-architecture-backend-template
status: 게시 전
sourceRevision: 21234e38cdb9a926cbc92bb97a2aee2e4a7d2916
rootTreeNode: concept:messaging-rabbit-c01
evidenceCapturedOn: 2026-09-01
assets:
- key: messaging-rabbit-c01
file: ../../../final/evidence/rendered/messaging-rabbit-c01.svg
- key: messaging-rabbit-c01-diagram
file: ../../../final/assets/diagrams/messaging-rabbit-c01.svg
evidence:
- ../../../final/evidence/raw/messaging-rabbit-c01.txt
source:
- 원본 분석 절은 analysis/messaging/messaging-rabbit.md#L91 이다.
module: messaging-rabbit
---
# 소비·정착·죽은 편지의 세 규율
좁은 catch. RabbitConsumerRegistrar.onMessage 가 디코딩만 감싸는 안쪽 try 를 따로 둔다.
## 본문
<!-- body:start -->
**좁은 catch.** `RabbitConsumerRegistrar.onMessage` 가 디코딩만 감싸는 안쪽 `try` 를 따로 둔다.
## 핸들러가 끝난 뒤의 두 갈래
:::evidence key="messaging-rabbit-c01-diagram" alt="핸들러 완료에서 정착함 ack 와 정착 안 함 requeue 두 갈래가 나온다" caption="핸들러가 끝난 뒤의 두 갈래" zoom="false"
:::
**정착하지 않은 핸들러.** 완료했는데 정착하지 않으면 대신 ack 하지 않고 requeue 한다 — "acknowledging on its behalf would silently drop it".
## RabbitConsumerRegistrar 참조 위치
:::evidence key="messaging-rabbit-c01" alt="코드베이스에서 RabbitConsumerRegistrar 를 검색한 출력 13줄. 이 기록이 세는 참조가 그 출력에 그대로 보인다." caption="RabbitConsumerRegistrar 코드베이스 검색 — 13줄 · exit 0" zoom="true"
:::
## 네이티브 죽은 편지
`RabbitNativeDeadLetterCapability` 가 두 조건을 모두 요구한다.
<!-- body:end -->