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document-haness/docs/keycloak-session-store/final/evidence/raw/a2-database-loss__05-recovery.txt
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

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=== ★ up 지표는 무엇을 말하는가 (프로세스는 살아 있다) ===
up{pod=keycloak-1} = 1 ← 1 인데 서비스는 503 이다
up{pod=keycloak-0} = 1 ← 1 인데 서비스는 503 이다
=== 복구 — PostgreSQL 재기동 ===
재기동 시각: 11:57:09
deployment.apps/postgres scaled
Waiting for deployment "postgres" rollout to finish: 0 out of 1 new replicas have been updated...
Waiting for deployment "postgres" rollout to finish: 0 of 1 updated replicas are available...
deployment "postgres" successfully rolled out
=== Keycloak 이 스스로 회복하는가 (재시작 없이) ===
+15초 keycloak-0 true keycloak-1 true | 외부 HTTP 200
→ 서비스 복귀
=== 재시작 횟수 — 파드가 죽었다 살아난 것인가, 그대로 회복한 것인가 ===
keycloak-0 0
keycloak-1 0
=== 정지 전 세션이 살아남았는가 ===
online 세션 5