docs: prove sessions are shared by PostgreSQL, not Infinispan replication

Experiment 0 with three probes: cross-node refresh/logout, cache counter deltas around a single login, and cache entry ownership. Each node caches only what it handled; cache totals sum exactly to the database count. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 09:58:10 +09:00
parent 006da7d490
commit e5ebaeb623
20 changed files with 1114 additions and 0 deletions
@@ -0,0 +1,15 @@
+===================================================================
+ 실험 0c — 세션 엔트리는 어느 노드에 있는가 (로컬 캐시인가 분산인가)
+===================================================================
+
+수집 시각: 2026-09-04 09:54:54 KST
+  keycloak-0 = 10.42.1.43  (kc-lab-2)
+  keycloak-1 = 10.42.0.35  (kc-lab-1)
+
+단계                             k0 entries   k1 entries
+시작                                    2.0          0.0
+keycloak-1 에 로그인 5회             2.0          5.0
+keycloak-0 에 로그인 5회             7.0          5.0
+
+=== 대조: PostgreSQL 에는 몇 건인가 ===
+  online 세션 12