=== [대조군] 차단 전 — keycloak-0 로그인 → keycloak-1 에서 refresh ===
  sid                    tAWs2gCPr6SOcD4jDR9-_CzB
  keycloak-1 에서 refresh: 200

=== [기준선 4] JGroups 지표 — 양쪽 노드 ===
--- K0 (10.42.1.43) ---
vendor_jgroups_stats_bytes_sent_total 31476.0
vendor_jgroups_merge3_get_num_merge_events 0.0
vendor_jgroups_merge3_get_views 0.0
vendor_jgroups_fd_sock2_get_num_suspected_members 0.0
vendor_jgroups_nakack2_get_xmit_table_missing_messages 0.0
--- K1 (10.42.0.35) ---
vendor_jgroups_merge3_get_views 0.0
vendor_jgroups_stats_bytes_sent_total 126765.0
vendor_jgroups_nakack2_get_xmit_table_missing_messages 0.0
vendor_jgroups_fd_sock2_get_num_suspected_members 0.0
vendor_jgroups_merge3_get_num_merge_events 0.0