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>
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57 lines
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===================================================================
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실험 0d — 반대편 노드가 정말 DB 에서 읽는가 (SQL 을 직접 잡는다)
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===================================================================
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수집 시각: 2026-09-04 10:14:17 KST
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keycloak-0 = 10.42.1.43 (세션을 만드는 노드)
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keycloak-1 = 10.42.0.35 (읽기만 하는 노드)
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=== PostgreSQL 문장 로깅을 켠다 ===
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log_statement = all
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log_line_prefix = %m [%p] %h
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=== 요청 ===
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SID=jSt9GEPVQLJsO-1CeJjVgltg
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K1_ENTRIES_BEFORE=5.0
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REFRESH_ON_K1=200
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K1_ENTRIES_AFTER=5.0
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=== PostgreSQL 문장 로깅을 끈다 ===
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log_statement = none
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=== keycloak-1 이 실제로 보낸 SQL 문장 ===
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(파라미터가 $1 로 묶여 있어, sid 는 바로 아래 DETAIL 줄에 있다)
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select puse1_0.OFFLINE_FLAG,puse1_0.USER_SESSION_ID,puse1_0.BROKER_SESSION_ID,puse1_0.CREATED_ON,puse1_0.DATA,puse1_0.LAST_SESSION_REFRESH,puse1_0.REALM_ID,puse1_0.REMEMBER_ME,puse1_0.USER_ID,puse1_0.VERSION from OFFLINE_USER_SESSION puse1_0 where (puse1_0.OFFLINE_FLAG,puse1_0.USER_SESSION_ID) in (($1,$2))
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select puse1_0.VERSION from OFFLINE_USER_SESSION puse1_0 where puse1_0.USER_SESSION_ID=$1 and puse1_0.OFFLINE_FLAG=$2 for no key update of puse1_0 skip locked
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select pcse1_0.CLIENT_ID,pcse1_0.CLIENT_STORAGE_PROVIDER,pcse1_0.EXTERNAL_CLIENT_ID,pcse1_0.OFFLINE_FLAG,pcse1_0.USER_SESSION_ID,pcse1_0.DATA,pcse1_0.REALM_ID,pcse1_0.TIMESTAMP,pcse1_0.VERSION from OFFLINE_CLIENT_SESSION pcse1_0 where (pcse1_0.CLIENT_ID,pcse1_0.CLIENT_STORAGE_PROVIDER,pcse1_0.EXTERNAL_CLIENT_ID,pcse1_0.OFFLINE_FLAG,pcse1_0.USER_SESSION_ID) in (($1,$2,$3,$4,$5))
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select pcse1_0.VERSION from OFFLINE_CLIENT_SESSION pcse1_0 where pcse1_0.USER_SESSION_ID=$1 and pcse1_0.OFFLINE_FLAG=$2 and pcse1_0.CLIENT_ID=$3 and pcse1_0.EXTERNAL_CLIENT_ID=$4 and pcse1_0.CLIENT_STORAGE_PROVIDER=$5 for no key update of pcse1_0 skip locked
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update OFFLINE_CLIENT_SESSION set TIMESTAMP=$1,VERSION=$2 where CLIENT_ID=$3 and CLIENT_STORAGE_PROVIDER=$4 and EXTERNAL_CLIENT_ID=$5 and OFFLINE_FLAG=$6 and USER_SESSION_ID=$7 and VERSION=$8
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update OFFLINE_USER_SESSION set LAST_SESSION_REFRESH=$1,VERSION=$2 where OFFLINE_FLAG=$3 and USER_SESSION_ID=$4 and VERSION=$5
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SET LOCAL synchronous_commit TO OFF
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COMMIT
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DELETE from JGROUPS_PING WHERE address=$1
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INSERT INTO JGROUPS_PING (address, name, cluster_name, ip, coord, last_update, coordinated_by) values ($1, $2, $3, $4, $5, $6, $7)
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COMMIT
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DELETE from JGROUPS_PING WHERE address=$1
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=== 그 sid 를 언급한 SQL — 누가 보냈는가 ===
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찾는 sid: jSt9GEPVQLJsO-1CeJjVgltg
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2026-09-04 01:12:32.851 UTC [81407] [keycloak-0] DETAIL: parameters: $1 = '0', $2 = 'jSt9GEPVQLJsO-1CeJjVgltg'
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2026-09-04 01:12:32.852 UTC [81407] [keycloak-0] DETAIL: parameters: $1 = '131a9912-b578-4b9c-b16a-97518704077e', $2 = 'local', $3 = 'local', $4 = '0', $5 = 'jSt9GEPVQLJsO-1CeJjVgltg'
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2026-09-04 01:12:32.860 UTC [81407] [keycloak-0] DETAIL: parameters: $1 = '0', $2 = 'jSt9GEPVQLJsO-1CeJjVgltg'
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2026-09-04 01:12:32.862 UTC [81407] [keycloak-0] DETAIL: parameters: $1 = '131a9912-b578-4b9c-b16a-97518704077e', $2 = 'local', $3 = 'local', $4 = '0', $5 = 'jSt9GEPVQLJsO-1CeJjVgltg'
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2026-09-04 01:12:32.863 UTC [81407] [keycloak-0] DETAIL: parameters: $1 = NULL, $2 = '1788484352', $3 = '{"ipAddress":"10.42.1.50","authMethod":"openid-connect","rememberMe":false,"started":0,"notes":{"KC_DEVICE_NOTE":"
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2026-09-04 01:12:32.864 UTC [81407] [keycloak-0] DETAIL: parameters: $1 = '{"authMethod":"openid-connect","notes":{"clientId":"131a9912-b578-4b9c-b16a-97518704077e","userSessionStartedAt":"1788484352","iss":"https://aut
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2026-09-04 01:12:34.934 UTC [81376] [keycloak-1] DETAIL: parameters: $1 = '0', $2 = 'jSt9GEPVQLJsO-1CeJjVgltg'
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2026-09-04 01:12:34.936 UTC [81376] [keycloak-1] DETAIL: parameters: $1 = 'jSt9GEPVQLJsO-1CeJjVgltg', $2 = '0'
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2026-09-04 01:12:34.937 UTC [81376] [keycloak-1] DETAIL: parameters: $1 = '131a9912-b578-4b9c-b16a-97518704077e', $2 = 'local', $3 = 'local', $4 = '0', $5 = 'jSt9GEPVQLJsO-1CeJjVgltg'
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2026-09-04 01:12:34.938 UTC [81376] [keycloak-1] DETAIL: parameters: $1 = 'jSt9GEPVQLJsO-1CeJjVgltg', $2 = '0', $3 = '131a9912-b578-4b9c-b16a-97518704077e', $4 = 'local', $5 = 'local'
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2026-09-04 01:12:34.944 UTC [81376] [keycloak-1] DETAIL: parameters: $1 = '1788484354', $2 = '1', $3 = '131a9912-b578-4b9c-b16a-97518704077e', $4 = 'local', $5 = 'local', $6 = '0', $7 = 'jSt9GEPVQLJsO-1CeJjVgltg', $8 =
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2026-09-04 01:12:34.946 UTC [81376] [keycloak-1] DETAIL: parameters: $1 = '1788484354', $2 = '1', $3 = '0', $4 = 'jSt9GEPVQLJsO-1CeJjVgltg', $5 = '0'
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=== 요약: 파드별 질의 건수 ===
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6 [keycloak-1]
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6 [keycloak-0]
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