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document-haness/docs/clean-architecture-backend-template/final/evidence/raw/a10-f005-hyperloglog-merge-budget.txt
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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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openjdk version "21.0.12" 2026-07-21
[SDK가 채워 넣는 budget] collectionBudget(키 수, 요청 바이트)
요청 512 -> maxRequestBytes 512 allowsRequestBytes(요청) true
요청 4096 -> maxRequestBytes 4096 allowsRequestBytes(요청) true
요청 512000 -> maxRequestBytes 512000 allowsRequestBytes(요청) true
이 경로의 요청 최대 : 렌더된 키 512 바이트 x 요소 천장 1000 = 512000 바이트
[호출자가 건네는 budget] 같은 요청을 거부할 수 있다
maxRequestBytes 4096, 요청 8192 -> allowsRequestBytes false
[채워 넣은 budget이 실제로 거부하는 것]
요소 1000개 -> 통과, maxReplyBytes 1048576000, timeout PT2S
요소 1001개 -> RedisCommandRejectedException: operation over 1001 elements exceeds the configured ceiling of 1000 [command=KEY, mode=STANDALONE, ambiguous=false]
[PFCOUNT/PFMERGE가 선언하는 expectedReplyBytes] 0
allowsReplyBytes(0) = true