Commit Graph
5 Commits
Author SHA1 Message Date
DongHyeonkaandClaude Opus 5 74c9b3cea7 docs: replace prose placeholders in reproduction steps with executable commands
The audit found ~80 placeholders, and the damaging ones were where the
measuring apparatus itself was prose rather than a command:

  a6  "( curl ... ) & 를 20개 띄우고 wait"  — the 22.2s headline came from this
  a3  "<로그인 반복, sid 를 /tmp/sids 에>"  — the whole RPO measurement
  a3  "<sid 목록>"                          — the control it is compared against
  a5  "<수신 파드IP>"                       — the injection
  a8  writes /tmp/tok, reads /tmp/rt        — self-inconsistent, sent an empty token
  b3  $KC / $RT / $NEW never assigned
  c2  bare kcadm.sh with no kubectl exec
  a1  conntrack tuples written by hand, though the direction flips per restart

Each is now a shell-expandable form: pod IPs from jsonpath, the admin password
from the secret, ids from kcadm --format csv, conntrack tuples derived from
"conntrack -L" with awk rather than transcribed.

Then the rewritten commands were executed against the live cluster, and one
of them failed — the 20-way load generator, written as "kubectl run --rm -i",
lost its output stream twice in a row. That is a trap this series already hit
once, and the rewrite reintroduced it. A-6 now uses a resident probe pod that
collects into a file and is cat-ed once; verified 20/20 lines.

Evidence: docs/evidence/followup/05-command-reproducibility.txt

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 17:01:54 +09:00
DongHyeonkaandClaude Opus 5 e0d27d47ce docs: correct the places where documents contradicted their own evidence
An independent audit found ten documents printing values their evidence files do not contain. C-1 printed a session count of 0 where the evidence says 4, C-2 printed a success readback for a command that exited 1, and A-1 credited the conntrack flush with a split that the timestamps attribute to a pod restart four seconds earlier.

Also measured wal_writer_delay, which A-3 had asserted as matching without ever querying it, relabelled the A-6 control that moved 41 percent, noted A-8's nine-sample resolution, corrected D-1's RTO to the 41 seconds its own timeline shows, and added a correction banner to D-2. Every experiment document now links its evidence files with their real collection times, and the duplicate screenshots are documented as duplicates.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 16:35:49 +09:00
DongHyeonkaandClaude Opus 5 1de6108157 docs: add the prerequisite knowledge this lab assumes
Builds up from HTTP statelessness to why session storage location determines the operational response, so the measurements have context to land in.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 10:24:21 +09:00
DongHyeonkaandClaude Opus 5 22d873eb4f docs: capture the SQL the other node actually runs, and correct the replication claim
PostgreSQL statement logging shows keycloak-1 reading and updating the session created on keycloak-0. The same transaction reveals optimistic locking via VERSION, SKIP LOCKED, and synchronous_commit turned off. Fixes the earlier concept note that credited Infinispan with cross-node propagation.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 10:14:45 +09:00
DongHyeonkaandClaude Opus 5 e5ebaeb623 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