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CHANGELOG + REPORT: calcom 1536M and PostgreSQL 18
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
2026-09-28 11:49:25 +02:00

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REPORT — 2026-09-28: claper → PostgreSQL 17; calcom → 1536M and PostgreSQL 18

Brief: "golden, Day-0 vouch, kept data from off-site…" Part C. Architecture read: 09-update-architecture.md §3 decisions 35–42 (42's reasoning applied as decision 43).

app move bench (LXC 9401, demo-hp) box 9202 (guarded Update) result
claper postgres 16 → 17 proven — converted 30.8 s, 32 tables equal, seed back, peaks 75.8 % / 78.3 %, 0 kills proven — CONVERTED in 7.2 s, done 47 s, PG_VERSION 17, seed back live catalog 4a249b9, engine gate ALLOWED
calcom memory 768M → 1536M (9555e73) — 768M OOM-killed every start; 1536M anon peak 817 MiB (53 %) fixed, R-703 closed
calcom postgres 16 → 18 proven — converted 35.0 s, 122 tables equal, seed back, anon 61.5 %, 0 kills proven — converted, done 68 s, PG_VERSION 18, seed back live catalog 037f956, engine gate ALLOWED
  • Fixture: claper rpc register_user + authenticate readback (negative control: wrong password refuses) — c5015ce.
  • calcom fixture: POST /api/auth/setup + public page readback (negative control: unknown name 404) — b35fc7f.
  • New rows: R-702 (claper default admin admin@claper.co/claper, P1, open), R-703 (calcom OOM at 768 MB — closed by 9555e73), R-704 (a crash-loop hold survives remove + reinstall).
  • Bench LXC 9401 created twice and destroyed twice (hostname checked), template removed; local-lvm 55.6 % at teardown.

Evidence: felhom.eu/documentation/audits/pg-calcom-claper-2026-09-28/.