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52 lines
3.2 KiB
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52 lines
3.2 KiB
Markdown
# STATUS — phase `dstamp` (discourse abra-stamp drift)
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Builder. SSOT: `cc-ci-plan/plan-phase-dstamp-discourse-drift.md`. Gates M1, M2.
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## Phase state: INVESTIGATING (no gate claimed yet)
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## What is established (direct evidence, reproducible)
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- **abra is CONSTANT, not the cause.** abra binary `bf6azhpi…-abra-0.13.0-beta` is the store
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path for every nixos system generation from system-4 (2026-06-01) through system-11 (now).
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No abra change between 06-05 and 06-10.
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HOW: `for g in $(ls -d /nix/var/nix/profiles/system-*-link); do readlink -f "$g/sw/bin/abra"; done`
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on cc-ci. EXPECTED: all `…bf6azhpi…` from system-4 on.
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- **abra's chaos-version = `SmallSHA(git HEAD of the recipe checkout)`** (+`+U` if worktree
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dirty). Source: abra@06a57de `cli/app/deploy.go:106,168,365-373` (chaos →
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`toDeployVersion = Recipe.ChaosVersion()`), `pkg/recipe/git.go:300-318` (`ChaosVersion` =
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`SmallSHA(Head())`), `:483-495` (`Head` = go-git `repo.Head()`). In chaos mode
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`Recipe.Ensure` early-returns (`pkg/recipe/git.go:41-43`) — NO env-version re-checkout.
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- **The isolated git/abra path stamps CORRECTLY now.** Three faithful reproductions on cc-ci
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(scratch ABRA_DIR, fake domain, deploys bail at `secret not generated` AFTER the chaos
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version is computed) all log `taking chaos version: 7ae7b0f7` (= PR head), NOT `eb96de9`:
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1. `cp -a` canonical recipe + manual tag/head checkout.
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2. real non-chaos base deploy (go-git `EnsureVersion` tag checkout) → CLI re-checkout head → chaos.
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3. exact `fetch_recipe` replica: clone mirror `recipe-maintainers/discourse` @7ae7b0f +
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`git fetch upstream refs/tags/*` → base deploy → re-checkout head → chaos.
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HOW (variant 3, re-runnable cold): see JOURNAL-dstamp 2026-06-11 "mirror-faithful repro".
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EXPECTED: `DEBU app/deploy.go:372 version: taking chaos version: 7ae7b0f7`.
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- **Same ref, solo run was GREEN; clustered runs DRIFTED.** discourse @ ref `7ae7b0f76efb`:
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run **184** (2026-06-05 02:17, solo) = **L4, upgrade PASS**; the 06-10/06-11 runs
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**m2b-discourse** (06-10 20:54), **m2p-discourse** (06-11 00:44), **ab-discourse-7ae7b0f-oldmain**
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(06-11 00:48) = **L1, upgrade FAIL** (`chaos commit 'eb96de94+U', not the intended PR-head
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'7ae7b0f76efb' (HC1)`). HOW: `grep -oE '"level": [0-9]+|"upgrade": "[a-z]+"'
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/var/lib/cc-ci-runs/{184,m2p-discourse}/results.json`.
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- **All same-ref discourse runs share ONE swarm stack.** `naming.app_domain(recipe,pr,ref)` =
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`<recipe[:4]>-<6hex(recipe|pr|ref)>.ci.commoninternet.net` → identical for identical
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(recipe,pr,ref). The upgrade `chaos_redeploy` bypasses `deploy_app`'s app-domain flock
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(`lifecycle.chaos_redeploy` / `generic.perform_upgrade`). LEADING HYPOTHESIS: the 06-10/06-11
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drift is a CONCURRENCY ARTIFACT of the clustered rcust-M2 A/B discourse experiments racing on
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the shared stack — NOT an abra/recipe/env regression. Under test now.
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## In flight
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- Isolated clean real run (`CCCI_RUN_ID=dstamp-repro1`, STAGES=install,upgrade, ref 7ae7b0f,
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no concurrent discourse run) with full console capture → decides: isolated real run GREEN
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(⇒ concurrency artifact) vs DRIFT (⇒ read exact console). Console: `/var/lib/cc-ci-runs/dstamp-repro1.console.log` on cc-ci.
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## Blocked
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- (none)
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