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IX: Phase 2 done (30 sites -> FPM/OPcache) + FPM default for new accounts

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20 remaining ea-php suPHP candidates flipped to FPM + all 10 alt-php84 Selector sites
reset native -> ea-php84 FPM. 30/30 OK, bodies clean, zero rollbacks (biggest: cryoweave
13.5s->0.87s, drsticken 9.1s->0.29s). Four flat-looking one-shot samples re-verified faster
at steady-state. Set default_accounts_to_fpm=1 so new accounts provision on FPM. 41 sites
now on FPM/OPcache; ~31 fast-but-cold remain (Phase 3, optional).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Mike Swanson
2026-07-21 05:11:45 -07:00
parent dd324bce78
commit 56b3214091
1 changed files with 17 additions and 7 deletions
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24
clients/internal-infrastructure/reports/2026-07-20-ix-php-fpm-opcache-remediation.md
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@@ -1,7 +1,7 @@
# Remediation — IX PHP handler / OPcache (fleet-wide) + ezfastautoglass pilot
**Date:** 2026-07-20 · **Server:** ix.azcomputerguru.com (CloudLinux 9 + CageFS + cPanel/WHM, Dell R740xd)
**Author:** Mike Swanson (GURU-5070) · **Status:** Pilot + Phase 1 COMPLETE (12 sites); Phases 2-3 PROPOSED (awaiting go)
**Author:** Mike Swanson (GURU-5070) · **Status:** Pilot + Phase 1 + Phase 2 COMPLETE (41 sites on FPM/OPcache; new-account default set); Phase 3 (remaining ~31 fast-but-cold sites) PROPOSED
**Related:** `2026-07-20-ix-mysql-ssd-move-incident-postmortem.md`, `2026-07-20-ix-web-tier-to-ssd-plan.md`
---
@@ -121,10 +121,21 @@ not apply under FPM), which cPanel already maintains.
arizonahatters 3.18->0.79 · fsgtucson 3.32->0.50 · acepickupparts 3.36->0.62 · gurushow 2.35->0.60 ·
tarafulcreations 2.85->0.55 · phxpropane 2.76->0.37. (ea-php80/82 opcache pkgs already present; ea-php84
installed during pilot.)
- **Phase 2 — Remaining fix candidates (down to ~1s), ~26 sites, incl. the 10 alt-php Selector sites.**
- **Phase 3 — The fast-but-cold remainder** (low TTFB today, still benefits under load / plugin growth) +
decide whether to make **FPM the default for new accounts** (WHM Tweak Settings / a `postwwwacct` hook) so
this doesn't silently reaccumulate.
- **Phase 2 — DONE (2026-07-21).** 20 remaining ea-php suPHP candidates flipped to FPM (kept version) + all 10
alt-php84 Selector sites reset native -> ea-php84 FPM. 30/30 OK, bodies clean, zero rollbacks. Biggest wins:
cryoweave 13.5->0.87 · drsticken 9.1->0.29 · packetdial 5.9->0.45 · agingwithoutfamily 5.3->0.20. The 10
alt-php sites: thrive 1.88->0.30 · photonicapps 2.09->0.27 · blackswanarchery 2.46->0.21 · valleydevelopmentcorp
2.81->0.38 · royalweedcontrol 1.00->0.19 · gentlemansacres 2.65->0.57 · hightechmortgage ->0.62 (512M OOM fix
re-asserted + held through .user.ini regen) · cascadestucson ->0.73 · drelenaparra/furrier already fast. Four
sites whose one-shot "after" sample looked flat/worse (thecenturions, grabblaw, ultraperformance, cascades) were
re-checked at steady-state (4 warm samples) and are all genuinely faster (grabblaw 2.25->0.07, thecenturions
1.70->0.85) — the flat samples were cold-first-hit noise.
- **Phase 2b — FPM as default for NEW accounts: DONE (2026-07-21).** `whmapi1 php_set_default_accounts_to_fpm
default_accounts_to_fpm=1` (0->1). New cPanel accounts provision on FPM, so the anti-pattern won't silently rebuild.
- **Phase 3 (PROPOSED) — The fast-but-cold remainder** (~31 ea-php suPHP sites already < 1s TTFB; still recompile
per request, so they benefit under load / as plugins grow). Same one-flag `php_fpm=1` per vhost. Lower urgency
since they're not user-visibly slow today; convert opportunistically or in one batch. (New-account default is
already handled — Phase 2b.)
**Per-site procedure (non-negotiable, from the SSD-move incident lessons):**
1. Pre-check bodies clean (abort if already erroring).
@@ -163,8 +174,7 @@ privacy-policy HTTP 200, full byte counts; TTFB 0.41-0.48s across repeated warm
## 7. Open items
- Get go/no-go on **Phase 2** (remaining ~26 sites incl. the 10 alt-php Selector sites) and rollout order.
- Decide on **FPM-as-default for new accounts** (prevents silent reaccumulation).
- **Phase 2 + new-account default: DONE (2026-07-21).** Optional: Phase 3 (fast-but-cold remainder) on your go.
- **hightechmortgage.com 500: RESOLVED (2026-07-20)** — root cause was PHP OOM (`memory_limit` 128M exhausted
by WooCommerce + AccelerateWP + crypto plugins), not the handler. Raised to 512M via `.user.ini`; site
returns 200, no new fatals. Will move to FPM in Phase 2 (memory_limit carries over).