Session 55: K3s load test (10x perf gain), w2 node down, cluster cleanup, version+brotli code pushed

projects/business/memory/sessions.md

@@ -1305,3 +1305,30 @@
 - **Budget:** €181.71 remaining, Revenue: €9
 - **Open bugs:** 0 CRITICAL, 1 HIGH (BUG-076 node down), 0 MEDIUM, 0 LOW
 - **Status:** Production operational but HA degraded — single worker node
+
+## Session 55 — 2026-02-18 18:00 UTC (Evening Session)
+- **Node situation flipped:** w1 recovered (investor rebooted), but w2 now NotReady/unreachable. HA still degraded — single worker.
+- **DevOps agent completed:**
+  - Force-deleted all stuck Terminating pods on w2 (cert-manager, CNPG, docfast, coredns)
+  - New pods rescheduled to w1 where topology constraints allow
+  - Pending pods: 1 docfast (topology spread), 1 main-db-2, 1 pooler (anti-affinity)
+  - w2 completely unreachable — needs Hetzner Console reboot
+- **K3s Load Test completed (production, light load):**
+  - Sequential avg: 0.198s (10x improvement over Docker's ~2.1s)
+  - P95: 0.235s, range 0.176-0.235s
+  - 2 concurrent: ~0.27s each, 100% success
+  - Large payload (104KB, 3 pages): 1.65s
+  - 15-worker pool with plenty of headroom
+  - Finding: staging DB had no tables (schema not migrated after K3s setup)
+- **Backend dev (version + Brotli):**
+  - Code pushed: commit 170ed44 — version bumped to 0.2.9, shrink-ray-current added for Brotli
+  - CI DID NOT BUILD the image — commit hash image not found in registry
+  - Staging manually reverted to working image (e611609)
+  - TODO: Investigate why CI didn't trigger/build for this commit
+- **Staging DB issue discovered:** docfast_staging database has no tables — staging is not fully functional
+- **Support:** Zero open tickets ✅
+- **Investor Test:** All 5 ✅
+- **Budget:** €181.71 remaining, Revenue: €9
+- **Open bugs:** 0 CRITICAL, 1 HIGH (BUG-076 — now w2 down instead of w1)
+- **Escalation:** w2 reboot needed via Hetzner Console
+- **New issues found:** Staging DB missing schema, CI pipeline may have failed for latest commit

projects/business/memory/state.json

@@ -3,7 +3,7 @@
   "phaseLabel": "Build Production-Grade Product",
   "status": "launch-ready",
   "product": "DocFast \u2014 HTML/Markdown to PDF API",
-  "currentPriority": "k3s-w1 NODE DOWN — running on w2 only. HA degraded. Escalated to investor for Hetzner reboot.",
+  "currentPriority": "k3s-w2 NODE DOWN — running on w1 only. HA degraded. Escalated to investor for Hetzner reboot. Version+Brotli code pushed but CI didn't build image.",
   "ownerDirectives_PRIORITY": "Process these IN ORDER. Do not skip.",
   "ownerDirectives": [
     "Stripe: owner has existing Stripe account from another project \u2014 use same account, just create separate Product + webhook endpoint for DocFast.",
@@ -65,9 +65,18 @@
     "emailDeliveryNote": "MX record fixed 2026-02-17. Postfix + DKIM operational."
   },
   "loadTestResults": {
-    "sequential": "~2.1s per PDF, ~28/min",
-    "concurrent": "3 safe, 5th fails at ~16s",
-    "server": "CAX11 (2 vCPU ARM, 4GB RAM), container 512MB cap"
+    "docker_old": {
+      "sequential": "~2.1s per PDF, ~28/min",
+      "concurrent": "3 safe, 5th fails at ~16s",
+      "server": "CAX11 (2 vCPU ARM, 4GB RAM), container 512MB cap"
+    },
+    "k3s_current": {
+      "sequential": "~0.2s avg per PDF (10x improvement)",
+      "p95": "0.235s",
+      "concurrent": "2 concurrent at ~0.27s, 15-worker pool",
+      "largePayload": "1.65s for 104KB/3-page PDF",
+      "server": "K3s cluster, 2x CAX11 workers (1 active due to w2 down)"
+    }
   },
   "infrastructure": {
     "domain": "docfast.dev",
@@ -104,10 +113,10 @@
   },
   "openBugs": {
     "CRITICAL": [],
-    "HIGH": ["BUG-076: k3s-w1 node down, HA degraded, needs Hetzner reboot"],
+    "HIGH": ["BUG-076: k3s-w2 node down (was w1, now w2), HA degraded, needs Hetzner reboot"],
     "MEDIUM": [],
     "LOW": [],
-    "note": "Session 54: k3s-w1 node down. CNPG failover to main-db-2 worked. Production running on w2 only. HA validated but degraded."
+    "note": "Session 55: w1 recovered, w2 now down. Stuck pods force-deleted. Production on w1 only. K3s load test: ~0.2s avg (10x faster than Docker). Version/Brotli code pushed, CI didn't build."
   },
   "blockers": [],
   "resolvedBlockers": [
@@ -120,5 +129,5 @@
     "Checkout .env persistence + CI/CD secrets pipeline \u2014 DONE 2026-02-17"
   ],
   "startDate": "2026-02-14",
-  "sessionCount": 54
+  "sessionCount": 55
 }