chain stall check

.github/workflows/run_antithesis_test.yml

@@ -100,6 +100,11 @@ on:
         required: false
         default: false
         description: Enable to run an smoke test.
+      quiet_recovery:
+        type: boolean
+        required: false
+        default: false
+        description: Enable quiet recovery checks (pauses fault injection to verify chain self-healing)
 
 jobs:
   manual_run:
@@ -153,6 +158,7 @@ jobs:
             custom.lotus_miner_1_tag=${{ inputs.lotus_miner_1_tag }}
             custom.forest_tag=${{ inputs.forest }}
             custom.forest_0_tag=${{ inputs.forest_0_tag }}
+            custom.quiet_recovery=${{ inputs.quiet_recovery }}
 
 
   scheduled_run_a:

docker-compose.yaml

@@ -156,6 +156,9 @@ services:
       # Power / reorg
       - STRESS_WEIGHT_REORG=${STRESS_WEIGHT_REORG:-0}
       - STRESS_WEIGHT_POWER_SLASH=${STRESS_WEIGHT_POWER_SLASH:-2}
+      # Quiet recovery: pauses all fault injection to verify chain self-healing (off by default)
+      - QUIET_RECOVERY_ENABLED=${QUIET_RECOVERY_ENABLED:-0}
+      - STRESS_WEIGHT_QUIET_RECOVERY=${STRESS_WEIGHT_QUIET_RECOVERY:-0}
       # Protocol fuzzer: 0=off, 1=on (fuzzer uses its own Go-code defaults for weights)
       - FUZZER_ENABLED=${FUZZER_ENABLED:-0}
       #

workload/cmd/stress-engine/main.go

@@ -255,6 +255,8 @@ func buildDeck() {
 		{"DoF3FinalityMonitor", "STRESS_WEIGHT_F3_MONITOR", DoF3FinalityMonitor, 2},
 		{"DoF3FinalityAgreement", "STRESS_WEIGHT_F3_AGREEMENT", DoF3FinalityAgreement, 3},
 		{"DoDrandBeaconAudit", "STRESS_WEIGHT_DRAND_BEACON_AUDIT", DoDrandBeaconAudit, 3},
+		// Quiet recovery: pauses all faults, checks self-healing (off by default, enable via QUIET_RECOVERY_ENABLED=1)
+		{"DoQuietRecovery", "STRESS_WEIGHT_QUIET_RECOVERY", DoQuietRecovery, 0},
 	}
 
 	// Non-FOC stress vectors — skipped when FOC profile is active.

workload/cmd/stress-engine/quiet_recovery_vectors.go

@@ -0,0 +1,199 @@
+package main
+
+import (
+	"log"
+	"os"
+	"os/exec"
+	"time"
+
+	"github.com/antithesishq/antithesis-sdk-go/assert"
+
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/lotus/chain/types"
+)
+
+// ===========================================================================
+// Quiet Recovery Vector
+//
+// Pauses Antithesis fault injection for a configurable duration, then verifies
+// that the Filecoin network self-heals: chain advances, nodes converge, and
+// all nodes agree on the tipset at finalized height.
+//
+// Gated by QUIET_RECOVERY_ENABLED=1 (off by default — pausing faults is
+// disruptive to the entire devnet). Enable via the notebook or GH Action toggle.
+//
+// Requires the ANTITHESIS_STOP_FAULTS binary injected by the Antithesis runtime.
+// ===========================================================================
+
+const (
+	quietDuration      = "45" // seconds to pause faults (string for exec arg)
+	quietStabilizeSecs = 15   // seconds to wait for gossip/reconnection after faults pause
+	quietDriftThreshold = 3   // max block drift to consider nodes "converged"
+)
+
+// DoQuietRecovery requests a fault-free window and verifies chain self-healing.
+func DoQuietRecovery() {
+	if os.Getenv("QUIET_RECOVERY_ENABLED") != "1" {
+		return
+	}
+
+	stopBin := os.Getenv("ANTITHESIS_STOP_FAULTS")
+	if stopBin == "" {
+		debugLog("[quiet-recovery] ANTITHESIS_STOP_FAULTS not set, skipping")
+		return
+	}
+
+	if len(nodeKeys) < 2 {
+		return
+	}
+
+	// ── Step 1: Record pre-recovery heights ──────────────────────────────────
+	preHeights := queryNodeHeights()
+	preMax := maxEpoch(preHeights)
+	if preMax == 0 {
+		log.Println("[quiet-recovery] no responsive nodes, skipping")
+		return
+	}
+	log.Printf("[quiet-recovery] pre-recovery max height: %d", preMax)
+
+	// ── Step 2: Pause fault injection ────────────────────────────────────────
+	log.Printf("[quiet-recovery] requesting %ss quiet period", quietDuration)
+	cmd := exec.CommandContext(ctx, stopBin, quietDuration)
+	if err := cmd.Run(); err != nil {
+		log.Printf("[quiet-recovery] ANTITHESIS_STOP_FAULTS failed: %v", err)
+		return
+	}
+
+	// ── Step 3: Wait for stabilization ───────────────────────────────────────
+	time.Sleep(time.Duration(quietStabilizeSecs) * time.Second)
+
+	// ── Step 4: Record post-recovery heights ─────────────────────────────────
+	postHeights := queryNodeHeights()
+	postMax := maxEpoch(postHeights)
+	postMin := minEpoch(postHeights)
+	log.Printf("[quiet-recovery] post-recovery max height: %d, min height: %d", postMax, postMin)
+
+	// ── Step 5: Assert chain advanced ────────────────────────────────────────
+	advanced := postMax > preMax
+	assert.Sometimes(advanced, "Chain advanced during quiet period", map[string]any{
+		"pre_max_height":  preMax,
+		"post_max_height": postMax,
+	})
+	if advanced {
+		log.Printf("[quiet-recovery] chain advanced from %d to %d", preMax, postMax)
+	} else {
+		log.Printf("[quiet-recovery] chain did NOT advance (pre=%d post=%d)", preMax, postMax)
+	}
+
+	// ── Step 6: Assert consensus recovery (drift check) ──────────────────────
+	if len(postHeights) < 2 {
+		log.Println("[quiet-recovery] fewer than 2 responsive nodes post-recovery, skipping convergence check")
+		return
+	}
+
+	drift := int(postMax - postMin)
+	converged := drift <= quietDriftThreshold
+	assert.Sometimes(converged, "Consensus recovered during quiet period", map[string]any{
+		"drift":     drift,
+		"threshold": quietDriftThreshold,
+		"nodes":     len(postHeights),
+	})
+
+	if converged {
+		log.Printf("[quiet-recovery] consensus recovered (drift=%d <= %d)", drift, quietDriftThreshold)
+	} else {
+		log.Printf("[quiet-recovery] consensus NOT recovered (drift=%d > %d)", drift, quietDriftThreshold)
+		return // don't check tipset agreement when nodes are diverged
+	}
+
+	// ── Step 7: Assert tipset agreement at finalized height ──────────────────
+	// Use the minimum post-recovery height minus a small finality buffer as the
+	// comparison point. All converged nodes should agree on this tipset.
+	const finalityBuffer = 5
+	checkHeight := postMin - abi.ChainEpoch(finalityBuffer)
+	if checkHeight <= 0 {
+		log.Println("[quiet-recovery] chain too short for finalized tipset check")
+		return
+	}
+
+	var cidStrings []string
+	var respondents int
+	for _, name := range nodeKeys {
+		h, ok := postHeights[name]
+		if !ok || h == 0 {
+			continue
+		}
+		ts, err := nodes[name].ChainGetTipSetByHeight(ctx, checkHeight, types.EmptyTSK)
+		if err != nil {
+			debugLog("[quiet-recovery] ChainGetTipSetByHeight(%d) failed on %s: %v", checkHeight, name, err)
+			continue
+		}
+		cids := ""
+		for _, c := range ts.Cids() {
+			cids += c.String() + ","
+		}
+		cidStrings = append(cidStrings, cids)
+		respondents++
+	}
+
+	if respondents < 2 {
+		log.Printf("[quiet-recovery] only %d nodes returned tipsets at height %d, skipping agreement check", respondents, checkHeight)
+		return
+	}
+
+	allAgree := true
+	for i := 1; i < len(cidStrings); i++ {
+		if cidStrings[i] != cidStrings[0] {
+			allAgree = false
+			break
+		}
+	}
+
+	assert.Always(allAgree, "State consistent after quiet period recovery", map[string]any{
+		"check_height": checkHeight,
+		"respondents":  respondents,
+		"drift":        drift,
+	})
+
+	if allAgree {
+		log.Printf("[quiet-recovery] all %d nodes agree on tipset at height %d", respondents, checkHeight)
+	} else {
+		log.Printf("[quiet-recovery] TIPSET DISAGREEMENT at height %d among %d nodes", checkHeight, respondents)
+	}
+}
+
+// queryNodeHeights returns the chain head height for each connected node.
+func queryNodeHeights() map[string]abi.ChainEpoch {
+	heights := make(map[string]abi.ChainEpoch, len(nodeKeys))
+	for _, name := range nodeKeys {
+		head, err := nodes[name].ChainHead(ctx)
+		if err != nil {
+			debugLog("[quiet-recovery] ChainHead failed on %s: %v", name, err)
+			continue
+		}
+		heights[name] = head.Height()
+	}
+	return heights
+}
+
+// maxEpoch returns the maximum height from a height map.
+func maxEpoch(heights map[string]abi.ChainEpoch) abi.ChainEpoch {
+	var max abi.ChainEpoch
+	for _, h := range heights {
+		if h > max {
+			max = h
+		}
+	}
+	return max
+}
+
+// minEpoch returns the minimum height from a height map (ignoring zeros).
+func minEpoch(heights map[string]abi.ChainEpoch) abi.ChainEpoch {
+	var min abi.ChainEpoch
+	for _, h := range heights {
+		if h > 0 && (min == 0 || h < min) {
+			min = h
+		}
+	}
+	return min
+}