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fix: raise inotify limits to prevent gateway EMFILE crashes #182

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Merged
KrasimirKralev merged 1 commit into from
Jun 9, 2026
Merged

fix: raise inotify limits to prevent gateway EMFILE crashes #182

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29 changes: 24 additions & 5 deletions scripts/setup-optimizations.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ echo "=== ClawBox Optimizations ==="

# ── 1. TTS Caching Script ─────────────────────────────────────────────────

echo "[1/4] Installing TTS cache system..."
echo "[1/5] Installing TTS cache system..."
mkdir -p "$SCRIPTS_DST"

cat > "$SCRIPTS_DST/tts-cached.sh" << 'TTS_EOF'
Expand Down Expand Up @@ -65,7 +65,7 @@ echo " ✓ TTS cache script installed"

# ── 2. CPU Optimization Script ────────────────────────────────────────────

echo "[2/4] Installing CPU optimizer..."
echo "[2/5] Installing CPU optimizer..."

cat > "$SCRIPTS_DST/optimize-cpu.sh" << 'CPU_EOF'
#!/bin/bash
Expand Down Expand Up @@ -125,15 +125,34 @@ echo " ✓ CPU optimizer installed"

# ── 3. Pre-cache Common Phrases ───────────────────────────────────────────

echo "[3/4] Skipping TTS pre-cache (servers start on demand)"
echo "[3/5] Skipping TTS pre-cache (servers start on demand)"

# ── 4. Apply CPU Optimization ─────────────────────────────────────────────

echo "[4/4] Applying CPU optimization..."
echo "[4/5] Applying CPU optimization..."
su - "$CLAWBOX_USER" -c "bash '$SCRIPTS_DST/optimize-cpu.sh'" 2>/dev/null || true

# ── 5. inotify limits for the OpenClaw gateway's file watchers ─────────────

echo "[5/5] Raising inotify limits for gateway file watchers..."
# The gateway runs several file watchers (skills/workspace, config reload,
# MEMORY.md). Jetson's stock ceilings (128 instances / 65536 watches) can be
# exhausted under load and surface as "EMFILE: too many open files" crashes +
# restart loops. Persist higher limits and apply now — best-effort: the apply
# is a no-op (and must not fail the install) inside CI/containers where
# /proc/sys is read-only. See ID-Robots/clawbox#160.
cat > /etc/sysctl.d/99-clawbox-inotify.conf << 'INOTIFY_EOF' || true
# ClawBox: raise inotify ceilings so the OpenClaw gateway's watchers don't hit
# EMFILE under load. See ID-Robots/clawbox#160.
fs.inotify.max_user_instances = 512
fs.inotify.max_user_watches = 524288
INOTIFY_EOF
sysctl -p /etc/sysctl.d/99-clawbox-inotify.conf >/dev/null 2>&1 || true
echo " ✓ inotify limits raised (instances=512, watches=524288)"

echo ""
echo "=== Optimizations Complete ==="
echo " • TTS caching system installed"
echo " • CPU affinity optimization for AI workloads"
echo " • Threading environment variables configured"
echo " • Threading environment variables configured"
echo " • inotify limits raised for gateway watchers"
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