Update AppImage

AppImage/components/health-status-modal.tsx

@@ -1,8 +1,11 @@
 "use client"
 
+import type React from "react"
+
 import { useState, useEffect } from "react"
 import { Dialog, DialogContent, DialogDescription, DialogHeader, DialogTitle } from "@/components/ui/dialog"
 import { Badge } from "@/components/ui/badge"
+import { Button } from "@/components/ui/button"
 import {
   Loader2,
   CheckCircle2,
@@ -19,6 +22,7 @@ import {
   FileText,
   RefreshCw,
   Shield,
+  X,
 } from "lucide-react"
 
 interface CategoryCheck {
@@ -148,17 +152,53 @@ export function HealthStatusModal({ open, onOpenChange, getApiUrl }: HealthStatu
 
   const stats = getHealthStats()
 
+  const handleCategoryClick = (categoryKey: string, status: string) => {
+    if (status === "OK") return // No navegar si está OK
+
+    onOpenChange(false) // Cerrar el modal
+
+    // Mapear categorías a tabs
+    const categoryToTab: Record<string, string> = {
+      storage: "storage",
+      disks: "storage",
+      network: "network",
+      vms: "vms",
+      logs: "logs",
+      hardware: "hardware",
+      services: "hardware",
+    }
+
+    const targetTab = categoryToTab[categoryKey]
+    if (targetTab) {
+      // Disparar evento para cambiar tab
+      const event = new CustomEvent("changeTab", { detail: { tab: targetTab } })
+      window.dispatchEvent(event)
+    }
+  }
+
+  const handleAcknowledge = async (errorKey: string, e: React.MouseEvent) => {
+    e.stopPropagation() // Prevent navigation
+
+    try {
+      await fetch(getApiUrl(`/api/health/acknowledge/${errorKey}`), {
+        method: "POST",
+      })
+      // Refresh health data
+      await fetchHealthDetails()
+    } catch (err) {
+      console.error("[v0] Error acknowledging:", err)
+    }
+  }
+
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent className="max-w-3xl max-h-[85vh] overflow-y-auto">
         <DialogHeader>
-          <DialogTitle className="flex items-center justify-between">
-            <div className="flex items-center gap-2">
-              <Activity className="h-6 w-6" />
-              System Health Status
-            </div>
-            {healthData && getStatusBadge(healthData.overall)}
+          <DialogTitle className="flex items-center gap-2">
+            <Activity className="h-6 w-6" />
+            System Health Status
           </DialogTitle>
+          <div className="mt-4">{healthData && getStatusBadge(healthData.overall)}</div>
           <DialogDescription>Detailed health checks for all system components</DialogDescription>
         </DialogHeader>
 
@@ -213,13 +253,14 @@ export function HealthStatusModal({ open, onOpenChange, getApiUrl }: HealthStatu
                 return (
                   <div
                     key={key}
+                    onClick={() => handleCategoryClick(key, status)}
                     className={`flex items-start gap-3 p-3 rounded-lg border transition-colors ${
                       status === "OK"
                         ? "bg-green-500/5 border-green-500/20 hover:bg-green-500/10"
                         : status === "WARNING"
-                          ? "bg-yellow-500/5 border-yellow-500/20 hover:bg-yellow-500/10"
+                          ? "bg-yellow-500/5 border-yellow-500/20 hover:bg-yellow-500/10 cursor-pointer"
                           : status === "CRITICAL"
-                            ? "bg-red-500/5 border-red-500/20 hover:bg-red-500/10"
+                            ? "bg-red-500/5 border-red-500/20 hover:bg-red-500/10 cursor-pointer"
                             : "bg-muted/30 hover:bg-muted/50"
                     }`}
                   >
@@ -251,10 +292,25 @@ export function HealthStatusModal({ open, onOpenChange, getApiUrl }: HealthStatu
                           {Object.entries(details).map(([detailKey, detailValue]: [string, any]) => {
                             if (typeof detailValue === "object" && detailValue !== null) {
                               return (
-                                <div key={detailKey} className="text-xs pl-3 border-l-2 border-muted">
-                                  <span className="font-medium">{detailKey}:</span>
-                                  {detailValue.reason && (
-                                    <span className="ml-1 text-muted-foreground">{detailValue.reason}</span>
+                                <div
+                                  key={detailKey}
+                                  className="flex items-start justify-between gap-2 text-xs pl-3 border-l-2 border-muted"
+                                >
+                                  <div>
+                                    <span className="font-medium">{detailKey}:</span>
+                                    {detailValue.reason && (
+                                      <span className="ml-1 text-muted-foreground">{detailValue.reason}</span>
+                                    )}
+                                  </div>
+                                  {status !== "OK" && (
+                                    <Button
+                                      size="sm"
+                                      variant="ghost"
+                                      className="h-5 px-1 hover:bg-red-500/10"
+                                      onClick={(e) => handleAcknowledge(detailKey, e)}
+                                    >
+                                      <X className="h-3 w-3" />
+                                    </Button>
                                   )}
                                 </div>
                               )

AppImage/components/proxmox-dashboard.tsx

@@ -98,10 +98,19 @@ export function ProxmoxDashboard() {
       const uptimeValue =
         data.uptime && typeof data.uptime === "string" && data.uptime.trim() !== "" ? data.uptime : "N/A"
 
-      const healthStatus = data.health?.status || "healthy"
+      const backendStatus = data.health?.status?.toUpperCase() || "OK"
+      let healthStatus: "healthy" | "warning" | "critical"
+
+      if (backendStatus === "CRITICAL") {
+        healthStatus = "critical"
+      } else if (backendStatus === "WARNING") {
+        healthStatus = "warning"
+      } else {
+        healthStatus = "healthy"
+      }
 
       setSystemStatus({
-        status: healthStatus as "healthy" | "warning" | "critical",
+        status: healthStatus,
         uptime: uptimeValue,
         lastUpdate: new Date().toLocaleTimeString("en-US", { hour12: false }),
         serverName: data.hostname || "Unknown",
@@ -127,11 +136,13 @@ export function ProxmoxDashboard() {
     // Siempre fetch inicial
     fetchSystemData()
 
+    // En overview: cada 30 segundos para actualización frecuente del estado de salud
+    // En otras tabs: cada 60 segundos para reducir carga
     let interval: ReturnType<typeof setInterval> | null = null
     if (activeTab === "overview") {
-      interval = setInterval(fetchSystemData, 9000) // Cambiado de 10000 a 9000ms
+      interval = setInterval(fetchSystemData, 30000) // 30 segundos
     } else {
-      interval = setInterval(fetchSystemData, 61000) // Cambiado de 60000 a 61000ms
+      interval = setInterval(fetchSystemData, 60000) // 60 segundos
     }
 
     return () => {
@@ -139,6 +150,20 @@ export function ProxmoxDashboard() {
     }
   }, [fetchSystemData, activeTab])
 
+  useEffect(() => {
+    const handleChangeTab = (event: CustomEvent) => {
+      const { tab } = event.detail
+      if (tab) {
+        setActiveTab(tab)
+      }
+    }
+
+    window.addEventListener("changeTab", handleChangeTab as EventListener)
+    return () => {
+      window.removeEventListener("changeTab", handleChangeTab as EventListener)
+    }
+  }, [])
+
   useEffect(() => {
     if (
       systemStatus.serverName &&

AppImage/scripts/flask_health_routes.py

@@ -1,9 +1,10 @@
 """
-Flask routes for health monitoring
+Flask routes for health monitoring with persistence support
 """
 
-from flask import Blueprint, jsonify
+from flask import Blueprint, jsonify, request
 from health_monitor import health_monitor
+from health_persistence import health_persistence
 
 health_bp = Blueprint('health', __name__)
 
@@ -47,3 +48,22 @@ def get_system_info():
         return jsonify(info)
     except Exception as e:
         return jsonify({'error': str(e)}), 500
+
+@health_bp.route('/api/health/acknowledge/<error_key>', methods=['POST'])
+def acknowledge_error(error_key):
+    """Acknowledge an error manually (user dismissed it)"""
+    try:
+        health_persistence.acknowledge_error(error_key)
+        return jsonify({'success': True, 'message': 'Error acknowledged'})
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500
+
+@health_bp.route('/api/health/active-errors', methods=['GET'])
+def get_active_errors():
+    """Get all active persistent errors"""
+    try:
+        category = request.args.get('category')
+        errors = health_persistence.get_active_errors(category)
+        return jsonify({'errors': errors})
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500

AppImage/scripts/health_monitor.py

@@ -17,10 +17,12 @@ from datetime import datetime, timedelta
 from collections import defaultdict
 import re
 
+from health_persistence import health_persistence
+
 class HealthMonitor:
     """
     Monitors system health across multiple components with minimal impact.
-    Implements hysteresis, intelligent caching, and progressive escalation.
+    Implements hysteresis, intelligent caching, progressive escalation, and persistent error tracking.
     Always returns all 10 health categories.
     """
     
@@ -28,8 +30,8 @@ class HealthMonitor:
     CPU_WARNING = 85
     CPU_CRITICAL = 95
     CPU_RECOVERY = 75
-    CPU_WARNING_DURATION = 60
-    CPU_CRITICAL_DURATION = 120
+    CPU_WARNING_DURATION = 300  # 5 minutes sustained
+    CPU_CRITICAL_DURATION = 300  # 5 minutes sustained
     CPU_RECOVERY_DURATION = 120
     
     # Memory Thresholds
@@ -85,6 +87,11 @@ class HealthMonitor:
         self.io_error_history = defaultdict(list)
         self.failed_vm_history = set()  # Track VMs that failed to start
         
+        try:
+            health_persistence.cleanup_old_errors()
+        except Exception as e:
+            print(f"[HealthMonitor] Cleanup warning: {e}")
+    
     def get_system_info(self) -> Dict[str, Any]:
         """
         Get lightweight system info for header display.
@@ -188,7 +195,11 @@ class HealthMonitor:
         """
         Get comprehensive health status with all checks.
         Returns JSON structure with ALL 10 categories always present.
+        Now includes persistent error tracking.
         """
+        active_errors = health_persistence.get_active_errors()
+        persistent_issues = {err['error_key']: err for err in active_errors}
+        
         details = {
             'cpu': {'status': 'OK'},
             'memory': {'status': 'OK'},
@@ -231,8 +242,8 @@ class HealthMonitor:
             elif disks_status.get('status') == 'WARNING':
                 warning_issues.append(disks_status.get('reason', 'Disk issue'))
         
-        # Priority 4: VMs/CTs - now detects qmp errors from logs
-        vms_status = self._check_vms_cts_optimized()
+        # Priority 4: VMs/CTs - now with persistence
+        vms_status = self._check_vms_cts_with_persistence()
         if vms_status:
             details['vms'] = vms_status
             if vms_status.get('status') == 'CRITICAL':
@@ -265,8 +276,8 @@ class HealthMonitor:
         elif memory_status.get('status') == 'WARNING':
             warning_issues.append(memory_status.get('reason', 'Memory high'))
         
-        # Priority 8: Logs
-        logs_status = self._check_logs_lightweight()
+        # Priority 8: Logs - now with persistence
+        logs_status = self._check_logs_with_persistence()
         details['logs'] = logs_status
         if logs_status.get('status') == 'CRITICAL':
             critical_issues.append(logs_status.get('reason', 'Critical log errors'))
@@ -305,7 +316,7 @@ class HealthMonitor:
         }
     
     def _check_cpu_with_hysteresis(self) -> Dict[str, Any]:
-        """Check CPU with hysteresis to avoid flapping alerts"""
+        """Check CPU with hysteresis to avoid flapping alerts - requires 5min sustained high usage"""
         try:
             cpu_percent = psutil.cpu_percent(interval=1)
             current_time = time.time()
@@ -318,33 +329,33 @@ class HealthMonitor:
             
             self.state_history[state_key] = [
                 entry for entry in self.state_history[state_key]
-                if current_time - entry['time'] < 300
+                if current_time - entry['time'] < 360
             ]
             
-            critical_duration = sum(
-                1 for entry in self.state_history[state_key]
+            critical_samples = [
+                entry for entry in self.state_history[state_key]
                 if entry['value'] >= self.CPU_CRITICAL and
                 current_time - entry['time'] <= self.CPU_CRITICAL_DURATION
-            )
+            ]
             
-            warning_duration = sum(
-                1 for entry in self.state_history[state_key]
+            warning_samples = [
+                entry for entry in self.state_history[state_key]
                 if entry['value'] >= self.CPU_WARNING and
                 current_time - entry['time'] <= self.CPU_WARNING_DURATION
-            )
+            ]
             
-            recovery_duration = sum(
-                1 for entry in self.state_history[state_key]
+            recovery_samples = [
+                entry for entry in self.state_history[state_key]
                 if entry['value'] < self.CPU_RECOVERY and
                 current_time - entry['time'] <= self.CPU_RECOVERY_DURATION
-            )
+            ]
             
-            if critical_duration >= 2:
+            if len(critical_samples) >= 3:
                 status = 'CRITICAL'
-                reason = f'CPU >{self.CPU_CRITICAL}% for {self.CPU_CRITICAL_DURATION}s'
-            elif warning_duration >= 2 and recovery_duration < 2:
+                reason = f'CPU >{self.CPU_CRITICAL}% sustained for {self.CPU_CRITICAL_DURATION}s'
+            elif len(warning_samples) >= 3 and len(recovery_samples) < 2:
                 status = 'WARNING'
-                reason = f'CPU >{self.CPU_WARNING}% for {self.CPU_WARNING_DURATION}s'
+                reason = f'CPU >{self.CPU_WARNING}% sustained for {self.CPU_WARNING_DURATION}s'
             else:
                 status = 'OK'
                 reason = None
@@ -871,15 +882,15 @@ class HealthMonitor:
     
     def _check_vms_cts_optimized(self) -> Dict[str, Any]:
         """
-        Optimized VM/CT check - detects qmp failures and other VM errors.
-        Now parses logs for VM/CT specific errors like qmp command failures.
+        Optimized VM/CT check - detects qmp failures and startup errors from logs.
+        Improved detection of container and VM errors from journalctl.
         """
         try:
             issues = []
             vm_details = {}
             
             result = subprocess.run(
-                ['journalctl', '--since', '10 minutes ago', '--no-pager', '-u', 'pve*', '-p', 'warning'],
+                ['journalctl', '--since', '10 minutes ago', '--no-pager', '-p', 'warning'],
                 capture_output=True,
                 text=True,
                 timeout=3
@@ -903,22 +914,56 @@ class HealthMonitor:
                             }
                         continue
                     
-                    ct_match = re.search(r'(?:ct|container)\s+(\d+)', line_lower)
-                    if ct_match and ('error' in line_lower or 'fail' in line_lower):
-                        ctid = ct_match.group(1)
+                    ct_error_match = re.search(r'(?:ct|container|lxc)\s+(\d+)', line_lower)
+                    if ct_error_match and ('error' in line_lower or 'fail' in line_lower or 'device' in line_lower):
+                        ctid = ct_error_match.group(1)
                         key = f'ct_{ctid}'
                         if key not in vm_details:
-                            issues.append(f'CT {ctid}: Error detected')
+                            if 'device' in line_lower and 'does not exist' in line_lower:
+                                device_match = re.search(r'device\s+([/\w\d]+)\s+does not exist', line_lower)
+                                if device_match:
+                                    reason = f'Device {device_match.group(1)} missing'
+                                else:
+                                    reason = 'Device error'
+                            elif 'failed to start' in line_lower:
+                                reason = 'Failed to start'
+                            else:
+                                reason = 'Container error'
+                            
+                            issues.append(f'CT {ctid}: {reason}')
+                            vm_details[key] = {
+                                'status': 'WARNING' if 'device' in reason.lower() else 'CRITICAL',
+                                'reason': reason,
+                                'id': ctid,
+                                'type': 'CT'
+                            }
+                        continue
+                    
+                    vzstart_match = re.search(r'vzstart:(\d+):', line)
+                    if vzstart_match and ('error' in line_lower or 'fail' in line_lower or 'does not exist' in line_lower):
+                        ctid = vzstart_match.group(1)
+                        key = f'ct_{ctid}'
+                        if key not in vm_details:
+                            # Extraer mensaje de error
+                            if 'device' in line_lower and 'does not exist' in line_lower:
+                                device_match = re.search(r'device\s+([/\w\d]+)\s+does not exist', line_lower)
+                                if device_match:
+                                    reason = f'Device {device_match.group(1)} missing'
+                                else:
+                                    reason = 'Device error'
+                            else:
+                                reason = 'Startup error'
+                            
+                            issues.append(f'CT {ctid}: {reason}')
                             vm_details[key] = {
                                 'status': 'WARNING',
-                                'reason': 'Container error',
+                                'reason': reason,
                                 'id': ctid,
                                 'type': 'CT'
                             }
                         continue
                     
                     if any(keyword in line_lower for keyword in ['failed to start', 'cannot start', 'activation failed', 'start error']):
-                        # Extract VM/CT ID
                         id_match = re.search(r'\b(\d{3,4})\b', line)
                         if id_match:
                             vmid = id_match.group(1)
@@ -946,6 +991,118 @@ class HealthMonitor:
         except Exception:
             return {'status': 'OK'}
     
+    # Modified to use persistence
+    def _check_vms_cts_with_persistence(self) -> Dict[str, Any]:
+        """
+        Check VMs/CTs with persistent error tracking.
+        Errors persist until VM starts or 48h elapsed.
+        """
+        try:
+            issues = []
+            vm_details = {}
+            
+            # Get persistent errors first
+            persistent_errors = health_persistence.get_active_errors('vms')
+            
+            # Check if any persistent VMs/CTs have started
+            for error in persistent_errors:
+                error_key = error['error_key']
+                if error_key.startswith('vm_') or error_key.startswith('ct_'):
+                    vm_id = error_key.split('_')[1]
+                    if health_persistence.check_vm_running(vm_id):
+                        continue  # Error auto-resolved
+                
+                # Still active
+                vm_details[error_key] = {
+                    'status': error['severity'],
+                    'reason': error['reason'],
+                    'id': error.get('details', {}).get('id', 'unknown'),
+                    'type': error.get('details', {}).get('type', 'VM/CT'),
+                    'first_seen': error['first_seen']
+                }
+                issues.append(f"{error.get('details', {}).get('type', 'VM')} {error.get('details', {}).get('id', '')}: {error['reason']}")
+            
+            # Check for new errors in logs
+            result = subprocess.run(
+                ['journalctl', '--since', '10 minutes ago', '--no-pager', '-p', 'warning'],
+                capture_output=True,
+                text=True,
+                timeout=3
+            )
+            
+            if result.returncode == 0:
+                for line in result.stdout.split('\n'):
+                    line_lower = line.lower()
+                    
+                    # VM QMP errors
+                    vm_qmp_match = re.search(r'vm\s+(\d+)\s+qmp\s+command.*(?:failed|unable|timeout)', line_lower)
+                    if vm_qmp_match:
+                        vmid = vm_qmp_match.group(1)
+                        error_key = f'vm_{vmid}'
+                        if error_key not in vm_details:
+                            # Record persistent error
+                            health_persistence.record_error(
+                                error_key=error_key,
+                                category='vms',
+                                severity='WARNING',
+                                reason='QMP command timeout',
+                                details={'id': vmid, 'type': 'VM'}
+                            )
+                            issues.append(f'VM {vmid}: Communication issue')
+                            vm_details[error_key] = {
+                                'status': 'WARNING',
+                                'reason': 'QMP command timeout',
+                                'id': vmid,
+                                'type': 'VM'
+                            }
+                        continue
+                    
+                    # Container errors
+                    vzstart_match = re.search(r'vzstart:(\d+):', line)
+                    if vzstart_match and ('error' in line_lower or 'fail' in line_lower or 'does not exist' in line_lower):
+                        ctid = vzstart_match.group(1)
+                        error_key = f'ct_{ctid}'
+                        
+                        if error_key not in vm_details:
+                            if 'device' in line_lower and 'does not exist' in line_lower:
+                                device_match = re.search(r'device\s+([/\w\d]+)\s+does not exist', line_lower)
+                                if device_match:
+                                    reason = f'Device {device_match.group(1)} missing'
+                                else:
+                                    reason = 'Device error'
+                            else:
+                                reason = 'Startup error'
+                            
+                            # Record persistent error
+                            health_persistence.record_error(
+                                error_key=error_key,
+                                category='vms',
+                                severity='WARNING',
+                                reason=reason,
+                                details={'id': ctid, 'type': 'CT'}
+                            )
+                            issues.append(f'CT {ctid}: {reason}')
+                            vm_details[error_key] = {
+                                'status': 'WARNING',
+                                'reason': reason,
+                                'id': ctid,
+                                'type': 'CT'
+                            }
+            
+            if not issues:
+                return {'status': 'OK'}
+            
+            has_critical = any(d.get('status') == 'CRITICAL' for d in vm_details.values())
+            
+            return {
+                'status': 'CRITICAL' if has_critical else 'WARNING',
+                'reason': '; '.join(issues[:3]),
+                'details': vm_details
+            }
+            
+        except Exception:
+            return {'status': 'OK'}
+    
     def _check_pve_services(self) -> Dict[str, Any]:
         """Check critical Proxmox services"""
         try:
@@ -980,13 +1137,24 @@ class HealthMonitor:
                 'reason': f'Service check failed: {str(e)}'
             }
     
-    def _check_logs_lightweight(self) -> Dict[str, Any]:
-        """Lightweight log analysis (cached, checked every 5 minutes)"""
+    # Modified to use persistence
+    def _check_logs_with_persistence(self) -> Dict[str, Any]:
+        """
+        Check logs with persistent error tracking.
+        Critical log errors persist for 24h unless acknowledged.
+        """
         cache_key = 'logs_analysis'
         current_time = time.time()
         
         if cache_key in self.last_check_times:
             if current_time - self.last_check_times[cache_key] < self.LOG_CHECK_INTERVAL:
+                # Return persistent errors if any
+                persistent_errors = health_persistence.get_active_errors('logs')
+                if persistent_errors:
+                    return {
+                        'status': 'WARNING',
+                        'reason': f'{len(persistent_errors)} persistent log issues'
+                    }
                 return self.cached_results.get(cache_key, {'status': 'OK'})
         
         try:
@@ -1011,6 +1179,16 @@ class HealthMonitor:
                         if keyword.lower() in line_lower:
                             critical_keywords_found.append(keyword)
                             errors_5m += 1
+                            
+                            # Record persistent error for critical keywords
+                            error_key = f'log_critical_{keyword.replace(" ", "_")}'
+                            health_persistence.record_error(
+                                error_key=error_key,
+                                category='logs',
+                                severity='CRITICAL',
+                                reason=f'Critical log: {keyword}',
+                                details={'keyword': keyword}
+                            )
                             break
                     else:
                         if 'error' in line_lower or 'critical' in line_lower or 'fatal' in line_lower:

AppImage/scripts/health_persistence.py

@@ -0,0 +1,326 @@
+"""
+Health Monitor Persistence Module
+Manages persistent error tracking across AppImage updates using SQLite.
+Stores errors in /root/.config/proxmenux-monitor/health_monitor.db
+
+Features:
+- Persistent error storage (survives AppImage updates)
+- Smart error resolution (auto-clear when VM starts, or after 48h)
+- Event system for future Telegram notifications
+- Manual acknowledgment support
+
+Author: MacRimi
+Version: 1.0
+"""
+
+import sqlite3
+import json
+import os
+from datetime import datetime, timedelta
+from typing import Dict, List, Any, Optional
+from pathlib import Path
+
+class HealthPersistence:
+    """Manages persistent health error tracking"""
+    
+    # Error retention periods (seconds)
+    VM_ERROR_RETENTION = 48 * 3600  # 48 hours
+    LOG_ERROR_RETENTION = 24 * 3600  # 24 hours
+    DISK_ERROR_RETENTION = 48 * 3600  # 48 hours
+    
+    def __init__(self):
+        """Initialize persistence with database in config directory"""
+        self.data_dir = Path('/root/.config/proxmenux-monitor')
+        self.data_dir.mkdir(parents=True, exist_ok=True)
+        
+        self.db_path = self.data_dir / 'health_monitor.db'
+        self._init_database()
+    
+    def _init_database(self):
+        """Initialize SQLite database with required tables"""
+        conn = sqlite3.connect(str(self.db_path))
+        cursor = conn.cursor()
+        
+        # Errors table
+        cursor.execute('''
+            CREATE TABLE IF NOT EXISTS errors (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                error_key TEXT UNIQUE NOT NULL,
+                category TEXT NOT NULL,
+                severity TEXT NOT NULL,
+                reason TEXT NOT NULL,
+                details TEXT,
+                first_seen TEXT NOT NULL,
+                last_seen TEXT NOT NULL,
+                resolved_at TEXT,
+                acknowledged INTEGER DEFAULT 0,
+                notification_sent INTEGER DEFAULT 0
+            )
+        ''')
+        
+        # Events table (for future Telegram notifications)
+        cursor.execute('''
+            CREATE TABLE IF NOT EXISTS events (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                event_type TEXT NOT NULL,
+                error_key TEXT NOT NULL,
+                timestamp TEXT NOT NULL,
+                data TEXT
+            )
+        ''')
+        
+        # Indexes for performance
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_error_key ON errors(error_key)')
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_category ON errors(category)')
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_resolved ON errors(resolved_at)')
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_events_error ON events(error_key)')
+        
+        conn.commit()
+        conn.close()
+    
+    def record_error(self, error_key: str, category: str, severity: str, 
+                    reason: str, details: Optional[Dict] = None) -> Dict[str, Any]:
+        """
+        Record or update an error.
+        Returns event info (new_error, updated, etc.)
+        """
+        conn = sqlite3.connect(str(self.db_path))
+        cursor = conn.cursor()
+        
+        now = datetime.now().isoformat()
+        details_json = json.dumps(details) if details else None
+        
+        # Check if error exists
+        cursor.execute('SELECT id, first_seen, notification_sent FROM errors WHERE error_key = ?', 
+                      (error_key,))
+        existing = cursor.fetchone()
+        
+        event_info = {'type': 'updated', 'needs_notification': False}
+        
+        if existing:
+            # Update existing error
+            cursor.execute('''
+                UPDATE errors 
+                SET last_seen = ?, severity = ?, reason = ?, details = ?, resolved_at = NULL
+                WHERE error_key = ?
+            ''', (now, severity, reason, details_json, error_key))
+            
+            # Check if severity escalated
+            cursor.execute('SELECT severity FROM errors WHERE error_key = ?', (error_key,))
+            old_severity = cursor.fetchone()[0]
+            if old_severity == 'WARNING' and severity == 'CRITICAL':
+                event_info['type'] = 'escalated'
+                event_info['needs_notification'] = True
+        else:
+            # Insert new error
+            cursor.execute('''
+                INSERT INTO errors 
+                (error_key, category, severity, reason, details, first_seen, last_seen)
+                VALUES (?, ?, ?, ?, ?, ?, ?)
+            ''', (error_key, category, severity, reason, details_json, now, now))
+            
+            event_info['type'] = 'new'
+            event_info['needs_notification'] = True
+        
+        # Record event
+        self._record_event(cursor, event_info['type'], error_key, 
+                          {'severity': severity, 'reason': reason})
+        
+        conn.commit()
+        conn.close()
+        
+        return event_info
+    
+    def resolve_error(self, error_key: str, reason: str = 'auto-resolved'):
+        """Mark an error as resolved"""
+        conn = sqlite3.connect(str(self.db_path))
+        cursor = conn.cursor()
+        
+        now = datetime.now().isoformat()
+        
+        cursor.execute('''
+            UPDATE errors 
+            SET resolved_at = ?
+            WHERE error_key = ? AND resolved_at IS NULL
+        ''', (now, error_key))
+        
+        if cursor.rowcount > 0:
+            self._record_event(cursor, 'resolved', error_key, {'reason': reason})
+        
+        conn.commit()
+        conn.close()
+    
+    def acknowledge_error(self, error_key: str):
+        """Manually acknowledge an error (won't notify again)"""
+        conn = sqlite3.connect(str(self.db_path))
+        cursor = conn.cursor()
+        
+        cursor.execute('''
+            UPDATE errors 
+            SET acknowledged = 1
+            WHERE error_key = ?
+        ''', (error_key,))
+        
+        self._record_event(cursor, 'acknowledged', error_key, {})
+        
+        conn.commit()
+        conn.close()
+    
+    def get_active_errors(self, category: Optional[str] = None) -> List[Dict[str, Any]]:
+        """Get all active (unresolved) errors, optionally filtered by category"""
+        conn = sqlite3.connect(str(self.db_path))
+        conn.row_factory = sqlite3.Row
+        cursor = conn.cursor()
+        
+        if category:
+            cursor.execute('''
+                SELECT * FROM errors 
+                WHERE resolved_at IS NULL AND category = ?
+                ORDER BY severity DESC, last_seen DESC
+            ''', (category,))
+        else:
+            cursor.execute('''
+                SELECT * FROM errors 
+                WHERE resolved_at IS NULL
+                ORDER BY severity DESC, last_seen DESC
+            ''')
+        
+        rows = cursor.fetchall()
+        conn.close()
+        
+        errors = []
+        for row in rows:
+            error_dict = dict(row)
+            if error_dict.get('details'):
+                error_dict['details'] = json.loads(error_dict['details'])
+            errors.append(error_dict)
+        
+        return errors
+    
+    def cleanup_old_errors(self):
+        """Clean up old resolved errors and auto-resolve stale errors"""
+        conn = sqlite3.connect(str(self.db_path))
+        cursor = conn.cursor()
+        
+        now = datetime.now()
+        
+        # Delete resolved errors older than 7 days
+        cutoff_resolved = (now - timedelta(days=7)).isoformat()
+        cursor.execute('DELETE FROM errors WHERE resolved_at < ?', (cutoff_resolved,))
+        
+        # Auto-resolve VM/CT errors older than 48h
+        cutoff_vm = (now - timedelta(seconds=self.VM_ERROR_RETENTION)).isoformat()
+        cursor.execute('''
+            UPDATE errors 
+            SET resolved_at = ?
+            WHERE category = 'vms' 
+              AND resolved_at IS NULL 
+              AND first_seen < ?
+              AND acknowledged = 0
+        ''', (now.isoformat(), cutoff_vm))
+        
+        # Auto-resolve log errors older than 24h
+        cutoff_logs = (now - timedelta(seconds=self.LOG_ERROR_RETENTION)).isoformat()
+        cursor.execute('''
+            UPDATE errors 
+            SET resolved_at = ?
+            WHERE category = 'logs' 
+              AND resolved_at IS NULL 
+              AND first_seen < ?
+              AND acknowledged = 0
+        ''', (now.isoformat(), cutoff_logs))
+        
+        # Delete old events (>30 days)
+        cutoff_events = (now - timedelta(days=30)).isoformat()
+        cursor.execute('DELETE FROM events WHERE timestamp < ?', (cutoff_events,))
+        
+        conn.commit()
+        conn.close()
+    
+    def check_vm_running(self, vm_id: str) -> bool:
+        """
+        Check if a VM/CT is running and resolve error if so.
+        Returns True if running and error was resolved.
+        """
+        import subprocess
+        
+        try:
+            # Check qm status for VMs
+            result = subprocess.run(
+                ['qm', 'status', vm_id],
+                capture_output=True,
+                text=True,
+                timeout=2
+            )
+            
+            if result.returncode == 0 and 'running' in result.stdout.lower():
+                self.resolve_error(f'vm_{vm_id}', 'VM started')
+                return True
+            
+            # Check pct status for containers
+            result = subprocess.run(
+                ['pct', 'status', vm_id],
+                capture_output=True,
+                text=True,
+                timeout=2
+            )
+            
+            if result.returncode == 0 and 'running' in result.stdout.lower():
+                self.resolve_error(f'ct_{vm_id}', 'Container started')
+                return True
+            
+            return False
+            
+        except Exception:
+            return False
+    
+    def _record_event(self, cursor, event_type: str, error_key: str, data: Dict):
+        """Internal: Record an event"""
+        cursor.execute('''
+            INSERT INTO events (event_type, error_key, timestamp, data)
+            VALUES (?, ?, ?, ?)
+        ''', (event_type, error_key, datetime.now().isoformat(), json.dumps(data)))
+    
+    def get_unnotified_errors(self) -> List[Dict[str, Any]]:
+        """Get errors that need Telegram notification"""
+        conn = sqlite3.connect(str(self.db_path))
+        conn.row_factory = sqlite3.Row
+        cursor = conn.cursor()
+        
+        cursor.execute('''
+            SELECT * FROM errors 
+            WHERE notification_sent = 0 
+              AND resolved_at IS NULL 
+              AND acknowledged = 0
+            ORDER BY severity DESC, first_seen ASC
+        ''')
+        
+        rows = cursor.fetchall()
+        conn.close()
+        
+        errors = []
+        for row in rows:
+            error_dict = dict(row)
+            if error_dict.get('details'):
+                error_dict['details'] = json.loads(error_dict['details'])
+            errors.append(error_dict)
+        
+        return errors
+    
+    def mark_notified(self, error_key: str):
+        """Mark error as notified"""
+        conn = sqlite3.connect(str(self.db_path))
+        cursor = conn.cursor()
+        
+        cursor.execute('''
+            UPDATE errors 
+            SET notification_sent = 1
+            WHERE error_key = ?
+        ''', (error_key,))
+        
+        conn.commit()
+        conn.close()
+
+
+# Global instance
+health_persistence = HealthPersistence()