Database optimize scripts

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2025-08-26 21:00:23 -04:00
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# quick_fix_tables.py
"""
Quick Fix for Missing Maintenance Tables
======================================
Run this script to quickly create the missing tables that are causing the cleanup error.
"""
import sys
import os
from sqlalchemy import text
# Add current directory to path
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
from app import app, db, logger_handler
def quick_create_missing_tables():
"""Quickly create the missing tables for maintenance system"""
print("🔧 Quick Fix: Creating Missing Maintenance Tables")
print("=" * 55)
with app.app_context():
try:
# Create attendance_audit table
print("📋 Creating attendance_audit table...")
audit_sql = """
CREATE TABLE IF NOT EXISTS attendance_audit (
audit_id INT AUTO_INCREMENT PRIMARY KEY,
record_id INT NOT NULL,
action_type ENUM('INSERT', 'UPDATE', 'DELETE') NOT NULL,
old_values JSON,
new_values JSON,
changed_by VARCHAR(100),
change_timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
ip_address VARCHAR(45),
INDEX idx_audit_timestamp (change_timestamp DESC),
INDEX idx_audit_record (record_id)
) ENGINE=InnoDB
"""
db.session.execute(text(audit_sql))
print(" ✅ attendance_audit table created")
# Create attendance_statistics_cache table
print("📋 Creating attendance_statistics_cache table...")
cache_sql = """
CREATE TABLE IF NOT EXISTS attendance_statistics_cache (
cache_key VARCHAR(255) PRIMARY KEY,
cache_data JSON NOT NULL,
last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
expires_at TIMESTAMP,
INDEX idx_cache_expires (expires_at),
INDEX idx_cache_updated (last_updated DESC)
) ENGINE=InnoDB
"""
db.session.execute(text(cache_sql))
print(" ✅ attendance_statistics_cache table created")
# Commit the changes
db.session.commit()
print("\n✅ SUCCESS: Missing tables created successfully!")
print("\n🧪 Testing the tables...")
# Test the tables
test_queries = [
"SELECT COUNT(*) FROM attendance_audit",
"SELECT COUNT(*) FROM attendance_statistics_cache"
]
for query in test_queries:
try:
result = db.session.execute(text(query)).fetchone()
table_name = query.split("FROM ")[1]
print(f"{table_name}: OK (rows: {result[0]})")
except Exception as e:
print(f" ❌ Test failed: {e}")
print(f"\n🎉 QUICK FIX COMPLETED!")
print("\nNow you can run:")
print(" python maintenance_cli.py cleanup")
print(" python maintenance_cli.py health-check")
return True
except Exception as e:
print(f"❌ Error creating tables: {e}")
db.session.rollback()
return False
if __name__ == "__main__":
quick_create_missing_tables()
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#!/usr/bin/env python3
"""
Simple Health Check - Windows Compatible
=======================================
"""
import sys
import os
from datetime import datetime
from sqlalchemy import text
# Add current directory to path
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
def health_check():
"""Run database health check"""
try:
from app import app, db, logger_handler
print("Database Health Check - Windows Compatible")
print("=" * 50)
with app.app_context():
health_status = {
'overall': 'healthy',
'issues': [],
'warnings': [],
'recommendations': []
}
# Check database connectivity
try:
result = db.session.execute(text("SELECT 1 as test")).fetchone()
if result and result.test == 1:
print("[OK] Database connectivity: WORKING")
else:
print("[ERROR] Database connectivity: FAILED - Unexpected result")
health_status['issues'].append("Database connectivity test failed")
except Exception as e:
print(f"[ERROR] Database connectivity: FAILED - {e}")
health_status['overall'] = 'critical'
health_status['issues'].append(f"Database connectivity failed: {e}")
# Check critical tables exist
critical_tables = ['attendance_data', 'qr_codes', 'users', 'projects', 'log_events']
existing_tables = []
print("\nTable Status:")
for table in critical_tables:
try:
# Use SHOW TABLES for better MySQL compatibility
table_check = db.session.execute(text(f"SHOW TABLES LIKE '{table}'")).fetchone()
if table_check:
# Get row count
count_result = db.session.execute(text(f"SELECT COUNT(*) FROM {table}")).fetchone()
row_count = count_result[0] if count_result else 0
print(f"[OK] {table}: EXISTS ({row_count:,} rows)")
existing_tables.append(table)
else:
print(f"[MISSING] {table}: NOT FOUND")
health_status['issues'].append(f"Critical table {table} is missing")
except Exception as e:
print(f"[ERROR] {table}: ERROR - {e}")
health_status['issues'].append(f"Could not check table {table}: {e}")
# Check maintenance tables
maintenance_tables = ['attendance_audit', 'attendance_statistics_cache']
print("\nMaintenance Tables:")
for table in maintenance_tables:
try:
table_check = db.session.execute(text(f"SHOW TABLES LIKE '{table}'")).fetchone()
if table_check:
count_result = db.session.execute(text(f"SELECT COUNT(*) FROM {table}")).fetchone()
row_count = count_result[0] if count_result else 0
print(f"[OK] {table}: EXISTS ({row_count:,} rows)")
else:
print(f"[MISSING] {table}: NOT FOUND")
health_status['warnings'].append(f"Maintenance table {table} is missing")
except Exception as e:
print(f"[ERROR] {table}: ERROR - {e}")
# Check for indexes on existing tables
print("\nIndex Analysis:")
missing_indexes = 0
for table in existing_tables:
try:
# Check if table has performance indexes
index_check = db.session.execute(text(f"""
SELECT COUNT(*) as index_count
FROM INFORMATION_SCHEMA.STATISTICS
WHERE TABLE_SCHEMA = DATABASE()
AND TABLE_NAME = '{table}'
AND INDEX_NAME != 'PRIMARY'
""")).fetchone()
index_count = index_check.index_count if index_check else 0
if index_count == 0:
print(f"[WARNING] {table}: No performance indexes")
missing_indexes += 1
else:
print(f"[OK] {table}: {index_count} indexes")
except Exception as e:
print(f"[ERROR] {table} indexes: {e}")
if missing_indexes > 0:
health_status['warnings'].append(f"{missing_indexes} tables have no performance indexes")
health_status['recommendations'].append("Add performance indexes")
# Check triggers
print("\nTrigger Status:")
try:
trigger_count_query = """
SELECT COUNT(*) as trigger_count
FROM INFORMATION_SCHEMA.TRIGGERS
WHERE TRIGGER_SCHEMA = DATABASE()
"""
trigger_result = db.session.execute(text(trigger_count_query)).fetchone()
trigger_count = trigger_result.trigger_count if trigger_result else 0
if trigger_count > 0:
print(f"[OK] Database triggers: {trigger_count} found")
else:
print("[WARNING] Database triggers: None found")
health_status['warnings'].append("No database triggers found")
health_status['recommendations'].append("Consider adding audit triggers")
except Exception as e:
print(f"[ERROR] Trigger check failed: {e}")
health_status['warnings'].append("Trigger check failed")
# Determine overall health
if len(health_status['issues']) > 0:
health_status['overall'] = 'critical'
elif len(health_status['warnings']) > 3:
health_status['overall'] = 'warning'
# Print summary
print(f"\n{'='*50}")
print(f"OVERALL HEALTH: {health_status['overall'].upper()}")
print(f"{'='*50}")
# Report issues
if health_status['issues']:
print("\nCRITICAL ISSUES:")
for i, issue in enumerate(health_status['issues'], 1):
print(f"{i}. {issue}")
if health_status['warnings']:
print("\nWARNINGS:")
for i, warning in enumerate(health_status['warnings'], 1):
print(f"{i}. {warning}")
if health_status['recommendations']:
print("\nRECOMMENDATIONS:")
for i, rec in enumerate(health_status['recommendations'], 1):
print(f"{i}. {rec}")
# Provide actionable next steps
print("\nNEXT STEPS:")
if health_status['overall'] == 'critical':
print("1. Address critical issues above")
print("2. Verify database connection and table creation")
print("3. Check Flask app initialization")
elif health_status['overall'] == 'warning':
print("1. Add performance indexes: python simple_maintenance.py add-indexes")
print("2. Set up audit triggers for data tracking")
print("3. Run regular maintenance")
else:
print("1. System is healthy!")
print("2. Run regular maintenance: python simple_maintenance.py cleanup")
print("3. Monitor performance metrics")
return health_status
except ImportError as e:
print(f"[ERROR] Could not import Flask app: {e}")
print("Make sure you're running this from your Flask app directory")
return {'overall': 'critical', 'issues': [f"Import error: {e}"]}
except Exception as e:
print(f"[ERROR] Health check failed: {e}")
return {'overall': 'critical', 'issues': [f"Health check error: {e}"]}
if __name__ == "__main__":
health_check()
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# fixed_simple_maintenance.py
"""
Fixed Simple Maintenance Script
==============================
Fixes SQL parameter binding issues and datetime deprecation warnings.
"""
import sys
import os
from datetime import datetime, timedelta, timezone
from sqlalchemy import text
# Add current directory to path
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
def cleanup_data(dry_run=False):
"""Clean up old data from maintenance tables - FIXED VERSION"""
try:
from app import app, db
print("Data Cleanup - Fixed Version")
print("=" * 35)
with app.app_context():
# Define cleanup operations
# (table_name, date_column, retention_days, description)
tables_to_clean = [
('attendance_audit', 'change_timestamp', 90, 'Audit trail records'),
('attendance_statistics_cache', 'expires_at', 1, 'Expired cache entries'),
('log_events', 'created_timestamp', 180, 'Old system logs')
]
total_records_to_clean = 0
total_records_cleaned = 0
print(f"Retention policy:")
for table, col, days, desc in tables_to_clean:
print(f" - {desc}: {days} days")
print("\nAnalyzing tables...\n")
for table_name, date_column, retention_days, description in tables_to_clean:
try:
# Check if table exists
table_check = db.session.execute(text(f"SHOW TABLES LIKE '{table_name}'")).fetchone()
if not table_check:
print(f"[SKIP] {table_name}: Table doesn't exist")
continue
# Calculate cutoff date (using timezone-aware datetime)
cutoff_date = datetime.now(timezone.utc) - timedelta(days=retention_days)
cutoff_str = cutoff_date.strftime('%Y-%m-%d %H:%M:%S')
# Count total records in table
total_count_query = f"SELECT COUNT(*) as total FROM {table_name}"
total_result = db.session.execute(text(total_count_query)).fetchone()
total_records = total_result.total if total_result else 0
# Count records to clean - Fixed SQL syntax
count_query = f"""
SELECT COUNT(*) as count
FROM {table_name}
WHERE {date_column} < :cutoff_date
"""
count_result = db.session.execute(
text(count_query),
{'cutoff_date': cutoff_str}
).fetchone()
records_to_clean = count_result.count if count_result else 0
records_to_keep = total_records - records_to_clean
if records_to_clean > 0:
print(f"[{table_name}]")
print(f" Total records: {total_records:,}")
print(f" Records to clean: {records_to_clean:,}")
print(f" Records to keep: {records_to_keep:,}")
print(f" Cutoff date: {cutoff_str}")
if dry_run:
print(f" [DRY RUN] Would delete {records_to_clean:,} records")
else:
# Perform cleanup - Fixed SQL syntax
delete_query = f"""
DELETE FROM {table_name}
WHERE {date_column} < :cutoff_date
"""
result = db.session.execute(
text(delete_query),
{'cutoff_date': cutoff_str}
)
actual_deleted = result.rowcount
print(f" [CLEANED] Deleted {actual_deleted:,} records")
total_records_cleaned += actual_deleted
total_records_to_clean += records_to_clean
print() # Empty line for readability
else:
print(f"[{table_name}]")
print(f" Total records: {total_records:,}")
print(f" No old records to clean (all newer than {retention_days} days)")
print()
except Exception as e:
print(f"[ERROR] Error processing {table_name}: {e}")
print(f" Error type: {type(e).__name__}")
print()
# Summary
print("=" * 35)
if dry_run:
if total_records_to_clean > 0:
print(f"[DRY RUN SUMMARY]")
print(f"Would clean {total_records_to_clean:,} total records")
print(f"No changes made to database")
else:
print(f"[DRY RUN SUMMARY]")
print(f"No records need cleaning")
else:
if total_records_cleaned > 0:
# Commit changes
db.session.commit()
print(f"[CLEANUP COMPLETED]")
print(f"Successfully cleaned {total_records_cleaned:,} total records")
else:
print(f"[NO CLEANUP NEEDED]")
print(f"All records are within retention policy")
except Exception as e:
print(f"[ERROR] Cleanup failed: {e}")
print(f"Error type: {type(e).__name__}")
try:
db.session.rollback()
print("Database changes rolled back")
except:
pass
def add_performance_indexes():
"""Add basic performance indexes - FIXED VERSION"""
try:
from app import app, db
print("Adding Performance Indexes - Fixed Version")
print("=" * 45)
with app.app_context():
# Define critical indexes with better error handling
indexes_to_create = [
{
'name': 'idx_attendance_date_employee',
'table': 'attendance_data',
'columns': 'check_in_date DESC, employee_id',
'purpose': 'Optimize attendance queries by date and employee'
},
{
'name': 'idx_attendance_qr_date',
'table': 'attendance_data',
'columns': 'qr_code_id, check_in_date DESC',
'purpose': 'Optimize queries by QR code and date'
},
{
'name': 'idx_attendance_location_date',
'table': 'attendance_data',
'columns': 'location_name, check_in_date DESC',
'purpose': 'Optimize queries by location'
},
{
'name': 'idx_qrcode_project_active',
'table': 'qr_codes',
'columns': 'project_id, active_status',
'purpose': 'Optimize project-based QR code queries'
},
{
'name': 'idx_users_username_active',
'table': 'users',
'columns': 'username, active_status',
'purpose': 'Optimize user authentication'
},
{
'name': 'idx_log_events_timestamp_category',
'table': 'log_events',
'columns': 'created_timestamp DESC, event_category',
'purpose': 'Optimize log queries and filtering'
}
]
indexes_created = 0
indexes_skipped = 0
indexes_failed = 0
for index_def in indexes_to_create:
print(f"\nProcessing {index_def['name']}...")
try:
# Check if table exists first
table_check = db.session.execute(
text(f"SHOW TABLES LIKE :table_name"),
{'table_name': index_def['table']}
).fetchone()
if not table_check:
print(f" [SKIP] Table {index_def['table']} doesn't exist")
indexes_skipped += 1
continue
# Check if index already exists
index_check = db.session.execute(text("""
SELECT COUNT(*) as count
FROM INFORMATION_SCHEMA.STATISTICS
WHERE TABLE_SCHEMA = DATABASE()
AND TABLE_NAME = :table_name
AND INDEX_NAME = :index_name
"""), {
'table_name': index_def['table'],
'index_name': index_def['name']
}).fetchone()
if index_check and index_check.count > 0:
print(f" [EXISTS] Index already exists")
indexes_skipped += 1
continue
# Create the index
create_sql = f"""
CREATE INDEX {index_def['name']}
ON {index_def['table']} ({index_def['columns']})
"""
db.session.execute(text(create_sql))
print(f" [CREATED] Successfully created index")
print(f" Purpose: {index_def['purpose']}")
indexes_created += 1
except Exception as e:
error_msg = str(e).lower()
if 'duplicate' in error_msg or 'already exists' in error_msg:
print(f" [EXISTS] Index already exists (detected in error)")
indexes_skipped += 1
else:
print(f" [ERROR] Failed to create index: {e}")
indexes_failed += 1
# Commit changes if any indexes were created
if indexes_created > 0:
db.session.commit()
# Summary
print(f"\n{'=' * 45}")
print(f"INDEX CREATION SUMMARY")
print(f"{'=' * 45}")
print(f"Created: {indexes_created}")
print(f"Skipped (already exist): {indexes_skipped}")
print(f"Failed: {indexes_failed}")
print(f"Total processed: {len(indexes_to_create)}")
if indexes_created > 0:
print(f"\n[SUCCESS] Created {indexes_created} new performance indexes")
print("These indexes will improve query performance for:")
print("- Attendance filtering by date/employee/location")
print("- User authentication")
print("- QR code project queries")
print("- Log event filtering")
elif indexes_skipped == len(indexes_to_create):
print(f"\n[INFO] All indexes already exist - no action needed")
else:
print(f"\n[WARNING] Some indexes could not be created")
except Exception as e:
print(f"[ERROR] Index creation failed: {e}")
try:
db.session.rollback()
except:
pass
def show_table_info():
"""Show detailed information about database tables"""
try:
from app import app, db
print("Database Table Information - Detailed")
print("=" * 45)
with app.app_context():
# Get all tables
tables_result = db.session.execute(text("SHOW TABLES")).fetchall()
table_names = [row[0] for row in tables_result]
print(f"Database: {db.engine.url.database}")
print(f"Total tables: {len(table_names)}\n")
# Header for table info
print(f"{'Table Name':<25} {'Rows':<10} {'Size (MB)':<10} {'Indexes':<8} {'Type'}")
print("-" * 70)
total_size = 0
total_rows = 0
for table in sorted(table_names):
try:
# Get row count
count_result = db.session.execute(text(f"SELECT COUNT(*) FROM {table}")).fetchone()
row_count = count_result[0] if count_result else 0
# Get table size and type
info_query = f"""
SELECT
ROUND(((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024), 2) as size_mb,
ENGINE as engine_type
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '{table}'
"""
info_result = db.session.execute(text(info_query)).fetchone()
size_mb = info_result.size_mb if info_result and info_result.size_mb else 0
engine_type = info_result.engine_type if info_result else 'Unknown'
# Get index count
index_query = f"""
SELECT COUNT(*) as index_count
FROM INFORMATION_SCHEMA.STATISTICS
WHERE TABLE_SCHEMA = DATABASE()
AND TABLE_NAME = '{table}'
AND INDEX_NAME != 'PRIMARY'
"""
index_result = db.session.execute(text(index_query)).fetchone()
index_count = index_result.index_count if index_result else 0
# Determine table category
table_type = "System"
if table in ['attendance_data', 'qr_codes', 'users', 'projects']:
table_type = "Core"
elif table in ['attendance_audit', 'attendance_statistics_cache', 'log_events']:
table_type = "Maintenance"
elif table in ['customers', 'tenant_configs']:
table_type = "Config"
print(f"{table:<25} {row_count:<10,} {size_mb:<10.1f} {index_count:<8} {table_type}")
total_size += size_mb
total_rows += row_count
except Exception as e:
print(f"{table:<25} {'ERROR':<10} {'N/A':<10} {'N/A':<8} - {str(e)[:20]}")
# Summary
print("-" * 70)
print(f"{'TOTALS':<25} {total_rows:<10,} {total_size:<10.1f}")
# Additional insights
print(f"\nTable Categories:")
core_tables = [t for t in table_names if t in ['attendance_data', 'qr_codes', 'users', 'projects']]
maintenance_tables = [t for t in table_names if t in ['attendance_audit', 'attendance_statistics_cache', 'log_events']]
print(f" Core tables: {len(core_tables)} ({', '.join(core_tables)})")
print(f" Maintenance tables: {len(maintenance_tables)} ({', '.join(maintenance_tables)})")
print(f" Other tables: {len(table_names) - len(core_tables) - len(maintenance_tables)}")
except Exception as e:
print(f"[ERROR] Failed to get table info: {e}")
def analyze_performance():
"""Analyze database performance and suggest optimizations"""
try:
from app import app, db
print("Database Performance Analysis")
print("=" * 35)
with app.app_context():
# Check for tables without indexes
tables_to_check = ['attendance_data', 'qr_codes', 'users', 'log_events']
print("Index Coverage Analysis:")
print("-" * 25)
tables_needing_indexes = []
for table in tables_to_check:
try:
# Check if table exists
table_check = db.session.execute(
text(f"SHOW TABLES LIKE :table_name"),
{'table_name': table}
).fetchone()
if not table_check:
continue
# Count non-primary indexes
index_query = f"""
SELECT COUNT(*) as index_count
FROM INFORMATION_SCHEMA.STATISTICS
WHERE TABLE_SCHEMA = DATABASE()
AND TABLE_NAME = '{table}'
AND INDEX_NAME != 'PRIMARY'
"""
index_result = db.session.execute(text(index_query)).fetchone()
index_count = index_result.index_count if index_result else 0
# Get table size for impact assessment
size_query = f"""
SELECT
TABLE_ROWS,
ROUND(((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024), 2) as size_mb
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '{table}'
"""
size_result = db.session.execute(text(size_query)).fetchone()
row_count = size_result.TABLE_ROWS if size_result else 0
size_mb = size_result.size_mb if size_result and size_result.size_mb else 0
status = "GOOD" if index_count > 0 else "NEEDS INDEXES"
priority = "HIGH" if row_count > 1000 and index_count == 0 else "MEDIUM"
print(f"{table:<20} {index_count:<3} indexes {row_count:<8,} rows {status}")
if index_count == 0 and row_count > 100:
tables_needing_indexes.append({
'table': table,
'rows': row_count,
'size_mb': size_mb,
'priority': priority
})
except Exception as e:
print(f"{table:<20} ERROR - {e}")
# Recommendations
if tables_needing_indexes:
print(f"\nPerformance Recommendations:")
print("-" * 28)
for table_info in sorted(tables_needing_indexes, key=lambda x: x['rows'], reverse=True):
print(f"{table_info['table']}: Add performance indexes")
print(f" Rows: {table_info['rows']:,}, Priority: {table_info['priority']}")
print(f"\nTo add indexes: python fixed_simple_maintenance.py add-indexes")
else:
print(f"\n[GOOD] All major tables have performance indexes")
# Check for large tables that might need optimization
print(f"\nLarge Table Analysis:")
print("-" * 22)
large_tables_query = """
SELECT
TABLE_NAME,
TABLE_ROWS,
ROUND(((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024), 2) as size_mb
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = DATABASE()
AND TABLE_ROWS > 1000
ORDER BY TABLE_ROWS DESC
"""
large_tables = db.session.execute(text(large_tables_query)).fetchall()
if large_tables:
for table in large_tables:
print(f"{table.TABLE_NAME:<20} {table.TABLE_ROWS:<8,} rows {table.size_mb:<6.1f} MB")
if any(table.TABLE_ROWS > 10000 for table in large_tables):
print(f"\nTip: Consider regular cleanup for tables with >10k rows")
else:
print("No large tables found (all have <1000 rows)")
except Exception as e:
print(f"[ERROR] Performance analysis failed: {e}")
def main():
"""Main function with enhanced commands"""
if len(sys.argv) < 2:
print("Fixed Simple Maintenance Script")
print("=" * 35)
print("Available commands:")
print(" cleanup [--dry-run] - Clean up old data")
print(" add-indexes - Add performance indexes")
print(" table-info - Show detailed table information")
print(" analyze-performance - Analyze database performance")
print(" health-check - Run health check")
print("")
print("Examples:")
print(" python fixed_simple_maintenance.py cleanup --dry-run")
print(" python fixed_simple_maintenance.py add-indexes")
print(" python fixed_simple_maintenance.py table-info")
return
command = sys.argv[1].lower()
try:
if command == 'cleanup':
dry_run = '--dry-run' in sys.argv
cleanup_data(dry_run=dry_run)
elif command == 'add-indexes':
add_performance_indexes()
elif command == 'table-info':
show_table_info()
elif command == 'analyze-performance':
analyze_performance()
elif command == 'health-check':
# Run health check from the other script
try:
from simple_health_check import health_check
health_check()
except ImportError:
print("[ERROR] simple_health_check.py not found")
print("Run: python windows_compatible_fix.py first")
else:
print(f"Unknown command: {command}")
print("Use: cleanup, add-indexes, table-info, analyze-performance, or health-check")
except KeyboardInterrupt:
print("\n[CANCELLED] Operation cancelled by user")
except Exception as e:
print(f"[ERROR] Command failed: {e}")
if __name__ == "__main__":
main()