在秒杀系统中redis的数据和mysql不一致了，要怎么检查出来了(概述)

# Python代码示例 - 定期巡检
import redis
import MySQLdb
import schedule
import time

def check_inventory_consistency():
    redis_client = redis.StrictRedis(host='localhost', port=6379, db=0)
    mysql_conn = MySQLdb.connect(host='localhost', user='user', password='password', db='ecommerce')
    cursor = mysql_conn.cursor()

    # 获取商品ID列表
    cursor.execute('SELECT id FROM products')
    product_ids = [result[0] for result in cursor.fetchall()]

    for product_id in product_ids:
        # 从Redis中获取缓存库存
        redis_stock = int(redis_client.get(f'product:{product_id}:stock') or 0)

        # 从MySQL中获取实际库存
        cursor.execute(f'SELECT stock FROM products WHERE id={product_id}')
        mysql_stock = cursor.fetchone()[0]

        # 检测库存一致性
        if redis_stock != mysql_stock:
            print(f"Inventory inconsistency detected for product {product_id}. Redis: {redis_stock}, MySQL: {mysql_stock}")

    cursor.close()
    mysql_conn.close()

# 每30分钟执行一次检测
schedule.every(30).minutes.do(check_inventory_consistency)

while True:
    schedule.run_pending()
    time.sleep(1)

# Python代码示例 - 异步更新通知
import redis
from kafka import KafkaConsumer

def listen_for_inventory_updates():
    redis_client = redis.StrictRedis(host='localhost', port=6379, db=0)
    consumer = KafkaConsumer('product_stock_updates', bootstrap_servers='localhost:9092', group_id='inventory_checker')

    for message in consumer:
        # 处理库存更新通知
        product_info = json.loads(message.value)
        product_id = product_info['product_id']

        # 从Redis中获取缓存库存
        redis_stock = int(redis_client.get(f'product:{product_id}:stock') or 0)

        # 检测库存一致性
        if redis_stock != product_info['new_stock']:
            print(f"Inventory inconsistency detected for product {product_id}. Redis: {redis_stock}, Kafka: {product_info['new_stock']}")

# 启动监听线程
listen_thread = threading.Thread(target=listen_for_inventory_updates)
listen_thread.start()