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我想用芹菜插入大数据在我的mongodb,但问题是并发在MongoDB中。如果我一次发送多个任务到芹菜,一部分数据将被插入到mongodb中,而另一些数据则不会。我想这是因为mongodb在插入操作时锁定了数据库,但我需要一种解决方案来发送相同类型的多个任务以在数据库中插入数据。像检查数据库是否被锁定,如果它正在等待它解锁。这里是我的代码的一部分:如何使用芹菜插入数据到mongodb使用mongoengine
@celery.task(name='celery_tasks.add_book_product')
def add_book_product(product_dict, store_id):
connect(DefaultConfig.MONGODB_DB, host=DefaultConfig.MONGODB_HOST)
store_obj = Store.objects.get(pk=store_id)
try:
book = Books.objects.get(pk=product_dict['RawBook'])
try:
product_obj = Product.objects.get(store=store_obj, related_book=book, kind='book')
print("Product {} found for store {}".format(product_obj.id, store_obj.id))
product_obj.count = int(product_dict['count'])
product_obj.buy_price = int(product_dict['buy_book'])
product_obj.sell_price = int(product_dict['sell_book'])
product_obj.save()
except (DoesNotExist, ValidationError):
product_obj = Product(store=store_obj,
related_book=book,
kind='book',
count=int(product_dict['count']),
buy_price=int(product_dict['buy_book']),
sell_price=int(product_dict['sell_book']),
name=book.name_fa)
product_obj.save()
print("Appending books to store obj...")
store_obj.products.append(product_obj)
store_obj.save()
print("Appending books to store obj done")
return "Product {} saved for store {}".format(product_obj.id, store_obj.id)
except (DoesNotExist, ValidationError):
traceback.print_exc()
return "Product with raw book {} does not exist.".format(product_dict['RawBook'])