等待在 dynamodb 中创建 table 以避免找不到请求的资源

Question

如何在开始插入元素之前等待 dynamodb 实例 table 创建？

    dynamodb = boto3.client('dynamodb', region_name="eu-west-3")
    dynamodb.create_table(
            TableName='mytable',
            KeySchema=[
                {
                    'AttributeName': 'id',
                    'KeyType': 'HASH'  # Partition key
                }
                # no sort key
            ],
            AttributeDefinitions=[
                {
                    'AttributeName': 'id',
                    'AttributeType': 'S'
                },
            ],
            BillingMode='PAY_PER_REQUEST',
        )

当我开始我的批处理时，我收到了，因为 table 还没有创建：

botocore.errorfactory.ResourceNotFoundException:
An error occurred (ResourceNotFoundException) when calling the BatchWriteItem operation:
Requested resource not found

我想等待创作结束table。怎么做？

Answer 1

你可以用这个来等待创建结束 table:

waiter = dynamodb.get_waiter('table_exists')
waiter.wait(TableName='mytable')
# at this line your table is fully created and available

如文档中所述：https://boto3.amazonaws.com/v1/documentation/api/latest/guide/clients.html#waiters

等待在 dynamodb 中创建 table 以避免找不到请求的资源

Wait for the table to be created in dynamodb to avoid Requested resource not found

python

amazon-dynamodb

boto3