如何在CloudFormation上将DynamoDB读/写容量模式设置为按需

Question

我已经看过这个关于DynamoDB On-demand的网站,我将我的表格(由CloudFormation创建)更新为按需.现在,当我尝试更新我的堆栈时,我收到此错误:

一个或多个参数值无效:当BillingMode为PAY_PER_REQUEST时,无法指定ReadCapacityUnits和WriteCapacityUnits

有没有办法在CloudFormation上将DynamoDB读/写容量模式设置为按需？

编辑:

我已在AWS Console上更新为按需.

编辑2:

我的模板:

DynamoDBUsersTable:
    Type: AWS::DynamoDB::Table
    Description: Users table
    Properties:
      TableName: !Sub ${StackName}-users-table
      AttributeDefinitions:
        - AttributeName: userId
          AttributeType: S
      KeySchema:
        - AttributeName: userId
          KeyType: HASH
      ProvisionedThroughput:
        ReadCapacityUnits: 10
        WriteCapacityUnits: 10

谢谢.

Answer 1

您需要添加BillingMode: PAY_PER_REQUEST属性并ProvisionedThroughput从表属性和所有GlobalSecondaryIndexes指定的属性中删除它们.所以最后你的模板看起来像:

DynamoDBUsersTable:
    Type: AWS::DynamoDB::Table
    Description: Users table
    Properties:
      TableName: !Sub ${StackName}-users-table
      BillingMode: PAY_PER_REQUEST
      AttributeDefinitions:
        - AttributeName: userId
          AttributeType: S
      KeySchema:
        - AttributeName: userId
          KeyType: HASH