DynamoDB 使用 Cloudformation 自动扩展

Posted 2023-03-04

【中文标题】DynamoDB 使用 Cloudformation 自动扩展

【英文标题】：DynamoDB auto scaling with Cloudformation

【发布时间】：2017-12-11 00:22:18

【问题描述】：

AWS 为 DynamoDB 发布了 auto scaling。我想知道如何通过 Cloudformation 创建具有自动缩放功能的表。

【参考方案1】：

这是 DynamoDB 表的 ClodFormation 自动扩展策略。希望它能让您对如何形成策略脚本有所了解。

  "Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
  "Properties" : 
    "PolicyName" : "MyScalingPolicy",
    "PolicyType" : "TargetTrackingScaling",
    "ResourceId" : "arn:aws:dynamodb:us-east-1:123456789012:table/books_table",
    "ScalableDimension" : "dynamodb:table:WriteCapacityUnits",
    "ServiceNamespace" : "dynamodb",
    "TargetTrackingScalingPolicyConfiguration" : 
    "PredefinedMetricSpecification": 
            "PredefinedMetricType": "DynamoDBWriteCapacityUtilization"
        ,
        "ScaleOutCooldown": 60,
        "ScaleInCooldown": 60,
        "TargetValue": 50.0
        
  

参考资料：-

CloudFormaction auto-scaling policy

AWS CLI command for auto scaling

AWS CLI 命令：-

aws application-autoscaling put-scaling-policy \
    --service-namespace dynamodb \
    --resource-id "table/TestTable" \
    --scalable-dimension "dynamodb:table:WriteCapacityUnits" \
    --policy-name "MyScalingPolicy" \
    --policy-type "TargetTrackingScaling" \
    --target-tracking-scaling-policy-configuration file://scaling-policy.json

scaling-policy.json:-

    "PredefinedMetricSpecification": 
        "PredefinedMetricType": "DynamoDBWriteCapacityUtilization"
    ,
    "ScaleOutCooldown": 60,
    "ScaleInCooldown": 60,
    "TargetValue": 50.0
   

【讨论】：

谢谢，成功了！！我创建了一个 ScalingPolicy、ScalingTarget 和一个角色

如何将多个表（资源）添加到可扩展的目标？