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我正在使用registerScalableTarget
将我的全局二级索引设置为自动缩放。以下是我的代码。无论如何,我都不会收到任何错误消息。以编程方式将DynamoDB GSI设置为自动缩放
var registerScalableTargetForWCU= function(event, callback) {
var params= {
ServiceNamespace: "dynamodb", RoleARN: event.roleArn,
ResourceId: "table/TableName/index/IndexName",
ScalableDimension: "dynamodb:index:WriteCapacityUnits",
MinCapacity: 1, MaxCapacity: 2
};
applicationautoscaling.registerScalableTarget(params, function(err, res) {
err ? callback(err) : callback(null, res);
});
}
但在管理控制台上,“Auto Scaling”保持不变,如下面的屏幕截图所示。
如果我跑describeScalableTargets
,我得到以下虽然
{ ScalableTargets: [ { ServiceNamespace: 'dynamodb',
ResourceId: 'table/TableName/index/IndexName',
ScalableDimension: 'dynamodb:index:ReadCapacityUnits',
MinCapacity: 1,
MaxCapacity: 1,
RoleARN: 'RoleARN',
CreationTime: 2017-08-06T08:32:30.294Z },
{ ServiceNamespace: 'dynamodb',
ResourceId: 'table/TableName/index/IndexName',
ScalableDimension: 'dynamodb:index:WriteCapacityUnits',
MinCapacity: 2,
MaxCapacity: 10,
RoleARN: 'RoleARN',
CreationTime: 2017-08-06T08:32:30.460Z } ] }
它是自动缩放了吗?
我的印象是,没有必要进行缩放政策下。即,当我'registerScalableTarget'发电机表时,它会自动自动缩放,而不必定义一个策略。 – ngzhongcai