AWS Dynamo不会自动缩减 [英] AWS Dynamo not auto-scaling back down

问题描述

以下是我在表格上设置的参数：

Here are the parameters I have set on the table:

这就是我所看到的

And here is what I see for the capacity over time.

为什么它仍保持25个写入单位？

Why is it remaining at 25 write units? Shouldn't it go down to 5 write units (the minimum set)?

推荐答案

那是因为 AWS DynamoDB AutoScaling文档：

当前，如果表的已用容量变为零，则Auto Scaling不会缩减您的预配置容量。解决方法是，您可以向表发送请求，直到Auto Scaling缩减到最小容量为止，或者更改策略以将最大预配置容量减小为与最小预配置容量相同。

Currently, Auto Scaling does not scale down your provisioned capacity if your table’s consumed capacity becomes zero. As a workaround, you can send requests to the table until Auto Scaling scales down to the minimum capacity, or change the policy to reduce the maximum provisioned capacity to be the same as the minimum provisioned capacity.

在您的情况下，消耗容量在8:00到10:00之间下降到0，因此预配置容量保持为25。

In your case, the consumed capacity went down to 0 between 8:00 to 10:00, so the provisioned capacity remained at 25.

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