了解 DocumentDB 响应标头中的 x-ms-resource-usage [英] Understanding the x-ms-resource-usage in DocumentDB response header

问题描述

在通过 Id 执行简单的 Get 操作时，返回单个文档(不是带有一个文档的数组)，我得到以下 x-ms-resource-usage:

While performing a simple Get operation by Id where a single document is returned (not an array with one document) I get the following x-ms-resource-usage:

x-ms-resource-usage:documentSize:0;documentsSize:288;collectionSize=307;

问题:

• 为什么 documentSize 为 0?
• 计量单位是什么?字节?
• documentSize 和 documentsSize 有什么区别?请注意，查询只返回一个文档.
• 什么是collectionSize?这是集合中的文档总数吗?
• x-ms-resource-usage和x-ms-resource-quota有什么区别?

• Why is documentSize 0?
• What is the unit of measure? Bytes?
• What is the difference between documentSize and documentsSize? Please note the query only returns one document.
• What is the collectionSize? Is that the total number of documents in the collection?
• What is the difference between x-ms-resource-usage and x-ms-resource-quota?

推荐答案

我很确定数字如下，并且全部以 KB 为单位:

I'm fairly sure the numbers are as follows, and all in KB:

• documentSize:文档的大小
• documentsSize:集合中所有文档的总大小
• collectionSize:集合中所有文档的总大小，以及索引等开销

• documentSize: Size of the document
• documentsSize: Combined size of all documents in collection
• collectionSize: Combined size of all documents in collection, along with overhead such as indexes

x-ms-resource-usage 是关于集合中消耗的资源，而 x-ms-resource-quota 会给你你的限制.因此，使用配额时，您会看到 documentsSize 和 collectionSize 都设置为 10485760，即 10GB (10,485,760 MB).

x-ms-resource-usage is about consumed resources within the collection, while x-ms-resource-quota is going to give you your limits. So with quota, you'll see documentsSize and collectionSize both set to something like 10485760, which is 10GB (10,485,760 MB).

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