I m New to Cosmos DB, 但我想对以下几个方面有深刻的了解:
- What is the partition key?
我的理解是,现在和现在都无法理解;具有相同分级钥匙的物项将进入同样的储存分级,这样可以在系统扩大时更好地平衡负荷。
- How to decide on a good partition key? Could somebody please provide an example?
感谢很多!
I m New to Cosmos DB, 但我想对以下几个方面有深刻的了解:
我的理解是,现在和现在都无法理解;具有相同分级钥匙的物项将进入同样的储存分级,这样可以在系统扩大时更好地平衡负荷。
感谢很多!
1. 导言 分离的关键是什么?
在Azure cosmos db中,有两个部分: Physical partition
和logical partition
。
A. 物理分离是固定数额的由SD支持的储存,加上可变资源。
B. 记录分门别类是一种分门别类,储存与单一分级关键值有关的所有数据。
我认为,你提到的分门别类钥匙是合乎逻辑的分治钥匙。 分割的关键是数据的合理分割,并为Cesmos DB提供自然边界,用于在物理分界线之间分配数据。 详情请上。 分配工作方式。
2. 结 论 如何决定一个良好的分治关键? 有些人能否举一个例子?
你们需要考虑选择一个具有广泛价值甚至有出入模式的财产名称。 理想的分门槛钥匙是,在你的询问中经常作为过滤器出现,而且有足够的基本要素确保你的解决办法可以衡量。
例如,您的数据以<代码>id和color
为标题,并询问了<代码>color作为更经常的过滤器。 您需要选取<代码>color,而不是id
,用于分级钥匙,这对你的询问工作效率更高。 由于每个项目都有不同的<代码>id,但可能具有相同的<代码>color。 其范围很广。 另外,如果添加<代码>color,则分部分钥匙可以计算。
详情请见。 Partition and volume in Cosmos DB.
希望能帮助你们。
你必须根据你的工作量选择分治。 它们可分为两类。
阅读繁重的工作量是,数据读得多于书面数据的情况,如产品目录,数据加添/更新频率较低,而浏览产品的人更多。
注销工作量是数据撰写量超过读数的。 常见的情况是,IoT装置从多个传感器发送了多种数据。 你将撰写大量数据给科斯莫斯开发银行,因为你可以每秒获得数据。
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