Kinesis Stream和DynamoDB流之间的区别 [英] Difference between Kinesis Stream and DynamoDB streams

问题描述

他们似乎在对我做同样的事情。有人可以向我解释这些区别吗？

解决方案

两者之间的高度差异：

Kinesis Streams 允许您生成和使用大量数据（日志，Web数据等），其中 DynamoDB Streams 是DynamoDB的本地功能，允许您查看DynamoDB表项目的细粒度更改。

更多详细信息：

Amazon Kinesis Streams

Amazon Kinesis Streams是
DynamoDB 是AWS上的NoSQL选项，基本单位是用于存储项的表。 DynamoDB Streams是一项功能，您可以打开该功能，以在更改发生时实时生成对项的所有更改。启用该功能后，您可以选择写入流中的内容：

• 仅键-仅


• 新图像-修改后的整个项目。


• 旧图像-整个项目，如修改前一样。


• 新旧图像-新图像和旧图像项目的旧映像

DynamoDB流通常用于复制或表审核。有关更多信息，请参见有关DynamoDB流的开发人员指南。

我发现如果您偶然发现本文首先，说明它们是相似的。它们是共享相似API调用的不同服务。

They seem to be doing the same thing to me. Can anyone explain to me the difference?

解决方案

High level difference between the two:

Kinesis Streams allows you to produce and consume large volumes of data(logs, web data, etc), where DynamoDB Streams is a feature local to DynamoDB that allows you to see the granular changes to your DynamoDB table items.

More details:

Amazon Kinesis Streams

Amazon Kinesis Streams is part of Big Data suite of services at AWS. From the developer documentation:

You can use Streams for rapid and continuous data intake and aggregation. The type of data used includes IT infrastructure log data, application logs, social media, market data feeds, and web clickstream data. The following are typical scenarios for using Streams:

Accelerated log and data feed intake and processing ...

Real-time metrics and reporting ...

Real-time data analytics ...

Complex stream processing ...

DynamoDB Streams

DynamoDB is the NoSQL option at AWS and the basic unit are tables that store items. DynamoDB Streams is a feature you can turn on to produce all changes to items as a stream in real time as the changes happen. When you turn on the feature, you choose what is written to the stream:

• Keys only—only the key attributes of the modified item.
• New image—the entire item, as it appears after it was modified.
• Old image—the entire item, as it appeared before it was modified.
• New and old images—both the new and the old images of the item

DynamoDB streams are commonly used for replication or table audits. More information can be found at the developer guide on DynamoDB streams.

I can see where you might have gotten confused if you stumbled across this article first, which says that they are similar. They are different services which share similar API calls.

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