本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。 # Amazon CloudFormation 使用在 Streams 使用者应用程序中设置 Neptune-to-Neptune复制 Neptune-to-Neptune 复制设置 您可以使用 Amazon CloudFormation 模板来设置 Neptune 流使用者应用程序以支持 Neptune-to-Neptune复制。 **Topics** + [ ## 为你所在的地区选择一个 Amazon CloudFormation 模板 ](#streams-consumer-cfn-by-region) + [ ## 添加有关您正在创建的 Neptune 流使用者堆栈的详细信息 ](#streams-consumer-cfn-stack-details) + [ ## 运行 Amazon CloudFormation 模板 ](#streams-consumer-cfn-complete) + [ ## 使用最新的 Lambda 构件更新流轮询器 ](#streams-consumer-cfn-update) ## 为你所在的地区选择一个 Amazon CloudFormation 模板 选择一个 Amazon CloudFormation 模板 要在 Amazon CloudFormation 控制台上启动相应的 Amazon CloudFormation 堆**栈，请根据要使用的 Amazon 区域，选择下表中的启动堆栈**按钮之一。 | Region | 视图 | 在 Designer 中查看 | 启动 | | --- | --- | --- | --- | | 美国东部（弗吉尼亚州北部） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=us-east-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=us-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=us-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 美国东部（俄亥俄州） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=us-east-2&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=us-east-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=us-east-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 美国西部（北加利福尼亚） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=us-west-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=us-west-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=us-west-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 美国西部（俄勒冈州） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=us-west-2&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=us-west-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=us-west-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 加拿大（中部） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=us-west-2&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=ca-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=ca-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 南美洲（圣保罗） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=sa-east-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=sa-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=sa-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 欧洲地区（斯德哥尔摩） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=eu-north-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=eu-north-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=eu-north-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 欧洲地区（爱尔兰） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=eu-west-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=eu-west-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=eu-west-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 欧洲地区（伦敦） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=eu-west-2&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=eu-west-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=eu-west-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 欧洲地区（巴黎） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=eu-west-3&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=eu-west-3#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=eu-west-3#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 欧洲地区（法兰克福） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=eu-central-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=eu-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=eu-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 中东（巴林） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=me-south-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=me-south-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=me-south-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 中东（阿联酋）： | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=me-central-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=me-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=me-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 以色列（特拉维夫） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=il-central-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=il-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=il-central-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 非洲（开普敦） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=af-south-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=af-south-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=af-south-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 亚太地区（东京） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=ap-northeast-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=ap-northeast-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=ap-northeast-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 亚太地区（香港） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=ap-east-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=ap-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=ap-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 亚太地区（首尔） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=ap-northeast-2&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=ap-northeast-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=ap-northeast-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 亚太地区（新加坡） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=ap-southeast-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=ap-southeast-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=ap-southeast-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 亚太地区（悉尼） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=ap-southeast-2&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=ap-southeast-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=ap-southeast-2#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 亚太地区（孟买） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=ap-south-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=ap-south-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=ap-south-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 中国（北京） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=cn-north-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=cn-north-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=cn-north-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | 中国（宁夏） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws.cn/cloudformation/designer/home?region=cn-northwest-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws.cn/cloudformation/home?region=cn-northwest-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws.cn/cloudformation/home?region=cn-northwest-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | Amazon GovCloud （美国西部） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws-us-gov.com/cloudformation/designer/home?region=us-gov-west-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws-us-gov.com/cloudformation/home?region=us-gov-west-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws-us-gov.com/cloudformation/home?region=us-gov-west-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | | Amazon GovCloud （美国东部） | [视图](https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [在 Designer 中查看](https://console.amazonaws-us-gov.com/cloudformation/designer/home?region=us-gov-east-1&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | [https://console.amazonaws-us-gov.com/cloudformation/home?region=us-gov-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json](https://console.amazonaws-us-gov.com/cloudformation/home?region=us-gov-east-1#/stacks/new?stackName=NeptuneStreamPoller&templateURL=https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json) | 在 **Create stack (创建堆栈)** 主页上，选择 **Next (下一步)**。 ## 添加有关您正在创建的 Neptune 流使用者堆栈的详细信息 添加堆栈详细信息 **Specify Stack Details (指定堆栈详细信息)** 页面提供了属性和参数，可用于控制应用程序的设置。 **堆栈名称**-您正在创建的新 Amazon CloudFormation 堆栈的名称。通常可以使用默认值 `NeptuneStreamPoller`。 在 **Parameters (参数)** 下，提供以下内容： **流使用者运行的 VPC 的网络配置** + **`VPC`** – 提供将运行轮询 Lambda 函数的 VPC 的名称。 + **`SubnetIDs`** – 与其建立网络接口的子网。添加与您的 Neptune 集群对应的子网。 + **`SecurityGroupIds`**— 提供授予 IDs 对源 Neptune 数据库集群的入站写入访问权限的安全组。 + **`RouteTableIds`** – 如果您还没有 Amazon DynamoDB 端点，则需要在 Neptune VPC 中创建一个。您必须提供与子网 IDs 关联的以逗号分隔的路由表列表。 + **`CreateDDBVPCEndPoint`** – 一个布尔值，默认为 `true`，表示是否需要创建 DynamoDB VPC 端点。如果您已在 VPC 中创建 DynamoDB 端点，则只需将其更改为 `false`。 + **`CreateMonitoringEndPoint`** – 一个布尔值，默认为 `true`，表示是否需要创建监控 VPC 端点。如果您已在 VPC 中创建镜像终端节点，则只需将其更改为 `false`。 **流轮询器** + **`ApplicationName`** – 您通常可以将此设置保留为默认值 (`NeptuneStream`)。如果您使用不同的名称，则该名称必须是唯一的。 + **`LambdaMemorySize`** – 用于设置 Lambda 轮询器函数可用的内存大小。默认值为 2,048 MB。 + **`LambdaRuntime`** – 从 Neptune 流中检索项目的 Lambda 函数使用的语言。您可以将其设置为 `python3.9` 或 `java8`。 + **`LambdaS3Bucket`** – 包含 Lambda 代码构件的 Amazon S3 桶。除非您使用从其它 Amazon S3 桶加载的自定义 Lambda 轮询函数，否则将此设置保留为空。 + **`LambdaS3Key`** – 与您的 Lambda 代码构件对应的 Amazon S3 键。除非您使用自定义 Lambda 轮询函数，否则将此设置保留为空。 + **`LambdaLoggingLevel`** – 通常，将此设置保留为默认值，即 `INFO`。 + **`ManagedPolicies`** – 列出用于执行 Lambda 函数的托管式策略。通常，除非您使用自定义 Lambda 轮询函数，否则将此设置保留为空。 + **`StreamRecordsHandler`** – 通常，除非您为 Neptune 流中的记录使用自定义处理程序，否则将此设置保留为空。 + **`StreamRecordsBatchSize`** – 要从流中提取的最大记录数。您可以使用此参数来优化性能。默认值 (`5000`) 是一个很好的开始。允许的最大值为 10,000。数字越大，从流读取记录所需的网络调用就越少，但处理记录所需的内存越多。此参数的值越低，吞吐量就越低。 + **`MaxPollingWaitTime`** – 两次轮询之间的最长等待时间（以秒为单位）。确定调用 Lambda 轮询器轮询 Neptune 流的频率。将此值设置为 0 以进行连续轮询。最大值为 3600 秒（1 小时）。默认值（60 秒）是一个很好的开始，具体取决于图形数据更改的速度。 + **`MaxPollingInterval`** – 最长连续轮询周期（以秒为单位）。使用此参数设置 Lambda 轮询函数的超时。该值应介于 5 秒到 900 秒之间。默认值（600 秒）是一个很好的开始。 + **`StepFunctionFallbackPeriod`**— 等待轮询器的 step-function-fallback-period单位数，之后通过 Amazon CloudWatch Events 调用步骤函数以从故障中恢复。默认值（5 分钟）是一个很好的开始。 + **`StepFunctionFallbackPeriodUnit`** – 用于衡量前面的 `StepFunctionFallbackPeriodUnit` 的时间单位（`minutes`、`hours` 或 `days`）。默认值 (`minutes`) 通常就足够了。 + **`StartingCheckpoint`** – 流轮询器的起始检查点。默认值为 `0:0`，表示从 Neptune 流的开头开始。 + **`StreamPollerInitialState`** – 轮询器的初始状态。默认值为 `ENABLED`，这意味着流复制将在整个堆栈创建完成后立即开始。 **Neptune 流** + **`NeptuneStreamEndpoint`** –（*必需*）Neptune 源流的端点。它采用两种形式之一： + **`https://your DB cluster:port/propertygraph/stream`**（或其别名 `https://your DB cluster:port/pg/stream`）。 + **`https://your DB cluster:port/sparql/stream`**. + **`Neptune Query Engine`** – 选择 Gremlin、openCypher 或 SPARQL。 + **`IAMAuthEnabledOnSourceStream`** – 如果您的 Neptune 数据库集群使用 IAM 身份验证，请将此参数设置为 `true`。 + **`StreamDBClusterResourceId`** – 如果您的 Neptune 数据库集群使用 IAM 身份验证，请将此参数设置为集群资源 ID。资源 ID 与集群 ID 不同。相反，它采取的形式是：`cluster-` 后跟 28 个字母数字字符。可以在 Neptune 控制台的**集群详细信息**下找到它。 **目标 Neptune 数据库集群** + **`TargetNeptuneClusterEndpoint`** – 目标备份集群的集群端点（仅限主机名）。 请注意，如果您指定 `TargetNeptuneClusterEndpoint`，则不能同时指定 `TargetSPARQLUpdateEndpoint`。 + **`TargetNeptuneClusterPort`** – 目标集群的端口号。 请注意，如果您指定 `TargetSPARQLUpdateEndpoint`，则会忽略 `TargetNeptuneClusterPort` 的设置。 + **`IAMAuthEnabledOnTargetCluster`** – 如果要在目标集群上启用 IAM 身份验证，则设置为 true。 + **`TargetAWSRegion`**— 目标备份集群的 Amazon 区域，例如`us-east-1`）。只有当目标备份集群的 Amazon 区域与 Neptune 源集群的区域不同时（例如跨区域复制），您才必须提供此参数。如果源区域和目标区域相同，则此参数是可选的。 请注意，如果该`TargetAWSRegion`值不是 Nep [tune 支持的有效 Amazon 区域，](limits.md#limits-regions)则该过程将失败。 + **`TargetNeptuneDBClusterResourceId`** – *可选*：只有在目标数据库集群上启用 IAM 身份验证时才需要此参数。设置为目标集群的资源 ID。 + **`SPARQLTripleOnlyMode`** - 确定是否启用仅限三重模式的布尔标志。在仅限三重模式下，不存在命名图形复制。默认值为 `false`。 + **`TargetSPARQLUpdateEndpoint`** – SPARQL 更新的目标端点的 URL，例如 `https://abc.com/xyz`。此端点可以是任何支持四元组或三元组的 SPARQL 存储。 请注意，如果您指定 `TargetSPARQLUpdateEndpoint`，则无法同时指定 `TargetNeptuneClusterEndpoint`，`TargetNeptuneClusterPort` 的设置将被忽略。 + **`BlockSparqlReplicationOnBlankNode `**— 布尔标志，如果设置为`true`，则停止复制 SPARQL (RDF) 数据。 BlankNode 默认值为 `false`。 **警报** + **`Required to create Cloud watch Alarm`**— `true` 如果要为新堆栈创建 CloudWatch 警报，请将其设置为。 + **`SNS Topic ARN for Cloudwatch Alarm Notifications`**— 应在 CloudWatch 其中发送警报通知的 SNS 主题 ARN（仅在启用警报时才需要）。 + **`Email for Alarm Notifications`** – 应向其发送警报通知的电子邮件地址（仅在启用警报时才需要）。 对于警报通知的目标，您可以添加仅限 SNS、仅限电子邮件或同时使用 SNS 和电子邮件。 ## 运行 Amazon CloudFormation 模板 运行模板 现在，您可以完成预调配 Neptune 流使用者应用程序实例的过程，如下所示： 1. 在 Amazon CloudFormation**指定堆栈详细信息**页面上，选择**下一步**。 1. 在**选项**页面上，选择**下一步**。 1. 在**审核**页面上，选中第一个复选框以确认 Amazon CloudFormation 将创建 IAM 资源。选中第二个复选框以确认新堆栈的 `CAPABILITY_AUTO_EXPAND`。 **注意** `CAPABILITY_AUTO_EXPAND` 明确确认在创建堆栈时将扩展宏，而无需事先审核。用户通常通过处理的模板创建更改集，以便在实际创建堆栈之前对宏所做的更改进行审核。有关更多信息，请参阅 Amazon CloudFormation [CreateStack](https://docs.amazonaws.cn/AWSCloudFormation/latest/APIReference/API_CreateStack.html)API *参考中的Amazon CloudFormation API*。 然后选择**创建**。 ## 使用最新的 Lambda 构件更新流轮询器 更新流轮询器 您可以使用最新的 Lambda 代码构件更新流轮询器，如下所示： 1. 在中 Amazon Web Services 管理控制台，导航到主父 Amazon CloudFormation 堆栈 Amazon CloudFormation 并选择该堆栈。 1. 为堆栈选择**更新**选项。 1. 选择**替换当前模板**。 1. 对于模板源，选择 **Amazon S3 URL** 并输入以下 S3 URL： ``` https://aws-neptune-customer-samples.s3.amazonaws.com/neptune-stream/neptune_to_neptune.json ``` 1. 在不更改任何 Amazon CloudFormation 参数的情况下选择 “**下一步**”。 1. 选择 **Update Stack**。 现在，堆栈将使用最新的构件更新 Lambda 构件。