connecting-lambda-to-dynamodb

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Connecting Lambda to DynamoDB

将Lambda连接到DynamoDB

Overview

概述

Domain expertise for connecting AWS Lambda functions to DynamoDB tables, including IAM execution role creation, function deployment, DynamoDB stream configuration, and event source mapping setup.

本领域专长涵盖将AWS Lambda函数连接到DynamoDB表的相关内容，包括IAM执行角色创建、函数部署、DynamoDB流配置以及事件源映射设置。

Connect a Lambda function to DynamoDB

将Lambda函数连接到DynamoDB

To set up end-to-end Lambda-DynamoDB integration with IAM roles, streams, and event source mapping, follow the procedure exactly. See Lambda-DynamoDB connection procedure.

要通过IAM角色、流和事件源映射完成端到端的Lambda-DynamoDB集成，请严格遵循以下步骤。详见Lambda-DynamoDB连接步骤。

Troubleshooting

故障排除

Lambda function not triggering

Lambda函数未触发

Verify the event source mapping is active, DynamoDB streams are enabled with the correct view type, and the execution role has proper permissions. See the full procedure for details.

验证事件源映射处于激活状态，DynamoDB流已启用并配置了正确的视图类型，且执行角色具备适当权限。详情请参阅完整的步骤。

Permission denied errors

权限拒绝错误

Check the IAM role has

AWSLambdaDynamoDBExecutionRole

attached and the trust policy allows Lambda to assume it.

检查IAM角色是否已附加

AWSLambdaDynamoDBExecutionRole

，且信任策略允许Lambda承担该角色。

Function timeout issues

函数超时问题

Increase the timeout setting or adjust the batch size in the event source mapping.

增加超时设置或调整事件源映射中的批处理大小。