setting-up-cloudwatch-alarm-notifications

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Setting Up CloudWatch Alarm Notifications

配置CloudWatch告警通知

Overview

概述

Domain expertise for configuring Amazon CloudWatch alarm notification channels using Amazon SNS topics and subscriptions. Covers creating encrypted SNS topics, setting up subscriptions for email, SMS, and webhook endpoints, configuring topic policies for CloudWatch access, and linking alarms to notification actions.

本技能专注于使用Amazon SNS主题和订阅配置Amazon CloudWatch告警通知渠道。涵盖创建加密的SNS主题、为电子邮件、短信和webhook端点设置订阅、配置供CloudWatch访问的主题策略，以及将告警与通知操作关联。

Set up alarm notifications

配置告警通知

To configure notification channels for a CloudWatch alarm, follow the procedure exactly. See CloudWatch alarm notification setup procedure.

要为CloudWatch告警配置通知渠道，请严格遵循以下步骤。请参阅CloudWatch告警通知配置流程。

Troubleshooting

故障排查

Email notifications not received

未收到电子邮件通知

Verify the email subscription was confirmed. Use

aws sns list-subscriptions-by-topic

to check that the subscription status is "Confirmed" rather than "PendingConfirmation".

请确认电子邮件订阅已完成验证。使用

aws sns list-subscriptions-by-topic

命令检查订阅状态是否为“Confirmed”（已确认），而非“PendingConfirmation”（待确认）。

SMS notifications failing

短信通知失败

Ensure the phone number is in E.164 format (e.g., +12345678901) and that SMS is supported in your AWS region.

确保电话号码采用E.164格式（例如：+12345678901），且您的AWS区域支持短信服务。

Alarm not triggering notifications

告警未触发通知

Verify the alarm has the correct SNS topic ARN in its AlarmActions using

aws cloudwatch describe-alarms

, and ensure ActionsEnabled is set to true.

使用

aws cloudwatch describe-alarms

命令验证告警的AlarmActions中是否包含正确的SNS主题ARN，并确保ActionsEnabled设置为true。