---
格式版本: 2
标题: "Amazon CloudWatch now supports warm-up periods for alarms"
原文链接: "https://aws.amazon.com/cn/about-aws/whats-new/2026/08/amazon-cloudwatch-alarms-warmup-period/"
发布日期: "2026-09-01"
发布时间校准状态: "found"
发布时间需复核: "否"
发布时间来源: "llm:local:original_script_field"
发布时间证据: "postDateTime: 2026-09-01T08:00:00Z"
发布时间校准原因: "候选日期来自页面脚本中的postDateTime字段，与AWS官方公告发布时间一致。"
发布时间校准置信度: "1"
发布时间候选数量: 1
发布时间严格候选数量: 0
发布时间原页读取状态: "source template page reused from URL open"
发布时间未找到原因: ""
发布时间校准时间: "2026-09-02T14:47:36+08:00"
发布时间仲裁状态: "confirmed"
发布时间仲裁尝试次数: 1
发布时间仲裁耗时毫秒: 4974
发现时间: "2026-09-02T14:46:59+08:00"
入库时间: "2026-09-02T06:47:41.495Z"
来源平台: "固定入口"
搜索渠道: "fixed_url"
搜索词: "https://aws.amazon.com/new"
匹配关键词:
  []
相关厂家:
  - "AWS"
相关专家:
  []
内容类型: "网页"
抓取工具: "Free Fetch + Defuddle"
清洗工具: "Defuddle Markdown + Defuddle/Readability 正文提取"
原始附件:
  []
AI优质: "否"
AI打分: 42
AI分档: "非优质"
AI质检状态: "不通过"
AI打分理由: "正文主线是AWS官方发布CloudWatch告警预热期功能，新增WarmUpConfiguration参数、1至2880分钟时长及数据充足后提前结束等可核验信息；固定知识库未见该功能的重复证据。当前页面虽是完整、可追溯的官方发布，并明确全区域可用，但内容属于通用云监控与运维降噪，不涉及AI机架、互连、供电、液冷或可复用的机架级基础设施机制，也无相关客户或规模部署。命中“教程与运维选型”硬否决项，不能进入业务情报库。"
AI质检模型: "gpt-5.6-sol"
AI质检时间: "2026-09-02T14:48:55+08:00"
AI主题相关性: 1
AI来源权威性: 15
AI新颖性: 10
AI技术细节: 5
AI商业部署信号: 2
AI完整性: 9
AI评分提示词版本: "v17-精简生产版"
AI评分提示词SHA256: "48fb9777f386026761b4873eaff30807694fb11e9b352d7c69bf2dfde750cc7d"
AI评分知识库版本: "knowledge_base_v1-20260819+runtime.81"
AI评分知识库SHA256: "3b93d12e47749b3512f545f51c44c011bdc0931677c2cfe61e4df59a2b1a5a48"
AI评分知识库检索词: "[\"AWS\",\"https://aws.amazon.com/new\",\"CI/CD\"]"
AI评分知识库命中: "[{\"id\":\"runtime-9f43a79e9c23b1f329d8a71a\",\"title\":\"AWS and NVIDIA to Deliver 2 Million Additional GPUs and Next-Generation Infrastructure for Agentic and Physical AI\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-26\",\"matchedTerms\":[\"AWS\"],\"rank\":-6.462648364354998},{\"id\":\"runtime-bf6a5bdbe28961c50fb91e45\",\"title\":\"Amazon EC2 P6-B300 instances are now available in additional AWS Regions\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-28\",\"matchedTerms\":[\"AWS\"],\"rank\":-6.035296325361788},{\"id\":\"runtime-b86df24f43e82ced83868dce\",\"title\":\"AWS, Anthropic Complete Project Rainier AI Cluster\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-17\",\"matchedTerms\":[\"AWS\"],\"rank\":-5.976288065695294},{\"id\":\"runtime-0eb5e80d3c503014391649da\",\"title\":\"122亿美元！Marvell拿下谷歌AI芯片大单\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-20\",\"matchedTerms\":[\"AWS\"],\"rank\":-5.808054446025108},{\"id\":\"runtime-52343a012216677e078ffdd2\",\"title\":\"NVIDIA NVLink Fusion Expands With NVHBM Custom High-Bandwidth Memory\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-26\",\"matchedTerms\":[\"AWS\"],\"rank\":-5.695190518767604}]"
AI摘要: "Amazon CloudWatch 新增告警预热期功能，可为指标告警和日志告警延迟评估，避免新资源或服务启动期间因缺失数据产生误报。"
AI摘要模型: "ali-deepseek-v4-flash"
AI摘要时间: "2026-09-02T08:10:58.238Z"
采集批次: "2026年9月2日14点42分57秒"
采集批次ID: "20260902-144257-884"
去重键: "https://aws.amazon.com/cn/about-aws/whats-new/2026/08/amazon-cloudwatch-alarms-warmup-period"
---

Amazon CloudWatch now lets you configure a warm-up period for metric alarms and log alarms, delaying alarm evaluation for a set time after the alarm is created. This reduces noise from missing data while a new resource or service starts up and begins publishing metrics. For example, a team that provisions a new microservice and its alarms together through a CI/CD pipeline can attach a warm-up period so alarms do not page the on-call engineer while the service is still starting up and has not yet published metrics.

Previously, when you created an alarm before the underlying metric was reporting data, CloudWatch evaluated the alarm right away using its "treat missing data" setting. For resources that take time to begin emitting metrics, such as a newly deployed application or service, this could cause the alarm to transition state and run actions on missing data during startup, triggering unnecessary notifications. A warm-up period fixes this by giving you two ways to hold off evaluation during startup: wait a fixed duration you set before evaluation begins, or let CloudWatch start evaluating automatically as soon as the metric actually has enough data to fill the alarm's evaluation window.

You set the warm-up period with the WarmUpConfiguration parameter when you create or update an alarm. Specify a warm-up duration from 1 to 2,880 minutes (2 days). By default, the alarm ends warm-up early and begins evaluating as soon as enough data fills its evaluation window. Additionally, you can optionally require the alarm to wait the full duration before evaluating.

Warm-up periods are available in all AWS Regions where Amazon CloudWatch is offered at no additional charge beyond standard CloudWatch alarm pricing.

To get started, see [Alarm warm-up periods](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/alarm-warm-up.html) and [Create an alarm that uses a warm-up period](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Create_WarmUp_Alarm.html) in the Amazon CloudWatch User Guide.