<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Ec2 on YuuuuuuYu</title><link>https://4d4cat.com/tags/ec2/</link><description>Recent content in Ec2 on YuuuuuuYu</description><generator>Hugo -- 0.147.2</generator><language>ko-KR</language><lastBuildDate>Wed, 19 Nov 2025 17:32:10 +0900</lastBuildDate><atom:link href="https://4d4cat.com/tags/ec2/index.xml" rel="self" type="application/rss+xml"/><item><title>2025 AWS US-East-1 region outage: DynamoDB down</title><link>https://4d4cat.com/posts/2025/inside-the-aws-us-east-1-outage/</link><pubDate>Tue, 21 Oct 2025 06:20:00 +0900</pubDate><guid>https://4d4cat.com/posts/2025/inside-the-aws-us-east-1-outage/</guid><description>&lt;h2 id="개요">개요&lt;/h2>
&lt;blockquote>
&lt;p>&lt;em>&lt;strong>Thomas Eccel(구글 Ads 스페셜리스트)의 글을 포함한 외국 저널과 AWS에 Service health 내용을 참고하여 작성했습니다.&lt;/strong>&lt;/em>&lt;/p>&lt;/blockquote>
&lt;p>한국 시간 기준, 2025년 10월 20일 오후 4시 경부터 &lt;code>US-EAST-1&lt;/code> 리전을 사용하는 다수의 서비스에서 장애가 발생&lt;/p>
&lt;p>&lt;strong>원인&lt;/strong>: &lt;em>US-EAST-1 리전의 DynamoDB API 엔드포인트의 DNS&lt;/em>&lt;/p>
&lt;p>&lt;strong>영향&lt;/strong>: IAM, DynamoDB 테이블을 포함한 US-EAST-1 엔드포인트에 의존하는 다른 서비스&lt;/p>
&lt;h2 id="장애-원인">장애 원인&lt;/h2>
&lt;p>해당 리전의 DynamoDB API 엔드포인트의 DNS에서 문제가 발생했다고 하는데 구체적으로 어떤 내용일까?&lt;/p>
&lt;blockquote>
&lt;p>Oct 20 2:01 AM PDT We have identified a potential root cause for error rates for the DynamoDB APIs in the US-EAST-1 Region. Based on our investigation, the issue appears to be related to DNS resolution of the DynamoDB API endpoint in US-EAST-1. We are working on multiple parallel paths to accelerate recovery.&lt;/p></description></item></channel></rss>