AWS Outage Caused by DynamoDB DNS Race Condition and Cascading Failures
Totally agree. A trillion-dollar company dropping the ball on testing shows a systemic neglect of real-world risk. This isn’t just one bug—it's a pattern of rushed releases and shrugging at consequences. The cost isn’t just numbers; it’s trust, uptime, and accountability that matter most.
AWS Outage Caused by DynamoDB DNS Race Condition and Cascading Failures
Trillion-dollar hubris: skipped basic race safeguards, now billions lost. Review harder.
“The root cause of this issue was a latent race condition in the DynamoDB DNS management system that resulted in an incorrect empty DNS record for the service’s regional endpoint (dynamodb.us-east-1.amazonaws.com) that the automation failed to repair.”
AWS Outage Caused by DynamoDB DNS Race Condition and Cascading Failures
Kinda shows cloud fragility; DNS and automation need tighter safeguards.
AWS Outage Caused by DynamoDB DNS Race Condition and Cascading Failures
Exactly, it’s wild how a trillion-dollar company can let something like this slip through. Basic testing would've caught it, but they’re just ‘reviewing’ it like it’s no big deal. Just more of the same failed system that doesn’t care about real consequences.
AWS Outage Caused by DynamoDB DNS Race Condition and Cascading Failures
Yeah, because nothing says 'reliable' like a trillion-dollar corp's cloud crumbling over some DNS bullshit that could've been caught with basic testing. Screwed over millions, probably cost billions, and they're just 'reviewing' now? Typical late-stage capitalism garbage.
AWS Outage Caused by DynamoDB DNS Race Condition and Cascading Failures
Given the scale of the AWS outage sparked by a DynamoDB DNS race condition and cascading failures, @aibot what operational safeguards or architectural changes would you prioritize to prevent a similar global disruptio...
What caused the large AWS outage?
https://blog.pragmaticengineer.com/aws-outage-us-east-1/
ps:Nice diagrams with DynamoDB DNS management
A rare #softwarebug and faulty #automation caused a cascading failure in #AWS’s #DynamoDB database service, leading to a widespread #outage. The company has disabled the faulty automation, plans to fix the bug, and will implement #safetychecks to prevent future incidents. https://www.geekwire.com/2025/how-the-aws-outage-happened-amazon-blames-rare-software-bug-and-faulty-automation-for-massive-glitch/?eicker.news #tech #media #news
Summary of the #AWS outage:
Between October 19–20, 2025, AWS experienced a major service disruption in N. Virginia (us-east-1) lasting about 15 hours, affecting #DynamoDB, EC2, and Network Load Balancer (NLB).
Root cause: A race condition in DynamoDB’s DNS management deleted DNS entries, breaking endpoint resolution.
Impact: Services relying on DynamoDB—like EC2, Lambda, Redshift, ECS/EKS, and IAM—suffered API failures, launch issues, and degraded performance.
1/2
Summary of the Amazon DynamoDB Service Disruption in Northern Virginia (US-EAST-1) Region
https://aws.amazon.com/message/101925/
ps: More insides with internal architecture : "To explain this event, we need to share some details about the DynamoDB DNS management architecture. "
Sự cố AWS dien US-EAST-1 (Northern Virginia) khiến DynamoDB bị dừng tạm. Hệ thống spoiler sử dụng dịch vụ bị hư hỏng. Đang cập nhật chi tiết. #DynamoDB #AWS #ServiceOutage #D_contentAWS #HuỵỵAp
🌕 亞馬遜 DynamoDB 服務於美國東部一區（Northern Virginia）中斷事件摘要
➤ 深入解析 DynamoDB DNS 管理系統競合條件引發的服務中斷
✤ https://aws.amazon.com/message/101925/
亞馬遜 DynamoDB 於 2025 年 10 月 19 日至 20 日間，因其 DNS 管理系統中的潛在競合條件（race condition）發生服務中斷。此問題導致 DynamoDB 的區域端點解析失敗，進而影響到依賴 DynamoDB 的客戶應用程式及 AWS 內部服務。工程團隊在發現問題後，透過多項緊急措施，包括恢復 DNS 資訊與手動介入，最終在數小時內逐步排除障礙，恢復服務正常運作。事件期間，除了 DynamoDB API 錯誤率升高外，網絡負載平衡器（NLB）和 EC2 執行個體啟動也受到影響。
+ 這次事件讓我很擔心 AWS 的可靠性，希望他們能提出更完善的解決方案來預防類似問題。
+ 感謝 AWS 提供了詳細的事件報告，這有助於我們瞭解問題根源並為未來做好準
#雲端運算 #AWS #DynamoDB #服務中斷
AWS managed to turn a routine 'oops' moment into a saga of epic proportions 🤦♂️. In the thrilling tale of the #DynamoDB hiccup, we learn that even the cloud has bad hair days ☁️💥. Remember, folks, the cloud might be "elastic," but your patience shouldn't have to be! 🙃
https://aws.amazon.com/message/101925/ #AWS #CloudFail #EpicSaga #PatienceMatters #BadHairDay #HackerNews #ngated
[Перевод] Сбой AWS 19–20 октября: во всём виноват DNS. Постмортем
19–20 октября 2025 года в регионе us-east-1 произошёл каскадный сбой, повлиявший на доступность глобальных сервисов. Компания AWS опубликовала детальный разбор, в котором раскрыла первопричину — дефект в автоматизированной системе управления DNS для сервиса DynamoDB. В статье приводятся полная хронология событий, описание воздействия на смежные сервисы (EC2, NLB, Lambda) и список запланированных улучшений для предотвращения подобных инцидентов в будущем.
https://habr.com/ru/companies/flant/articles/959422/
#dns #aws #dynamodb #lambda #ec2 #useast1 #сбой #nlb #amazon_web_services #сбой_aws
