# Elastic Cloud January 18, 2019 Incident Report

- **期号**: SRE Weekly Issue #213（2020-03-29）
- **作者**: Panagiotis Moustafellos, Uri Cohen, and Sylvain Wallez — Elastic
- **链接**: https://www.elastic.co/blog/elastic-cloud-january-18-2019-incident-report

## 简介

Grey failure turned a seemingly reasonable auto-recovery mechanism into a DoS caused by a thundering herd.

## 正文

# Blog

![Videos](https://images.contentstack.io/v3/assets/bltefdd0b53724fa2ce/blt092b27ada9dd7903/6aa038ed37d7f37eb38eb219/Blog-Header-for-ElasticON-Kickoff-Blog-720x420px.png)

Elastic{ON} kicks off this September with seven stops in cities around the world. Elastic’s CEO Ash Kulkarni will be appearing at stops across the tour, opening keynotes with a candid conversation about why your data has never been more valuable.

#### Top stories

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![](<https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt91d3f9b077793afb/6a6b32848b9d524c2c1f3ab7/partners-OpenAI_(1)_(1).png>)

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![](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt06b80eb6b39592e6/6a68e60caacc0d215b0b13f9/9.5-blog.png)

## Solutions

[See all in solutions](https://www.elastic.co/blog/category/solutions)

![Videos](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt6f0dcbf444da0368/6a84581a06e3dd7205fe2323/idc-foundry-blog.jpg)

#### From retrieval to agents: 5 takeaways on production architecture for AI agents

As enterprises transition from search-driven experiences to agentic AI, requirements are shifting. Learn how context engineering and retrieval layers are now more critical for building trustworthy, production-ready AI agents.

![Videos](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt3d34bd589a40f2bd/6a99844dd29b4e29381d864e/kevin-horvat-Pyjp2zmxuLk-unsplash.jpg)

![Videos](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blta106b56a59898f4c/6a95e111ecbe18e3881e2014/levi-loot-1l0dOhOPeyQ-unsplash.jpg)

## Elastic Stack + Cloud

[See all in Elastic Stack + Cloud](https://www.elastic.co/blog/category/stack-cloud)

![](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt1205b85411e3989b/6a8f2b3a0a3bbe4d6959dd07/pedro-lastra-Nyvq2juw4_o-unsplash.jpg)

![](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blta15262f936172268/6a714ea20c5aa94fbdf8672a/azure-privatelink.png)

![](<https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/bltf72c6b638b40d122/6a678277b08d724f54bb7c90/Blog_image_Elastic_Cloud_Serverless_Region_Expansion_V1_(1).png>)

![](<https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blta416df1cbcf21634/6a3aea7243be6af15dc5f829/underdefense-partner-blog_(1).png>)

### How migrating to Elastic Security helped a digital safety software company cut incidents by 85% with UnderDefense

UnderDefense, an Elastic partner, migrated a two-person security team from a noisy legacy QRadar to Elastic Security on AWS, cutting incident volume 85%, reducing MTTR 61%, and delivering audit-ready retention with 25 purpose-built dashboards.

## Customers

[See all in customers](https://www.elastic.co/blog/category/customers)

![](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blta2b6d0b4202545c1/6a8706babed19d9473af9d00/towfiqu-barbhuiya-nApaSgkzaxg-unsplash.jpg)

An independent IDC study found organizations deploying the Elasticsearch Platform for enterprise search and agentic AI deliver AI products faster, drive higher revenue, boost productivity, and strengthen operational resilience across the business.

![](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt47aebed2068f2022/6a1f215838ecc5c4cfe3e9cf/Elastic_Observability_-_Image_2.2.png)

![](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt5df4af6669051200/6a0db926c9bda14c59ca0299/photo-1480944657103-7fed22359e1d.avif)

![](<https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/blt3372178bb75f8832/69c16cd4d2164c4776658001/UNIHACK-blog_(1)_(1).png>)

Elastic sponsored UNIHACK 2026, where over 50 teams used Elasticsearch and vector databases to move beyond basic LLMs into professional AI workflows. Projects used hybrid search and geospatial data to deliver scalable solutions for complex problems.

## Culture

[See all in culture](https://www.elastic.co/blog/category/culture)

![](<https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/bltafe75c12a90c4563/6a58ed2442ffaa6a5dbecd9d/header-blog-Elastic’s-guide-to-AI-in-the-interview-process-Blog-r2_(1).png>)

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![](<https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/bltb9d5e53fd0242d26/6a285bac431e1803bcc4b298/ERGs-blog_(1).png>)

![](https://static-www.elastic.co/v3/assets/bltefdd0b53724fa2ce/bltdbbd58cb60b196c7/69f24db85ab0e424f13bcbd3/image3.jpg)