Cloud-Exit on Vonng

FastJSON Broke Again. Why?

rh@vonng.com (Ruohang Feng) — Fri, 31 Jul 2026 00:00:00 +0000

FastJSON has failed again. When is “ship rough, scale hard, move fast” a defensible shortcut, and when does it become an engineering habit whose bill falls to whoever comes next?

Huawei Cloud Incident: Was IAM Involved?

rh@vonng.com (Ruohang Feng) — Sun, 26 Jul 2026 00:00:00 +0000

Huawei Cloud confirmed abnormalities affecting some International Site accounts during a scheduled IAM upgrade window. The timing is suggestive, but the causal link remains unconfirmed.

Alibaba Cloud's 1 QPS DNS Limit Sent Me to Cloudflare

rh@vonng.com (Ruohang Feng) — Wed, 01 Jul 2026 00:00:00 +0000

Alibaba Cloud’s free DNS tier allows 100,000 queries per day—just 1.15 QPS averaged out. One throttling notice was all it took for me to move my domains to Cloudflare.

Xianyu, Qianwen, Alipay: Platform Trust 'Empowers' a Scam

rh@vonng.com (Ruohang Feng) — Mon, 15 Jun 2026 00:00:00 +0000

Scammers hijacked Qianwen’s trusted identity, then used a single Xianyu QR code to run a seamless phishing scam through official apps and trusted domains across Alibaba’s ecosystem. I hope this case helps more people avoid the same trap.

The Data Sovereignty Manifesto

rh@vonng.com (Ruohang Feng) — Fri, 10 Apr 2026 00:00:00 +0000

As data becomes the most important means of production in the AI age, platform lock-in and cloud dependence are rebuilding digital feudalism. This manifesto calls on us to reclaim control through open source and the ability to run our own infrastructure, so data can truly belong to its owners.

Your SaaS, Someone Else's Kill Switch

rh@vonng.com (Ruohang Feng) — Mon, 06 Apr 2026 00:00:00 +0000

Slack’s Greater China shutdown is a reminder: the biggest SaaS risk is not price, but having your business continuity depend on someone else’s business decisions.

Digoal, the Face of PostgreSQL at Alibaba Cloud, Has Left

rh@vonng.com (Ruohang Feng) — Thu, 02 Apr 2026 00:00:00 +0000

Alibaba Cloud’s leading PostgreSQL advocate has walked away, exposing a deeper struggle over the direction of China’s cloud database market.

When AI Gets the Power to Gridlock a City

rh@vonng.com (Ruohang Feng) — Wed, 01 Apr 2026 00:00:00 +0000

On the night of March 31, a large number of Apollo Go robotaxis in Wuhan failed at the same time. The real concern is not merely that autonomous driving failed, but that a centrally controlled, cloud-based architecture may amplify a single-vehicle failure into a city-scale systemic risk.

OpenClaw Broke npm Again: What Happens When You Ship Without Testing

rh@vonng.com (Ruohang Feng) — Wed, 25 Mar 2026 00:00:00 +0000

OpenClaw v2026.3.22 was published to npm without its web console frontend and related build assets. The bigger problem is not the packaging accident itself, but the complete absence of post-install verification in the release process.

Meituan Deleted Users' Photos: Overbroad Permissions Are Worse Than a Privacy Leak

rh@vonng.com (Ruohang Feng) — Tue, 24 Mar 2026 00:00:00 +0000

Many Android users reported that Meituan deleted files from their photo libraries. The bigger issue is not just this bug, but the still-common pattern of overbroad storage permissions in the Chinese Android ecosystem.

Tencent Cloud 'Reduced' the Lobster King's Load by 180 GB

rh@vonng.com (Ruohang Feng) — Thu, 12 Mar 2026 00:00:00 +0000

Tencent Cloud mirrored OpenClaw’s official skill marketplace into its own SkillHub and then claimed it was helping the upstream project. The incident turned into a case study in open-source manners, mirror ethics, and platform power.

Shockwaves at Alibaba Qwen: The Soul of the Team Walks Away

rh@vonng.com (Ruohang Feng) — Wed, 04 Mar 2026 00:00:00 +0000

Qwen lead Justin Lin publicly announced his departure, followed by more core-team exits and a wave of speculation about compute allocation, KPI pressure, and organizational power shifts inside Alibaba.

Claude's Global Outage: Missiles or a Success Tax?

rh@vonng.com (Ruohang Feng) — Tue, 03 Mar 2026 00:00:00 +0000

Claude went down globally on March 2, 2026. The cinematic theory blamed drone strikes on AWS in the Middle East, but the failure pattern points much more strongly to a front-end and authentication crunch triggered by explosive user growth.

Drones Took Out Three AWS AZ: Into the Era of Bombable Data Centers

rh@vonng.com (Ruohang Feng) — Tue, 03 Mar 2026 00:00:00 +0000

On March 1, 2026, Iranian drones reportedly hit AWS facilities in the UAE and Bahrain. If the reporting is accurate, this may be the first public case of a hyperscale cloud provider suffering direct military damage to data-center infrastructure.

Did RedNote Exit the Cloud?

rh@vonng.com (Ruohang Feng) — Fri, 26 Dec 2025 00:00:00 +0000

When a company that was “born on the cloud” goes “self-host first,” does that count as cloud exit? A repost of a deleted piece on the infrastructure coming-of-age for China’s internet giants.

Alipay, Taobao, Xianyu Went Dark. Smells Like a Message Queue Meltdown.

rh@vonng.com (Ruohang Feng) — Fri, 05 Dec 2025 00:00:00 +0000

Dec 4, 2025, Taobao, Alipay, and Xianyu all cratered. Users got charged while orders still showed “unpaid,” a carbon copy of the 2024 Double-11 fiasco.

Cloudflare’s Nov 18 Outage, Translated and Dissected

rh@vonng.com (Ruohang Feng) — Wed, 19 Nov 2025 00:00:00 +0000

A ClickHouse permission tweak doubled a feature file, tripped a Rust hard limit, and froze Cloudflare’s core traffic for six hours—their worst outage since 2019. Here’s the full translation plus commentary.

Alicloud “Borrowed” Supabase, the giant free loader

rh@vonng.com (Ruohang Feng) — Thu, 06 Nov 2025 00:00:00 +0000

Founders here get asked the same question over and over: what if Alibaba builds the same thing? Alicloud RDS just launched Supabase as a managed service. Exhibit A.

AWS’s Official DynamoDB Outage Postmortem

rh@vonng.com (Ruohang Feng) — Fri, 24 Oct 2025 00:00:00 +0000

AWS finally published the Oct 20 us-east-1 postmortem. I translated the key parts and added commentary on how one DNS bug toppled half the internet.

How One AWS DNS Failure Cascaded Across Half the Internet

rh@vonng.com (Ruohang Feng) — Tue, 21 Oct 2025 00:00:00 +0000

us-east-1’s DNS control plane faceplanted for 15 hours and dragged 142 AWS services—and a good chunk of the public internet—down with it. Here’s the forensic tour.

Column: Cloud-Exit

rh@vonng.com (Ruohang Feng) — Fri, 08 Aug 2025 00:00:00 +0000

A whole generation of developers has been told “cloud-first.” This column collects data, case studies, and commentary on the real economics—and traps—of public cloud rental models.

KubeSphere: Trust Crisis Behind Open-Source Supply Cut

rh@vonng.com (Ruohang Feng) — Sat, 02 Aug 2025 00:00:00 +0000

Deleting images and running away - this isn’t about commercial closed-source issues, but supply cut problems that directly destroy years of accumulated community trust.

Alicloud’s rds_duckdb: Tribute or Rip-Off?

rh@vonng.com (Ruohang Feng) — Thu, 06 Mar 2025 00:00:00 +0000

Does bolting DuckDB onto RDS suddenly make open-source Postgres ‘trash’? Business and open source should be symbiotic. If a vendor only extracts without giving back, the community will spit it out."

Escaping Cloud Computing Scam Mills: The Big Fool Paying for Pain

rh@vonng.com (Ruohang Feng) — Mon, 13 Jan 2025 00:00:00 +0000

A user consulted about distributed databases, but he wasn’t dealing with data bursting through server cabinet doors—rather, he’d fallen into another cloud computing pig-butchering scam.

OpenAI Global Outage Postmortem: K8S Circular Dependencies

rh@vonng.com (Ruohang Feng) — Sat, 14 Dec 2024 00:00:00 +0000

Even trillion-dollar unicorns can be a house of cards when operating outside their core expertise.

WordPress Community Civil War: On Community Boundary Demarcation

rh@vonng.com (Ruohang Feng) — Thu, 17 Oct 2024 00:00:00 +0000

When open source ideals meet commercial conflicts, what insights can this conflict between open source software communities and cloud vendors bring? On the importance of community boundary demarcation.

Cloud Database: Michelin Prices for Cafeteria Pre-made Meals

rh@vonng.com (Ruohang Feng) — Sun, 06 Oct 2024 00:00:00 +0000

The paradigm shift brought by RDS, whether cloud databases are overpriced cafeteria meals. Quality, security, efficiency, and cost analysis, cloud exit database self-building: how to implement in practice!

Alibaba-Cloud: High Availability Disaster Recovery Myth Shattered

rh@vonng.com (Ruohang Feng) — Tue, 17 Sep 2024 00:00:00 +0000

Seven days after Singapore Zone C failure, availability not even reaching 8, let alone multiple 9s. But compared to data loss, availability is just a minor issue

Amateur Hour Opera: Alibaba-Cloud PostgreSQL Disaster Chronicle

rh@vonng.com (Ruohang Feng) — Mon, 19 Aug 2024 00:00:00 +0000

A customer experienced an outrageous cascade of failures on cloud database last week: a high-availability PG RDS cluster went down completely - both primary and replica servers - after attempting a simple memory expansion, troubleshooting until dawn. Poor recommendations abounded during the incident, and the postmortem was equally perfunctory. I share this case study here for reference and review.

What Can We Learn from NetEase Cloud Music's Outage?

rh@vonng.com (Ruohang Feng) — Sun, 18 Aug 2024 00:00:00 +0000

NetEase Cloud Music experienced a two-and-a-half-hour outage this afternoon. Based on circulating online clues, we can deduce that the real cause behind this incident was…

Blue Screen Friday: Amateur Hour on Both Sides

rh@vonng.com (Ruohang Feng) — Tue, 23 Jul 2024 00:00:00 +0000

Both client and vendor failed to control blast radius, leading to this epic global security incident that will greatly benefit local-first software philosophy.

How Ahrefs Saved US$400M by NOT Going to the Cloud

rh@vonng.com (Ruohang Feng) — Wed, 22 May 2024 00:00:00 +0000

After Alibaba-Cloud’s epic global outage on Double 11, setting industry records, how should we evaluate this incident and what lessons can we learn from it?

Database Deletion Supreme - Google Cloud Nuked a Major Fund's Entire Cloud Account

rh@vonng.com (Ruohang Feng) — Sat, 11 May 2024 00:00:00 +0000

Due to an “unprecedented configuration error,” Google Cloud mistakenly deleted trillion-RMB fund giant UniSuper’s entire cloud account, cloud environment and all off-site backups, setting a new record in cloud computing history!

Cloud Dark Forest: Exploding Cloud Bills with Just S3 Bucket Names

rh@vonng.com (Ruohang Feng) — Tue, 30 Apr 2024 00:00:00 +0000

The dark forest law has emerged on public cloud: Anyone who knows your S3 object storage bucket name can explode your cloud bill.

Cloudflare Roundtable Interview and Q&A Record

rh@vonng.com (Ruohang Feng) — Tue, 23 Apr 2024 00:00:00 +0000

As a roundtable guest, I was invited to participate in Cloudflare’s Immerse conference in Shenzhen. During the dinner, I had in-depth discussions with Cloudflare’s APAC CMO, Greater China Technical Director, and front-line engineers about many questions of interest to netizens.

What Can We Learn from Tencent Cloud's Major Outage?

rh@vonng.com (Ruohang Feng) — Sun, 14 Apr 2024 00:00:00 +0000

Tencent Cloud’s epic global outage after Double 11 set industry records. How should we evaluate and view this failure, and what lessons can we learn from it?

Cloudflare - The Cyber Buddha That Destroys Public Cloud

rh@vonng.com (Ruohang Feng) — Wed, 03 Apr 2024 00:00:00 +0000

While I’ve always advocated for cloud exit, if it’s about adopting a cyber bodhisattva cloud like Cloudflare, I’m all in with both hands raised.

Can Luo Yonghao Save Toothpaste Cloud?

rh@vonng.com (Ruohang Feng) — Mon, 01 Apr 2024 00:00:00 +0000

Luo Yonghao’s livestream first spent half an hour selling robot vacuums, then Luo himself belatedly appeared to read scripts selling “cloud computing” for forty minutes — before seamlessly transitioning to selling Colgate enzyme-free toothpaste — leaving viewers bewildered between toothpaste and cloud computing.

Analyzing Alibaba-Cloud Server Computing Cost

rh@vonng.com (Ruohang Feng) — Sun, 10 Mar 2024 00:00:00 +0000

Alibaba-Cloud claimed major price cuts, but a detailed analysis of cloud server costs reveals that cloud computing and storage remain outrageously expensive.

Will DBAs Be Eliminated by Cloud?

rh@vonng.com (Ruohang Feng) — Fri, 02 Feb 2024 00:00:00 +0000

Two days ago, the ninth episode of Open-Source Talks had the theme “Will DBAs Be Eliminated by Cloud?” As the host, I restrained myself from jumping into the debate throughout, so I’m writing this article to discuss this question: Will DBAs be eliminated by cloud?

Cloud-Exit High Availability Secret: Rejecting Complexity Masturbation

rh@vonng.com (Ruohang Feng) — Wed, 10 Jan 2024 00:00:00 +0000

Programmers are drawn to complexity like moths to flame. The more complex the system architecture diagram, the greater the intellectual masturbation high. Steadfast resistance to this behavior is a key reason for DHH’s success in cloud-free availability.

S3: Elite to Mediocre

rh@vonng.com (Ruohang Feng) — Tue, 26 Dec 2023 00:00:00 +0000

S3 is no longer “cheap” with the evolution of hardware, and other challengers such as cloudflare R2.

From Cost-Reduction Jokes to Real Cost Reduction and Efficiency

rh@vonng.com (Ruohang Feng) — Wed, 29 Nov 2023 00:00:00 +0000

Alibaba-Cloud and Didi had major outages one after another. This article discusses how to move from cost-reduction jokes to real cost reduction and efficiency — what costs should we really reduce, what efficiency should we improve?

Reclaim Hardware Bonus from the Cloud

rh@vonng.com (Ruohang Feng) — Thu, 16 Nov 2023 00:00:00 +0000

Hardware is interesting again, developments in CPUs and SSDs remain largely unnoticed by the majority of devs. A whole generation of developers is obscured by cloud hype and marketing noise.

What Can We Learn from Alibaba-Cloud's Global Outage?

rh@vonng.com (Ruohang Feng) — Mon, 13 Nov 2023 00:00:00 +0000

Alibaba-Cloud’s epic global outage after Double 11 set an industry record. How should we evaluate this incident, and what lessons can we learn from it?

Harvesting Alibaba-Cloud Wool, Building Your Digital Homestead

rh@vonng.com (Ruohang Feng) — Wed, 08 Nov 2023 00:00:00 +0000

Alibaba-Cloud’s Double 11 offered a great deal: 2C2G3M ECS servers for ¥99/year, low price for three years. This article shows how to use this decent ECS to build your own digital homestead.

Cloud Computing Mudslide: Deconstructing Public Cloud with Data

rh@vonng.com (Ruohang Feng) — Sat, 08 Jul 2023 00:00:00 +0000

Once upon a time, “going to cloud” was almost politically correct in tech circles, but few people use hard data to analyze the trade-offs involved. I’m willing to be this skeptic: let me use hard data and personal stories to explain the traps and value of public cloud rental models.

DHH: Cloud-Exit Saves Over Ten Million, More Than Expected!

rh@vonng.com (Ruohang Feng) — Fri, 07 Jul 2023 00:00:00 +0000

DHH migrated their seven cloud applications from AWS to their own hardware. 2024 is the first year of full savings realization. They’re delighted to find the savings exceed initial estimates.

FinOps: Endgame Cloud-Exit

rh@vonng.com (Ruohang Feng) — Thu, 06 Jul 2023 00:00:00 +0000

At the SACC 2023 FinOps session, I fiercely criticized cloud vendors. This is a transcript of my speech, introducing the ultimate FinOps concept — Cloud-Exit and its implementation path.

Why Isn't Cloud Computing More Profitable Than Sand Mining?

rh@vonng.com (Ruohang Feng) — Wed, 14 Jun 2023 00:00:00 +0000

Public cloud margins worse than sand mining—why are pig-butchering schemes losing money? Resource-selling models heading toward price wars, open source alternatives breaking monopoly dreams! Service competitiveness gradually neutralized—where is the cloud computing industry heading? How did domestic cloud vendors make a business with 30-40% pure profit less profitable than sand mining?

SLA: Placebo or Insurance?

rh@vonng.com (Ruohang Feng) — Mon, 12 Jun 2023 00:00:00 +0000

SLA is a marketing tool rather than insurance. In the worst-case scenario, it’s an unavoidable loss; at best, it provides emotional comfort.

EBS: Pig Slaughter Scam

rh@vonng.com (Ruohang Feng) — Wed, 15 Mar 2023 00:00:00 +0000

The real business model of cloud: “Cheap” EC2/S3 to attract customers, and fleece with “Expensive” EBS/RDS

Garbage QCloud CDN: From Getting Started to Giving Up?

rh@vonng.com (Ruohang Feng) — Wed, 08 Mar 2023 00:00:00 +0000

I originally believed that at least in IaaS fundamentals — storage, compute, and networking — public cloud vendors could still make significant contributions. However, my personal experience with Tencent Cloud CDN shook that belief: domestic cloud vendors’ products and services are truly unbearable.

Refuting "Why You Still Shouldn't Hire a DBA"

rh@vonng.com (Ruohang Feng) — Wed, 01 Mar 2023 00:00:00 +0000

Guo Degang has a comedy routine: “Say I tell a rocket scientist, your rocket is no good, the fuel is wrong. I think it should burn wood, better yet coal, and it has to be premium coal, not washed coal. If that scientist takes me seriously, he loses.”

Paradigm Shift: From Cloud to Local-First

rh@vonng.com (Ruohang Feng) — Fri, 03 Feb 2023 00:00:00 +0000

Cloud databases’ exorbitant markups—sometimes 10x or more—are undoubtedly a scam for users outside the applicable spectrum. But we can dig deeper: why are public clouds, especially cloud databases, like this? And based on their underlying logic, make predictions about the industry’s future.

Are Cloud Databases an IQ Tax?

rh@vonng.com (Ruohang Feng) — Mon, 30 Jan 2023 00:00:00 +0000

Winter is coming, tech giants are laying off workers entering cost-reduction mode. Can cloud databases, the number one public cloud cash cow, still tell their story? The money you spend on cloud databases for one year is enough to buy several or even dozens of higher-performing servers. Are you paying an IQ tax by using cloud databases?

Cloud RDS: From Database Drop to Exit

rh@vonng.com (Ruohang Feng) — Tue, 10 May 2022 00:00:00 +0000

I recently witnessed a live cloud database drop-and-run incident. This article discusses how to handle accidentally deleted data when using PostgreSQL in production environments.

Is DBA Still a Good Job?

rh@vonng.com (Ruohang Feng) — Tue, 10 May 2022 00:00:00 +0000

Ant Financial had a self-deprecating joke: besides regulation, only DBAs could bring down Alipay. Although DBA sounds like a profession with glorious history and dim prospects, who knows if it might become trendy again after a few terrifying major cloud database incidents?