
Cloud-Exiter
Ruohang Feng @Vonng
Stop paying the cloud tax and self-host like a pro — deep dives, cost analyses and incident write-ups.

KubeSphere: Trust Crisis Behind Open-Source Supply Cut
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?
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
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
Even trillion-dollar unicorns can be a house of cards when operating outside their core expertise.

WordPress Community Civil War: On Community Boundary Demarcation
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 …

Cloud Database: Michelin Prices for Cafeteria Pre-made Meals
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 …

Alibaba-Cloud: High Availability Disaster Recovery Myth Shattered
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
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 …

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

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

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

Analyzing Alibaba-Cloud Server Computing Cost
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?
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 …

Cloud-Exit High Availability Secret: Rejecting Complexity Masturbation
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 …

S3: Elite to Mediocre
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
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, …

Reclaim Hardware Bonus from the Cloud
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?
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?
KubeSphere: Trust Crisis Behind Open-Source Supply Cut

KubeSphere Sudden Supply Cut: When Open-Source Trust Gets “Unplugged” A “Run” That Shocked the Cloud Native Circle The day before yesterday, QingCloud announced KubeSphere open source edition stops downloads and support, requiring users to migrate …
KubeSphere Sudden Supply Cut: When Open-Source Trust Gets “Unplugged” A “Run” That Shocked the Cloud Native Circle The day before yesterday, QingCloud announced KubeSphere open source edition stops downloads and support, requiring users to migrate …
Alicloud’s rds_duckdb: Tribute or Rip-Off?

A viral post titled “Heavenly ‘PostgreSQL’ Calls Earthly Postgres ‘Little Trash’” hyped up Alicloud RDS’s new rds_duckdb plugin for OLAP and declared that managed RDS PG is noble while open-source Postgres is garbage. That take is ridiculous. I know …
A viral post titled “Heavenly ‘PostgreSQL’ Calls Earthly Postgres ‘Little Trash’” hyped up Alicloud RDS’s new rds_duckdb plugin for OLAP and declared that managed RDS PG is noble while open-source Postgres is garbage. That take is ridiculous. I know …
Escaping Cloud Computing Scam Mills: The Big Fool Paying for Pain

This article comes from a real consultation case. Any resemblance to your situation is purely due to cloud vendors’ deep affinity with your wallet. Yesterday a user came to consult, asking if PostgreSQL distributed database extension Citus has any …
This article comes from a real consultation case. Any resemblance to your situation is purely due to cloud vendors’ deep affinity with your wallet. Yesterday a user came to consult, asking if PostgreSQL distributed database extension Citus has any …
OpenAI Global Outage Postmortem: K8S Circular Dependencies

On December 11th, OpenAI experienced a global service outage affecting ChatGPT, API, Sora, Playground, and Labs. The outage lasted from 3:16 PM to 7:38 PM PT, spanning over four hours with significant impact. According to OpenAI’s incident report …
On December 11th, OpenAI experienced a global service outage affecting ChatGPT, API, Sora, Playground, and Labs. The outage lasted from 3:16 PM to 7:38 PM PT, spanning over four hours with significant impact. According to OpenAI’s incident report …
WordPress Community Civil War: On Community Boundary Demarcation

“I want to be blunt: for years, we’ve been like fools while they made a fortune off what we developed.” — This famous quote from Redis Labs CEO Ofer Bengal has become a vivid footnote to the WordPress community civil war and the conflict between open …
“I want to be blunt: for years, we’ve been like fools while they made a fortune off what we developed.” — This famous quote from Redis Labs CEO Ofer Bengal has become a vivid footnote to the WordPress community civil war and the conflict between open …
Cloud Database: Michelin Prices for Cafeteria Pre-made Meals

Are cloud databases overpriced cafeteria meals The paradigm shift brought by RDS Quality, security, efficiency, and cost analysis, Cloud exit database self-building: how to implement in practice! TL;DR From commercial software to open source software …
Are cloud databases overpriced cafeteria meals The paradigm shift brought by RDS Quality, security, efficiency, and cost analysis, Cloud exit database self-building: how to implement in practice! TL;DR From commercial software to open source software …
Alibaba-Cloud: High Availability Disaster Recovery Myth Shattered

On September 10, 2024, Alibaba-Cloud’s Singapore Availability Zone C data center experienced a fire caused by lithium battery explosion. It’s been a week now and services have not been fully restored yet. According to the monthly SLA availability …
On September 10, 2024, Alibaba-Cloud’s Singapore Availability Zone C data center experienced a fire caused by lithium battery explosion. It’s been a week now and services have not been fully restored yet. According to the monthly SLA availability …
Amateur Hour Opera: Alibaba-Cloud PostgreSQL Disaster Chronicle

In “Are Cloud Databases an IQ Tax”, I evaluated cloud database RDS as: “selling sky-high pre-made meals at five-star hotel prices” — but legitimate pre-made meals from industrial kitchens are at least edible and generally won’t kill you. However, a …
In “Are Cloud Databases an IQ Tax”, I evaluated cloud database RDS as: “selling sky-high pre-made meals at five-star hotel prices” — but legitimate pre-made meals from industrial kitchens are at least edible and generally won’t kill you. However, a …
What Can We Learn from NetEase Cloud Music's Outage?

This afternoon around 14:44, NetEase Cloud Music experienced an outage, recovering at 17:11. The rumored cause was infrastructure/cloud/ disk storage related issues. Incident Timeline During the outage, NetEase Cloud Music clients could normally play …
This afternoon around 14:44, NetEase Cloud Music experienced an outage, recovering at 17:11. The rumored cause was infrastructure/cloud/ disk storage related issues. Incident Timeline During the outage, NetEase Cloud Music clients could normally play …
Blue Screen Friday: Amateur Hour on Both Sides

Recently, due to a configuration update released by cybersecurity company CrowdStrike, countless Windows computers worldwide fell into blue screen death, causing endless chaos — airlines grounded flights, hospitals canceled surgeries, supermarkets, …
Recently, due to a configuration update released by cybersecurity company CrowdStrike, countless Windows computers worldwide fell into blue screen death, causing endless chaos — airlines grounded flights, hospitals canceled surgeries, supermarkets, …
How Ahrefs Saved US$400M by NOT Going to the Cloud

Original: How Ahrefs Saved US$400M in 3 Years by NOT Going to the Cloud Cloud computing has been very popular in the IT infrastructure space recently, with going to the cloud becoming a trend. Infrastructure as a Service (IaaS) clouds do have many …
Original: How Ahrefs Saved US$400M in 3 Years by NOT Going to the Cloud Cloud computing has been very popular in the IT infrastructure space recently, with going to the cloud becoming a trend. Infrastructure as a Service (IaaS) clouds do have many …
Database Deletion Supreme - Google Cloud Nuked a Major Fund's Entire Cloud Account

Due to an “unprecedented configuration error”, Google Cloud mistakenly deleted UniSuper’s cloud account. The Australian pension fund executive and Google Cloud’s global CEO issued a joint statement apologizing for this “extremely frustrating and …
Due to an “unprecedented configuration error”, Google Cloud mistakenly deleted UniSuper’s cloud account. The Australian pension fund executive and Google Cloud’s global CEO issued a joint statement apologizing for this “extremely frustrating and …
Cloud Dark Forest: Exploding Cloud Bills with Just S3 Bucket Names

The dark forest law has emerged on public cloud: Anyone who knows your S3 object storage bucket name can explode your cloud bill. Imagine this: you create an empty, private AWS S3 storage bucket in your favorite region. What would your AWS bill look …
The dark forest law has emerged on public cloud: Anyone who knows your S3 object storage bucket name can explode your cloud bill. Imagine this: you create an empty, private AWS S3 storage bucket in your favorite region. What would your AWS bill look …
Cloudflare Roundtable Interview and Q&A Record

Last week, I was invited as a roundtable guest to participate in Cloudflare’s Immerse conference in Shenzhen. During the Cloudflare Immerse cocktail party and dinner, I had in-depth discussions with Cloudflare’s APAC CMO, Greater China Technical …
Last week, I was invited as a roundtable guest to participate in Cloudflare’s Immerse conference in Shenzhen. During the Cloudflare Immerse cocktail party and dinner, I had in-depth discussions with Cloudflare’s APAC CMO, Greater China Technical …
What Can We Learn from Tencent Cloud's Major Outage?

Eight days after the outage, Tencent Cloud published a postmortem report for the April 8th major outage. I think this is a good thing, because Alibaba-Cloud’s Double 11 major outage official postmortem is still overdue. If public cloud vendors want …
Eight days after the outage, Tencent Cloud published a postmortem report for the April 8th major outage. I think this is a good thing, because Alibaba-Cloud’s Double 11 major outage official postmortem is still overdue. If public cloud vendors want …
Cloudflare - The Cyber Buddha That Destroys Public Cloud

At today’s 2024 Developer Week, Cloudflare released a series of exciting new features, such as Python Workers and Workers AI, elevating the convenience of application development and delivery to an entirely new level. Compared to Cloudflare’s …
At today’s 2024 Developer Week, Cloudflare released a series of exciting new features, such as Python Workers and Workers AI, elevating the convenience of application development and delivery to an entirely new level. Compared to Cloudflare’s …
Can Luo Yonghao Save Toothpaste Cloud?

Luo Yonghao was once a brilliant digital product manager with decent IT industry credentials. But as they say, there’s a world of difference between industries. Luo selling cloud is like a street vendor simultaneously hawking meat, vegetables, eggs, …
Luo Yonghao was once a brilliant digital product manager with decent IT industry credentials. But as they say, there’s a world of difference between industries. Luo selling cloud is like a street vendor simultaneously hawking meat, vegetables, eggs, …
Analyzing Alibaba-Cloud Server Computing Cost

On Crazy Thursday, February 29, 2024, Alibaba-Cloud staged a major price cut, with promotional content flying everywhere. As the cloud computing mudslide, many followers asked me to comment. The flashy 20%, 50% off banners look impressive, but …
On Crazy Thursday, February 29, 2024, Alibaba-Cloud staged a major price cut, with promotional content flying everywhere. As the cloud computing mudslide, many followers asked me to comment. The flashy 20%, 50% off banners look impressive, but …
Will DBAs Be Eliminated by Cloud?

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 …
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 …
Cloud-Exit High Availability Secret: Rejecting Complexity Masturbation

We don’t need Kubernetes masters or fancy new databases — programmers are drawn to complexity like moths to flame. The more complex the system architecture diagram, the greater the intellectual masturbation high. Our steadfast resistance to this …
We don’t need Kubernetes masters or fancy new databases — programmers are drawn to complexity like moths to flame. The more complex the system architecture diagram, the greater the intellectual masturbation high. Our steadfast resistance to this …
S3: Elite to Mediocre

WeChat Object storage (S3) has been a defining service of cloud computing, once hailed as a paragon of cost reduction in the cloud era. Unfortunately, with the evolution of hardware and the emergence of resources cloud (Cloudflare R2) and …
WeChat Object storage (S3) has been a defining service of cloud computing, once hailed as a paragon of cost reduction in the cloud era. Unfortunately, with the evolution of hardware and the emergence of resources cloud (Cloudflare R2) and …
From Cost-Reduction Jokes to Real Cost Reduction and Efficiency

Year-end is performance rush time, but internet giants are having major incidents one after another. They’ve turned “cost reduction and efficiency improvement” into literal “cost reduction jokes” — this is no longer just a meme, but official …
Year-end is performance rush time, but internet giants are having major incidents one after another. They’ve turned “cost reduction and efficiency improvement” into literal “cost reduction jokes” — this is no longer just a meme, but official …
Reclaim Hardware Bonus from the Cloud

Hardware is interesting again, with the AI wave fueling a GPU frenzy. However, the intrigue isn’t limited to GPUs —— developments in CPUs and SSDs remain largely unnoticed by the majority of devs. A whole generation of developers is obscured by cloud …
Hardware is interesting again, with the AI wave fueling a GPU frenzy. However, the intrigue isn’t limited to GPUs —— developments in CPUs and SSDs remain largely unnoticed by the majority of devs. A whole generation of developers is obscured by cloud …
What Can We Learn from Alibaba-Cloud's Global Outage?

A year after the last major incident, Alibaba-Cloud suffered another massive outage, creating an unprecedented record in the cloud computing industry — simultaneous failures across all global regions and all services. Since Alibaba-Cloud refuses to …
A year after the last major incident, Alibaba-Cloud suffered another massive outage, creating an unprecedented record in the cloud computing industry — simultaneous failures across all global regions and all services. Since Alibaba-Cloud refuses to …
