Compute and Edge

The Zero-Knowledge Edge: Offloading zk-SNARK Authentication to Alibaba Cloud CDN and Function Compute 3.0

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The Zero-Knowledge Edge Offloading zk-SNARK Authentication to Alibaba Cloud CDN and Function Compute 3.0

TLS termination is a foundational security practice, but it introduces an architectural vulnerability: at the point of termination, plaintext credentials reside in memory. Whether we are protecting a high-value SaaS control plane or securing an internationally deployed point-of-sale (POS) system handling sensitive merchant data across varying compliance zones, memory dumps, compromised load balancers, and supply … Read more

Architecting a Serverless WebSocket Fan-Out for Millions of Concurrent Users

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Architecting a Serverless WebSocket Fan-Out for Millions of Concurrent Users

In the high-stakes ecosystem of global cryptocurrency trading, latency is the enemy, and stale data is a fatal flaw. When Bitcoin surges or crashes, millions of active traders expect their dashboard tickers to update in real-time, simultaneously, without a perceived delay. Delivering a single backend pricing event to millions of connected web and mobile clients … Read more

The Level 1 SRE Agent: Autonomous FinOps Remediation with Qwen3-Max and OOS

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The Level 1 SRE Agent Autonomous FinOps Remediation with Qwen3-Max and OOS

If your organization is like most mature cloud adopters, your FinOps dashboards are a masterpiece of visibility. You have granular cost allocation, predictive forecasting, and real-time anomaly detection. Yet, at the end of every month, your cloud bill remains stubbornly high. Why? Because visibility is not remediation. We have successfully engineered alert fatigue into our … Read more

Defying Preemption: Sub-Millisecond LLM Checkpointing on Spot Instances with PAI and CPFS

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Defying Preemption Sub-Millisecond LLM Checkpointing on Spot Instances with PAI and CPFS

The mathematics of training Large Language Models (LLMs) are unforgiving. As parameter counts scale from the billions to the trillions, the financial barrier to entry has shifted from developer salaries to raw GPU compute hours. Provisioning a cluster of on-demand H800 or A100 instances for weeks of continuous pre-training will rapidly deplete the operational budget … Read more

Automating Deployments to Alibaba Cloud SAE with GitHub Actions

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Automating Deployments to Alibaba Cloud SAE with GitHub Actions

In our previous guides, we successfully containerized our Node.js RocketMQ consumer and deployed it to Alibaba Cloud Serverless App Engine (SAE), enabling it to auto-scale based on queue depth. However, logging into your terminal, manually building a Docker image, tagging it, pushing it to the Container Registry (ACR), and then clicking through the SAE console … Read more

How to Containerize and Auto-Scale a Node.js RocketMQ Consumer on Alibaba Cloud SAE

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How to Containerize and Auto-Scale a Node.js RocketMQ Consumer on Alibaba Cloud SAE

In our previous guides, we built a highly resilient, offline-first architecture. We created a Node.js consumer script designed to read delayed data from Alibaba Cloud RocketMQ and safely write it to a PolarDB database. However, running a script on a single static server (like an ECS instance) creates a dangerous bottleneck. When an internet shutdown … Read more

Designing a Cloud Architecture That Survives Internet Shutdowns

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Designing a Cloud Architecture That Survives Internet Shutdowns

In an increasingly hyper-connected world, the assumption is that the internet is always on. However, the reality is far more volatile. Whether due to severe natural disasters, catastrophic submarine cable cuts, or government-mandated regional internet shutdowns, connectivity can vanish in an instant. For businesses relying on continuous uptime, an entire region going offline isn’t just … Read more

Implementing a Resilient Node.js Producer for Alibaba Cloud RocketMQ

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Implementing a Resilient Node.js Producer for Alibaba Cloud RocketMQ

When your offline users finally reconnect to the network, your edge nodes are going to experience a sudden, massive influx of delayed data. If your system tries to write all this data directly to your primary database, it will likely crash. To survive this “thundering herd” scenario, your edge nodes must act as intelligent buffers. … Read more

Building a Resilient Node.js Consumer for Alibaba Cloud RocketMQ

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Building a Resilient Node.js Consumer for Alibaba Cloud RocketMQ

In our previous section “Implementing a Resilient Node.js Producer for Alibaba Cloud RocketMQ“, we built the edge-side Producer that catches offline-synced data and securely buffers it into Alibaba Cloud RocketMQ. Now, we need to build the central cloud’s engine: the Consumer. When the international gateways reopen and connectivity is restored, your RocketMQ topics will be … Read more