TRANSPARENCY IN DISTRIBUTED SYSTEMS
The transparency of distributed systems conceals underlying complexity, enhancing user experience but also posing challenges for management and troubleshooting. Consistency algorithms, reasonable architecture, and observability are needed to optimize them.
A COMPREHENSIVE GUIDE FOR AWS ELASTIC LOAD BALANCER
AWS Elastic Load Balancer offers ALB, NLB, and GWLB for web traffic, high-throughput connections, and security inspection. It enhances system availability, scalability, and security, making it essential for traffic management, performance optimization, and multi-AZ deployments. Choosing the right load balancer ensures a stable, efficient, and resilient cloud architecture.
ULTIMATE MONEY-SAVING TIPS FOR AWS EC2 SPOT INSTANCES & SPOT FLEET
Recently, while preparing for AWS SAA certification, I studied AWS Spot Instance-related concepts in depth. This article summarizes how to use AWS Spot Instances to reduce computing costs by 70%-90%. By leveraging Auto Scaling Groups, Spot Fleet, and price monitoring strategies, you can enhance stability and optimize costs, making cloud computing more cost-effective.
MASTERING NETWORK COMMAND-LINE TOOLS: A PRACTICAL GUIDE
Network troubleshooting and diagnostics are essential for system administrators, developers, and network enthusiasts. Understanding how to retrieve system information, query DNS records, analyze network connections, and inspect packet details is crucial. This blog will introduce various Linux network command-line tools based on practical experiments.
PITFALLS ENCOUNTERED WHEN INITIALIZING A KUBERNETES CLUSTER
Recently, I encountered a bizarre issue while initializing a k8s cluster with kubeadm: my kube-proxy Pod kept restarting. This problem cost me an afternoon. I checked the Events of the Pod, the Log, the usage limit of the node, the compatibility of the CNI plug-ins, almost everything. The error message was quite simple; it wasn’t even an Error, just a Warning, saying that the Sandbox had changed and hence, it would exit gracefully. The specific prompt was Pod sandbox changed, it will be killed and re-created.
UNIVERSAL GUIDE TO DEBUGGING USER-DATA ON LINUX CLOUD INSTANCES
Introduction In the cloud computing environment, Cloud-init is a powerful tool that can automatically configure instances when a virtual machine or container is first started. It is used in almost all cloud computing products on the market. User data is an important function in Cloud-init. Through the user-data file, we can define the configuration of the instance, such as setting SSH keys, installing software packages, configuring the network, etc. However, when the configuration in the user-data file does not take effect or there is a problem, how to debug becomes particularly important.
DEMYSTIFYING CONSUMER-DRIVEN CONTRACT TESTING: THE SECRET WEAPON FOR IMPROVING SOFTWARE QUALITY
Quick Overview With this blog, you can learn: What problems contract testing solves Key concepts of consumer-driven contract testing The mechanics of running a consumer-driven contract test What is Broker for Contract Testing and what is it used for Code practices using PactFlow, based on Springboot and Kotlin You can’t learn: Provider-driven contract testing Dual-end driven contract testing Contract testing for message queues Whatever, the knowledge is all connected. After learning about consumer-driven contractual tests, I’m sure you’ll be able to get up to speed quickly with other types of contract tests : )
PROMPT ENGINEERING: A SCIENTIFIC GUIDE TO USING GENERATIVE AI
Preface The field of Artificial Intelligence is full of big models, combined with the use of various AI tools in the last six months (ChatGPT, Claude-Instant, PaLM, Midjourney).Each of us should keep an eye on developments in the field of AI, as AI can be used to automate tasks that you are spending countless hours doing right now. What is prompt engineering The prompt engineering is an input style guide for interacting with generative AI tools.
SRCUM FRAMEWORK FOR AGILE DEVELOPMENT - A LIGHTWEIGHT GUIDE TO THE SCRUM PROCESS
What is Scrum Let’s take a look at the official definition: Scrum is a framework that helps teams work together. Like a rugby team training for a big game, Scrum encourages teams to learn through experience, to self-organize while solving problems, and to reflect on their wins and losses in order to continually improve. While Scrum is most commonly used by software development teams, its principles and lessons can be applied to all kinds of teamwork.
DISSECTING DOCKER: FROM DOCKERS TO CONTAINER SANDBOXES
What is Docker? If you’ve heard of Docker and used it, you probably know where the name comes from; Docker takes its name from the dockworkers who are responsible for moving containers and moving them from one place to another. In the computer world, Docker is also a mover, responsible for moving applications and their dependencies from one environment to another. This is a concrete implementation of containerisation technology, which enables lightweight packaging and deployment of applications through the concepts of images and containers that package an application into a portable container.
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