News Aggregator

Lessons Learned From Running Disaster Recovery Drills

Aggregated on: 2025-10-31 14:25:57

Disaster recovery (DR) is not just about backing up data — it’s also about ensuring that when the unexpected issue strikes, systems, people, and processes can recover quickly and efficiently. While planning and documentation are essential, the true test of a DR strategy comes from running drills. Through multiple exercises across organizations, here are the critical learnings that can significantly improve the effectiveness of DR initiatives.

Deployable Architecture: The Cornerstone of Scalable Platform Engineering

Aggregated on: 2025-10-31 13:25:57

As architects, you’ve likely seen the same story unfold across growing organizations: teams move fast, each solving problems in their own way — building pipelines, wiring infrastructure, and embedding security into their services from scratch. Initially, it works. But as the organization scales, the cracks begin to show. Environments drift. Deployments become brittle. Governance becomes reactive. And suddenly, the well-intentioned architecture you’ve crafted becomes challenging to replicate, secure, or evolve consistently across teams.

How Modern Developers Use AI-Assisted Coding to Validate Products Faster

Aggregated on: 2025-10-31 12:25:57

Software development has changed a lot in the past two years. I've been working with AI coding assistants since they first appeared. The most interesting part? It's not just about writing code faster. AI has changed how we validate our products. My co-founder and I noticed something strange on our latest project. Our team was shipping features super fast. But we also had more edge cases and security issues. This is the new reality. You move faster, but things get more complex. Most teams using AI tools face this.

An Open-Source ChatGPT App Generator

Aggregated on: 2025-10-31 11:25:57

OpenAI released ChatGPT apps just a couple of days ago. Such apps are incredibly interesting from a UX perspective, because sometimes a chat user interface simply won't cut it. Sometimes, you simply need a graphical user interface. For such cases, there are "ChatGPT apps." So, what is a ChatGPT app? Well, it's a fully functional user interface with buttons, dropdown lists, checkboxes, and everything you can create on the web. It can be as complex as Google Maps or as simple as a collect email form. It is basically "an app" hosted inside your AI chatbot. You can try a simple such app by clicking here.

When Coalesce Is Slower Than Repartition: A Spark Performance Paradox

Aggregated on: 2025-10-30 19:10:56

If you've worked with Apache Spark, you've probably heard the conventional wisdom: "Use coalesce() instead of repartition() when reducing partitions — it's faster because it avoids a shuffle." This advice appears in documentation, blog posts, and is repeated across Stack Overflow threads. But what if I told you this isn't always true? In a recent production workload, I discovered that using repartition() instead of coalesce() resulted in a 33% performance improvement (16 minutes vs. 23 minutes) when writing data to fewer partitions. This counterintuitive result reveals an important lesson about Spark's Catalyst optimizer that every Spark developer should understand.

SQL Ledger in SQL Server 2022: Tamper-Evident Audit Trails and Immutable Ledger Tables

Aggregated on: 2025-10-30 18:10:56

SQL Server 2022 introduced the Ledger feature to meet the growing need for tamper-evident audit trails in regulated and audit-heavy industries such as finance, healthcare, and supply chains. One of the most notable implementations of this feature is the append-only ledger table, which ensures that sensitive data is immutable once added, providing stronger guarantees of integrity and compliance. Below, we incorporate and expand on the example and details from Microsoft's official article on creating and using append-only ledger tables, showcasing its capabilities to preserve data integrity and support audit scenarios.

A Comprehensive Analysis of Async Communication in Microservice Architecture

Aggregated on: 2025-10-30 17:10:57

Microservice architecture has become a standard practice for companies, small and large. One of the challenges is communication between different services. I’ve worked with microservices for a decade now, and I’ve seen a lot of people struggle to understand how to implement a proper communication protocol. In this series of articles, I’ll share my knowledge and expertise on async communication in microservices.

From Model to Microservice: A Practical Guide to Deploying ML Models as APIs

Aggregated on: 2025-10-30 16:10:56

You’ve done it. You’ve spent weeks cleaning data, feature engineering, and hyperparameter tuning. You have a Jupyter Notebook showing a beautiful .fit() and a .predict() that works perfectly. The model accuracy is 99%. Victory! But now comes the hard part. Your stakeholder asks, "That's great, but how do we get this into the new mobile app?" Suddenly, the reality hits: a model in a notebook delivers zero business value. To be truly useful, your machine learning model needs to be integrated into applications, and the most robust, scalable way to do so is to deploy it as a Microservice API.

Keyword vs Semantic Search With AI

Aggregated on: 2025-10-30 15:10:56

When building a search for an application, you typically face two broad approaches: Traditional keyword-based search — match words exactly or with simple variants. Semantic (or vector) search — match meaning or context using AI embeddings. There’s also a hybrid approach, but I will leave that for a future article. Instead, in this post, I’ll walk you through how the two broad approaches work in Python using MariaDB and an AI embedding model, highlight where they differ, and show code that you can adapt.

Building Reactive Microservices With Spring WebFlux on Kubernetes

Aggregated on: 2025-10-30 14:10:57

Migrating from a monolithic Java 8 system to a reactive microservice architecture on Kubernetes allowed us to dramatically improve performance and maintainability. In this article, I’ll share our journey, key Spring Cloud Kubernetes features we adopted, the challenges we faced during development, and the lessons we learned along the way. Business Logic We have a data processing logic that streams information into S3 storage using Kafka, Spark Streaming, and Iceberg. Initially, we encountered multiple challenges, such as file optimization issues and Spark’s unpredictable memory behavior. After addressing these issues, we achieved significant cost savings. Once the insert service was completed, we needed to select an appropriate search engine service. We chose Trino as it fulfilled the needs of our data science department. We also serve customers who perform operations on our S3 data, which can result in high system load. Before this modernization, our platform ran on an old monolithic architecture built with Java 8, which created several performance and maintenance challenges.

Improving Developer Productivity With End-to-End GenAI Enablement

Aggregated on: 2025-10-30 13:10:56

This is a very common scenario that every developer can relate to — I am focused on a feature, and suddenly my project buddy requests a PR review or asks for help when a test case is failing. Now, I need to context-switch to help my buddy, or the code review will be delayed. Every engineering team faces the same bottlenecks — context switching, boilerplate work, delayed code reviews, and slow onboarding. The goal is to improve developer enablement and boost productivity through automation. Generative AI amplifies that goal. From writing user stories to generating test cases, GenAI can automate repetitive tasks and provide real-time guidance. But the challenge is to connect all those capabilities cohesively rather than treat them as isolated tools.

How to Get a Frequency Table of a Categorical Variable as a Data Frame

Aggregated on: 2025-10-30 12:10:57

Categorical data is data with a predefined set of values. Using “Child,” “Adult,” or “Senior” instead of a person's age as a number is one example of age categorization. However, before using categorical data, one must know about various forms of categorical data First of all, categorical data may or may not be defined in an order. To say that the size of a box is small, medium, or large means that there is an order described as small < medium < large. The same does not hold for, say, sports equipment, which could also be categorial data, but differentiated by names like dumbbell, grippers, or gloves; that is, you can order the items on any basis. Those that can be ordered are known as “ordinal” while those where there is no such ordering are “nominal” in nature.

Building a New Testing Mindset for AI-Powered Web Apps

Aggregated on: 2025-10-30 11:10:56

The technology landscape is undergoing a profound transformation. For decades, businesses have relied on traditional web-based software to enhance user experiences and streamline operations. Today, a new wave of innovation is redefining how applications are built, powered by the rise of AI-driven development. However, as leaders adopt AI, a key challenge has emerged: ensuring its quality, trust, and reliability. Unlike traditional systems with clear requirements and predictable outputs, AI introduces complexity and unpredictability, making quality assurance (QA) both more challenging and more critical. Business decision-makers must now rethink their QA strategy and investments to safeguard reputation, reduce risk, and unlock the full potential of intelligent solutions.

From Autocomplete to Co-Creation: How AI Changes Developing/Debugging Workflows in Engineering

Aggregated on: 2025-10-29 19:25:56

The Shift to Co-Creation We are in the middle of a new era of software engineering, where AI coding assistants are no longer just autocomplete helpers but valuable collaborators in the development and debugging process. These tools can speed up the creation of scripts, help navigate unfamiliar languages, and reduce the time spent on repetitive tasks. Yet, the engineer’s role remains central: applying expertise, understanding the problem space, and ensuring solutions are accurate, secure, and effective. AI acts as a helping hand that makes the process of creation faster. In this article, I will share several real-time examples to show how AI assistants are changing development and debugging workflows, from scripting with unfamiliar languages to working with complex APIs and debugging.

Emerging Patterns in Large-Scale Event-Driven AI Systems

Aggregated on: 2025-10-29 18:25:56

Modern distributed systems are increasingly being transformed by event-driven architectures (EDA) and the integration of artificial intelligence (AI). Organizations across FinTech, e-commerce, and IoT domains are moving from static request–response models to asynchronous, event-driven systems capable of processing billions of transactions in near real time. The traditional AI pipeline, train → deploy → infer, is designed for batch use and is effective when insights can wait. However, there are domains in which decisive action must occur immediately, for example, fraud detection, IoT telemetry, or autonomous navigation. Waiting would be an unacceptable risk.

ZEISS Demonstrates the Power of Scalable Workflows With Ampere® Altra® and SpinKube

Aggregated on: 2025-10-29 17:25:56

The Challenge The cost of maintaining a system capable of processing tens of thousands of near-simultaneous requests, but which spends greater than 90 percent of its time in an idle state, cannot be justified. Containerization promised the ability to scale workloads on demand, which includes scaling down when demand is low. Maintaining many pods among a plurality of clusters just so the system doesn’t waste time in the upscaling process contradicts the point of workload containerization. The Solution Fermyon produces a platform called SpinKube that leverages WebAssembly (WASM), originally created to execute small elements of bytecode in untrusted web browser environments, as a means of executing small workloads in large quantities in Kubernetes server environments. Because WASM workloads are smaller and easier to maintain, pods can be spun up just-in-time as network demand rises without consuming extensive time in the process. And because WASM consists of pre-compiled bytecode. It can be executed on server platforms powered by Ampere® Altra® without all the multithreading and microcode overhead that other CPUs typically bring to their environments — overhead that would, in less compute-intensive circumstances such as these, be unnecessary anyway.

Make Static Sites Feel Dynamic With APIs Only (No Backend Needed)

Aggregated on: 2025-10-29 16:25:56

A static site does not have to feel frozen. With a bit of JavaScript, a static page can request data from an API and update the page on the fly. That is the whole idea behind an API-only approach: HTML, CSS, and JavaScript live on a CDN, the browser calls APIs for content, and the page updates itself. Why should teams care? It is fast, cheap, and simple. Static files load from a CDN, deploys are trivial, and scale happens without heavy servers. It also works for real sites, like a blog fed by a headless CMS API, a product grid powered by a commerce API, or a contact form that posts to a forms service.

End of Static Knowledge Bases? How MCP Enables Live RAG

Aggregated on: 2025-10-29 15:10:56

There's a secret about production RAG systems that nobody talks about: the hardest part isn't building them — it's keeping them updated. Companies spend weeks curating documents, tuning embeddings, and perfecting their retrieval pipelines. Everything works beautifully at launch. Then reality hits. Prices change. Policies update. Products get renamed. Within weeks, the knowledge base is serving confidently wrong answers based on outdated information.

Series (2/4): Toward a Shared Language Between Humans and Machines — From Multimodality to World Models: Teaching Machines to Experience

Aggregated on: 2025-10-29 14:10:56

What if the key to a shared language lay in experience itself? Researchers are now exploring approaches that connect text with images, sounds, and interactions within a three-dimensional world. Sensorimotor grounding, multimodal perception, and world models, all these paths aim to give machines the kind of anchoring they still so painfully lack.

A Developer's Practical Guide to Support Vector Machines (SVM) in Python

Aggregated on: 2025-10-29 13:10:56

Support Vector Machines (SVMs) are one of the most powerful and versatile supervised machine learning algorithms. Initially famous for their high-performance "out of the box," they are capable of performing both linear and non-linear classification, regression, and outlier detection. For classification tasks, the core idea behind SVM is to find the optimal hyperplane that best separates the different classes in the feature space.

Debugging a Spark Driver Out of Memory (OOM) Issue With Large JSON Data Processing

Aggregated on: 2025-10-29 12:10:56

As a data engineer, I recently encountered a challenging scenario that highlighted the complexities of Apache Spark memory management and Spark internal processing. Despite working with what seemed like a moderate dataset (25 GB), I experienced a driver Out of Memory (OOM) error that halted my data replication job. In this article, I will discuss Spark's internal processing complexity and memory management that can help us build a resilient data replication solution.

HSTS Beyond the Basics: Securing AI Infrastructure and Modern Attack Vectors

Aggregated on: 2025-10-29 11:10:56

It all started while I was working with a colleague on web security. I heard that their team is enabling HSTS as part of their Black Friday security upgrades to their website. The first question that popped into my mind is, why do you require HSTS if there is HTTP/2 and HTTP/3? You can read my article on Hackernoon to understand the basics of HSTS. For starters, HTTP Strict Transport Security (HSTS) is a web security policy mechanism that helps protect websites against protocol downgrade attacks and cookie hijacking. Introduced in 2012 as RFC 6797, HSTS has become a critical component of modern web security infrastructure, ensuring that browsers communicate with web servers exclusively over secure HTTPS connections. But as AI systems grow and move to production in enterprises, HSTS would become critical for protecting machine learning pipelines, API endpoints, and model deployments. Let's explore advanced use cases and how HSTS principles apply to AI security.

Building Secure Software: Integrating Risk, Compliance, and Trust

Aggregated on: 2025-10-28 19:25:55

This paper outlines a practical approach to secure software engineering that brings together: Static and Dynamic Application Security Testing (SAST & DAST) Information Security Risk Assessment (ISRA) Software Composition Analysis (SCA) Continuous Vulnerability Management Measuring Security Confidence (MSC) framework OWASP Top 10 secure coding standards It also examines how regulations like the General Data Protection Regulation (GDPR) and the upcoming EU Cyber Resilience Act (CRA) are changing expectations around secure-by-design software and lifecycle accountability.

Building Cloud Ecosystems With Autonomous AI Agents: The Future of Scalable Data Solutions

Aggregated on: 2025-10-28 18:25:55

AI agents are a reality now and are one of the key research goals for AI companies and research labs. These agents automate monotonous and complicated workflows within cloud environments. They are able to enhance human functionalities in code generation and debugging. They improve productivity by reducing manual efforts for creative and higher-level thinking, while the AI agents do what they do best. With this, AI agents are evolving cloud and data systems. Scalability is maximized and efficiency is realized with their implementation because humans are finally getting the time to revolutionize, while AI is doing the tedious work, optimizing resources, predicting problems, and tailoring solutions. They can even detect errors quickly and make decisions based on data.

Unlocking Scalable Data Lakes: Building With Apache Iceberg, AWS Glue, and S3

Aggregated on: 2025-10-28 17:25:55

Introduction: The Pain of Traditional Data Lakes Over the last decade, cloud object storage (Amazon S3, Azure Blob, Google Cloud Storage) has become the de facto substrate for data lakes. The promise was alluring: cheap, durable, infinitely scalable storage with a “store first, model later” mindset. But in practice, traditional data lakes quickly turned into “data swamps.” Engineers face recurring issues:

Optimizing Search: A Patent-Backed Approach to Perceived Speed

Aggregated on: 2025-10-28 16:25:55

So, imagine it’s a Friday night after a long week. The kids are finally asleep, and you’re ready to unwind with the new season of Stranger Things. You open the Netflix app, select that banner on the home page, and press play! And then you see that dreaded loading circle that just wouldn’t go away. Why?

Production-Ready Multi-Agent Systems: From Theory to Enterprise Deployment

Aggregated on: 2025-10-28 15:25:55

Your single AI agent is about to become obsolete. While you're debugging prompt chains, your competitors are deploying agent teams that coordinate like human organizations — achieving 40% cost reductions and 3x faster execution. This guide reveals the production patterns that separate the 20% of successful multi-agent deployments from the 80% that fail. You'll learn why the supervisor/worker pattern dominates, how evaluator agents prevent million-dollar mistakes, and what Uber, LinkedIn, and Klarna learned the hard way. The $5.4 Billion Reality Check Something fundamental shifted in 2024. The AI agent market exploded to $5.4 billion, with the majority of enterprises deploying multi-agent systems. But here's the uncomfortable truth: while everyone talks about agents, most implementations are elaborate prompt chains pretending to be intelligent systems.

Amazon Bedrock Guardrails for GenAI Applications

Aggregated on: 2025-10-28 14:25:55

Amazon Bedrock Guardrails enable you to implement safeguards and enforce responsible AI policies for your generative AI applications, tailored to specific use cases. With Guardrails, you create multiple tailored configurations and apply them across different foundation models, ensuring a consistent user experience and standardized safety controls across all your generative AI applications. Guardrails allow you to configure denied topics to prevent undesirable subjects from being discussed and content filters to block harmful content in both input prompts and model responses. Guardrails can be used with text-only foundation models.

Data Migration in Software Modernization: Balancing Automation and Developers’ Expertise

Aggregated on: 2025-10-28 13:25:55

When business owners think about modernizing a legacy application, they often focus on the most visible part: a sleek new user interface. However, the real challenge often lies beneath the surface. It’s a data migration strategy. Moving data from an outdated system isn’t just a simple copy-paste job. It requires deep planning and expert execution, while automated data migration tools promise speed and cost savings, they are not a silver bullet. In this article, we’ll explore why automated tools alone aren’t enough, when developer expertise remains irreplaceable, and how a hybrid approach can save time and money. How Databases Evolve During Legacy Software Modernization When we talk about how data usually changes in the context of modernizing legacy software, we typically mean the following key processes.

Understand and Optimize AWS Aurora Global Database

Aggregated on: 2025-10-28 12:25:55

AWS Aurora Database supports a global multi-region setup, including a primary and a secondary region. When engineering with Aurora Global, the default settings are great, but understanding all the available configuration options and how those come together saves time and effort. This article explains Global Write Forwarding and its effects in detail, which is a very handy setting that lets applications read and write from applications running on both primary and secondary regions. Note that this article is not about Aurora DSQL, which is a different service that supports active-active setup out of the box. Aurora Defaults Aurora Global Database sets up a writer and a reader in the primary region, plus a reader and a standby writer instance in the secondary region. The standby writer will be promoted to a writer during a region failover, where the secondary region becomes primary.

Unpacking MCP Security: What You Need to Know

Aggregated on: 2025-10-28 11:25:55

Why the Model Context Protocol is powerful — and why it demands serious attention from security teams Ever since the model context protocol (MCP) was developed and open-sourced by Anthropic in late 2024, it has become the go-to standard for linking large language models (LLMs) with external tools, APIs, and data sources. MCP simplifies and standardizes how models interact with systems, making it easier to build AI agents. Too, building a dynamic tool using AI agents is significantly easier.

Writing (Slightly) Cleaner Code With Collections and Optionals

Aggregated on: 2025-10-27 19:10:55

Kilo is an open-source project for creating and consuming RESTful and REST-like web services in Java. Among other things, it includes the Collections and Optionals classes, which are designed to help simplify code that depends on collection types and optional values, respectively. Both are discussed in more detail below. Collections Kilo’s Collections class provides a set of static utility methods for declaratively instantiating list, map, and set values:

Mastering Fluent Bit: Top Tip Using Telemetry Pipeline Parsers for Developers (Part 8)

Aggregated on: 2025-10-27 18:10:55

This series is a general-purpose getting-started guide for those of us wanting to learn about the Cloud Native Computing Foundation (CNCF) project Fluent Bit. Each article in this series addresses a single topic by providing insights into what the topic is, why we are interested in exploring that topic, where to get started with the topic, and how to get hands-on with learning about the topic as it relates to the Fluent Bit project.

Set Up Spring Data Elasticsearch With Basic Authentication

Aggregated on: 2025-10-27 17:10:55

Recently, I wrote the Introduction to Spring Data Elasticsearch 5.5 article about Spring Data Elasticsearch usage as a NoSQL database. The article covered just the setup of the unsecured Elasticsearch. However, we need to be able to connect to the secured Elasticsearch as well. Let's follow the previous article and see the needed changes to run and connect to the secured Elasticsearch. In This Article, You Will Learn How to create a secure Elasticsearch How to connect to the secured Elasticsearch with Spring Data Elasticsearch How to change the password in Elasticsearch Set Up Secured Elasticsearch The setup for creating a secure Elasticsearch is pretty similar to the steps in the already-mentioned article. The technologies used in this article, compliant with the compatibility matrix, are:

Using Schema Registry to Manage Real-Time Data Streams in AI Pipelines

Aggregated on: 2025-10-27 16:10:55

In today’s AI-powered systems, real-time data is essential rather than optional. Real-time data streaming has started having an important impact on modern AI models for applications that need quick decisions. However, as data streams increase in complexity and speed, ensuring data consistency is a significant engineering challenge. As we know, AI models are heavily dependent on the input data used to train them. The quality of this input data is very important and should not be corrupted or contain errors. The accuracy, reliability, and fairness of the model’s predictions can be significantly affected if the quality of the input data is compromised. The above statement is concrete, while AI models are being developed and subsequently made ready to identify patterns, make predictions based on input data. If we integrate these developed and tested trained AI models with real-time data stream processing pipelines, the predictions can be achieved on the fly. Because the real-time data streaming plays a key role for AI models as it allows them to handle and respond to data as it comes in, instead of just using old fixed datasets. You could read here my previous article, “AI on the Fly: Real-Time Data Streaming from Apache Kafka to Live Dashboards.” But the big question is how we can ensure real-time data that comes as a stream from various sources is free from errors and not at all bad data. By spotting patterns and trained data, AI systems decide. If this data has mistakes, doesn’t add up, or is messy, the model might pick up wrong patterns. This can lead to outputs that are biased, off the mark, or even risky.

Anthropic’s Model Context Protocol (MCP): A Developer’s Guide to Long-Context LLM Integration

Aggregated on: 2025-10-27 15:10:55

Large language models (LLMs) like Anthropic’s Claude have unlocked massive context windows (up to 100k tokens in Claude 2) that let them consider entire documents or codebases in a single go. However, effectively providing relevant context to these models remains a challenge. Traditionally, developers have resorted to complex prompt engineering or retrieval pipelines to feed external information into an LLM’s prompt. Anthropic’s Model Context Protocol (MCP) is a new open standard designed to simplify and standardize this process. Think of MCP as the “USB-C for AI applications” — a universal connector that lets your LLM seamlessly access external data, tools, and systems. In this article, we’ll explain what MCP is, why it’s important for long-context LLMs, how it compares to traditional prompt engineering, and walk through building a simple MCP-compatible context server in Python. We’ll also discuss practical use cases (like retrieval-augmented generation and agent tools) and provide code examples, diagrams, and references to get you started with MCP and Claude. What is MCP and why does it matter? MCP (Model Context Protocol) is an open protocol introduced by Anthropic in late 2024 to standardize how AI applications provide context to LLMs. In essence, MCP defines a common client–server architecture for connecting AI assistants to the places where your data lives — whether that’s local files, databases, cloud services, or business applications. Before MCP, integrating an LLM with each new data source or API meant writing a custom connector or prompt logic for that specific case. This led to a combinatorial explosion of integrations: M AI applications times N data sources could require M×N bespoke implementations. MCP addresses this by providing a universal interface so that any compliant AI client can communicate with any compliant data/service server, reducing the problem to M + N integration points.

Series: Toward a Shared Language Between Humans and Machines Part 1/4: Why Machines Still Struggle to Understand Us

Aggregated on: 2025-10-27 14:10:55

Language models give the impression of conversing with us as if they really understood. But behind this fluency lies an illusion: machines share neither our experiences nor our intentions. This article explores the fundamental barriers that prevent any genuine mutual understanding: the absence of lived experience, the absence of a world, and the radical difference in how reasoning works. Anyone who has ever translated between two human languages can’t help but notice that the task is quite complex, even when mastering both languages perfectly. Language holds many subtleties and ambiguities, unspoken meanings, and things that are simply untranslatable from one language to another. These difficulties often have their roots in cultural grounding as well as in lived experience, frames of thought that shape languages.

Enterprise-Grade Document Intelligence: Cloud Big Data AI With YOLOv9 and Spark on AWS

Aggregated on: 2025-10-27 13:10:55

Introduction Document analysis, a modern way: Managing considerable volumes of documents, including checks, ID cards, and tax forms, etc, is an error-prone, tedious, and time-consuming endeavor for financial institutions and enterprises. The standard approach usually employs people and/or older, often less accurate, Optical Character Recognition (OCR) technology to try to manage the variable layouts in documents, the variability in handwriting, and issues with image quality.

Engineering Performance: Technical Analysis of telecom-mas-agent vs Google Cloud Pub/Sub in High-Throughput Telecom Automation

Aggregated on: 2025-10-27 12:10:55

Overview When building telecom automation systems that process millions of messages daily, every millisecond and megabyte matters. After eighteen months of running production workloads and experiencing recurring performance bottlenecks with Google's enterprise-grade solutions, I embarked on a systematic engineering analysis to quantify the true performance characteristics of telecom automation tools. This investigation compares telecom-mas-agent (@npm-telecom-mas-agent)against Google Cloud Pub/Sub (@google-cloud/pubsub) across multiple dimensions: memory management, network optimization, error handling resilience, and computational efficiency. The findings reveal fundamental architectural differences that create measurable performance gaps when competing directly with Google's flagship messaging infrastructure.

Renaming Columns in PySpark: withColumnRenamed vs toDF

Aggregated on: 2025-10-27 11:10:55

If you’ve worked with PySpark DataFrames, you’ve probably had to rename columns. Either using withColumnRenamed repeatedly or toDF(). At first glance, both approaches work the same; you get the renamed columns you wanted. But under the hood, they interact with Spark’s Directed Acyclic Graph (DAG) in very different ways. withColumnRenamed creates a new projection layer for each rename, gradually stacking transformations in the logical plan. toDF(), on the other hand, applies all renames in a single step. While both are optimized to the same physical execution, their impact on the DAG size, planning overhead, and code readability can make a real difference in larger pipelines.

Kubernetes Debugging Recipe: Practical Steps to Diagnose Pods Like a Pro

Aggregated on: 2025-10-24 19:25:53

Automation isn’t optional at enterprise scale. It’s resilient by design. Kubernetes provides remarkable scalability and resilience , but when pods crash, even seasoned engineers struggle to translate complex and cryptic logs and events. This guide walks you through the spectrum of AI-powered root cause analysis and manual debugging, combining command-line reproducibility and predictive observability approaches.

From Distributed Monolith to Composable Architecture on AWS

Aggregated on: 2025-10-24 18:25:53

You adopted microservices for independence and agility. Instead, every deployment requires coordinating multiple teams and testing the entire system. What you built is a distributed monolith, complexity spread across systems, but still bound by monolithic coupling. The shift from technical boundaries to business-driven boundaries is the only path to true agility. Many organizations discover too late that microservices alone do not guarantee independence. Domain-Driven Composable Architecture (DDCA) provides a methodology to escape this rigidity. This article is a practical playbook for decomposing services into Packaged Business Capabilities (PBCs) aligned with business domains and mapped to AWS patterns such as EventBridge, Step Functions, and DynamoDB Streams. It explains when DDCA fits and when it does not, and covers security, anti-patterns, and operational realities, so you can adopt composability with a clear view of the investment required.

Unhandled Promise Rejections: The Tiny Mistake That Crashed Our Node.js App

Aggregated on: 2025-10-24 17:25:53

Imagine deploying a Node.js backend service that works flawlessly in development, only to have it mysteriously crash in production. Everything ran fine on your laptop, but on the live server, the process keeps shutting down unexpectedly. In our case, the culprit was a single unhandled promise rejection — one missing .catch() in our code caused Node to exit abruptly whenever an error occurred. That one “tiny” mistake made the difference between a stable service and frequent downtime. In this article, we’ll explore how a misconfigured error handling in a Node/Express API can bring down an application, and how to diagnose and fix it to prevent future crashes.

Performance Testing 101: A Beginner's Guide to Building Robust Applications

Aggregated on: 2025-10-24 16:25:53

Welcome! This guide is for anyone who has built an application and wants to ensure it doesn't fall over when real people start using it. We'll walk through the essentials of performance testing without the complicated jargon, focusing on practical steps you can take to make your app robust and reliable. You may find this article too abstract, but be sure the next time we will go over the real example of making a performance test with Java, Gatling, and Docker Compose.

Strategic Domain-Driven Design: The Forgotten Foundation of Great Software

Aggregated on: 2025-10-24 15:25:53

When teams talk about domain-driven design (DDD), the conversation often jumps straight to code — entities, value objects, and aggregates. Yet, this is where most projects begin to lose direction. The essence of DDD is not in the tactical implementation, but in its strategic foundation — the part that defines why and where we apply the patterns in the first place. The strategic aspect of DDD is often overlooked because many people do not recognize its importance. This is a significant mistake when applying DDD. Strategic design provides context for the model, establishes clear boundaries, and fosters a shared understanding between business and technology. Without this foundation, developers may focus on modeling data rather than behavior, create isolated microservices that do not represent the domain accurately, or implement design patterns without a clear purpose.

Build a Dynamic Web Form Using Camunda BPMN and DMN

Aggregated on: 2025-10-24 14:25:53

Business Process Model and Notation (BPMN) is the universal standard for visually modeling and automating business processes. It is used to design and automate workflows, defining the sequence of tasks, approvals, and user interactions. Whereas Decision Model and Notation (DMN) models the complex decision logic that can be embedded within those processes to automate business rules in a structured, reusable way. Camunda's process orchestration platform provides a collaborative environment for Business and IT developers via an intuitive visual Modeler that adheres to BPMN and DMN standards. Modeling with Camunda reduces the time it takes to develop and maintain real-world business processes through automation. Beyond automation, combining BPMN and DMN allows us to create dynamic web forms where the fields, validations, and even flow of the form adapt real-time business rules, instead of being hardcoded. This makes applications more flexible, easier to maintain, and business-driven.

Cloud Agnostic MLOps: How to Build and Deploy AI Models Across Azure, AWS, and Open Source

Aggregated on: 2025-10-24 13:25:53

Artificial intelligence has become the centerpiece of every digital strategy. What began as isolated proof-of-concepts running on data scientists’ laptops is now expected to scale across clouds, business units, and continents. Enterprises quickly discover that the challenge is not building AI models. It’s operationalizing them sustainably.

Diagnosing and Fixing a Page Fault Performance Issue With Arm64 Atomics

Aggregated on: 2025-10-24 12:25:53

While running a synthetic benchmark that pre-warmed the cache, we noticed an abnormal performance impact on Ampere CPUs. Digging deeper, we found that there were many more page faults happening with Ampere CPUs when compared to x86 CPUs. We isolated the issue to the use of certain atomic instructions like ldadd, which load a register, add a value to it, and store data in a register in a single instruction. This triggered two “page faults” under certain conditions, even though this is logically an all-or-nothing operation, which is guaranteed to be completed in one step. In this article, we will summarize how to qualify this kind of problem, how memory management in Linux works in general, explain how an atomic Arm64 instruction can generate multiple page faults, and show how to avoid performance slowdowns related to this behavior.

I Built a Full Stack App Using Only Vibe Coding Prompts: Here’s What Happened

Aggregated on: 2025-10-24 11:25:53

You know that moment when you stare at your screen and think, “What if I just let the vibes lead?” That’s exactly what I did. I decided to build a full-stack app, not with a strict roadmap, not with a pre-decided stack, and not even with a design in Figma, but by coding my way through it by vibe. I used AI tools, intuition, and years of muscle memory to go with the flow. No formal planning, no architecture diagrams, no syntax lookups, just prompts, patterns, and pure gut feel.

Evolving Golden Paths: Upgrades Without Disruption

Aggregated on: 2025-10-23 19:10:53

The platform team had done it again — a new version of the golden path was ready. Cleaner templates, better guardrails, smoother CI/CD. But as soon as it rolled out, messages started flooding in: “My pipeline broke!”, “The new module isn’t compatible with our setup!” Sound familiar? Every platform engineer knows that delicate balance — driving innovation while ensuring developer stability. Golden paths promise simplicity and speed, but without careful version management, they can easily turn from enablers into disruptors.