标签：#ring

📚 Series: Databricks on AWS (Part 0, prologue) The Target Architecture ← you are here Building a Databricks AI Platform on AWS RBAC with Function-Role Groups Compute Governance: Pools, Policies, Clusters The BOOTSTRAP_TIMEOUT Mystery Fixing It with AWS PrivateLink How We Structure the Terraform Before the build story, here's the destination. This is the target-state data architecture we designed the whole platform toward — the three principles that shaped every later decision, and the Unity Catalog governance model that keeps production data safe from human hands. The rest of this series is a build log: workspaces, RBAC, compute, the networking rabbit hole, the Terraform layout. But every one of those decisions was made in service of a target picture we drew first . This post is that picture — the "to-be" architecture, not the scaffolding we happened to have up on any given week. It's built on three things Databricks basically hands you if you lean into them: the Lakehouse (one store, ACID tables, no separate warehouse to sync), the Medallion architecture (raw → cleaned → integrated → business, each layer a promotion), and Unity Catalog as the single governance plane across all of it. The interesting part isn't reciting those three buzzwords — it's the specific way we wire them so that prod, dev, and analyst sandboxes never step on each other. Three principles, and everything follows Almost every concrete rule later in this series is a consequence of one of these three. 1. Nobody touches production by hand. Create, update, delete in prod data happens only through an automated, code-reviewed pipeline running as a service principal. Human accounts don't get write on prod — not analysts, not engineers, not admins. The blast radius of a bad afternoon is capped at whatever a person can do with read-only. This one principle is why the whole "promote" flow later exists. 2. Never copy production to look at it. If an analyst wants to explore the gold layer, they read it in p

Introduction to Hydration and Rendering Strategies In the relentless pursuit of faster, more responsive web applications, developers have engineered a spectrum of hydration and rendering strategies . Each approach emerges as a response to specific performance bottlenecks, yet none is universally optimal. This section dissects the core mechanics of these strategies, their historical evolution, and the critical problem they aim to solve—balancing speed with practicality. The Problem: A Trade-Off Landscape At its core, the challenge is mechanical : how to deliver content to the user’s browser with minimal latency while maintaining interactivity. Traditional rendering methods (e.g., server-side rendering) prioritize initial load speed but often defer interactivity until JavaScript execution. Client-side rendering, conversely, delays the first paint but ensures seamless interactions post-hydration. The tension between these extremes has birthed hybrid strategies like incremental hydration and islands architecture , each addressing specific failure points in the rendering pipeline. Key Mechanisms Driving Strategy Evolution Advancements in Web Technologies : New APIs (e.g., Web Components, Streaming SSR) enable finer-grained control over rendering. For instance, streaming SSR reduces Time-to-First-Byte (TTFB) by sending HTML in chunks, but risks breaking the causal chain of DOM hydration if not synchronized with client-side scripts. User Expectations : Sub-second load times are no longer aspirational but expected. This pressure deforms traditional workflows, pushing developers toward pre-rendering or static site generation (SSG), which trade dynamic flexibility for speed by offloading rendering to build time. Competitive Pressure : Performance is a zero-sum game. Companies adopt strategies like partial hydration (hydrating only interactive components) to minimize JavaScript payload, but this risks breaking interactivity if the hydration boundary is misaligned with user int

Pressing enter to accept model suggestions now takes less effort than scrolling past it. One keystroke, and the code is yours. Reading it, understanding it, deciding if it's actually right, that part hasn't gotten any faster. That gap, between how fast we can accept code and how fast we can actually understand it, is where things start to go wrong. The new shape of technical debt We used to know where technical debt came from. Tight deadline, cut corner, # TODO: comment that nobody ever revisits. Rushing was the cause, and we could at least point to it. Now you can build up the same kind of debt on a calm Tuesday afternoon, no deadline in sight, just six suggestions in a row accepted because they looked fine and the flow felt good. Nobody rushed you, and the code still ended up just as unexamined. Same debt, just a different excuse. "It works" is not the same as "I understand why it works" Everyone knows that debugging is twice as hard as writing a program in the first place. So if you're as clever as you can be when you write it, how will you ever debug it? — Brian Kernighan, 1974 Fifty years later, the gap got wider. Kernighan was talking about code you wrote. At least you understood it once. A suggestion that compiles, passes the linter, survives code review and even comes with passing tests can still be standing on a wrong assumption that nobody caught, because nobody was reading it as code. They were reading it as output, and output that makes sense tends to get approved. Compiling is a low bar. Passing tests is a slightly higher one, depending on whether you wrote the tests, or its suggestion shaped or created those too. If it's the second, it's like grading its homework with its own answers. None of it tells you the logic is sound, that the edge cases are covered, or that it does what you actually needed, something we already learned every time we trusted code we didn't write. Somehow it's easy to forget it the moment the code appears inline, in our own edito

CodeTrace-AI v1.0.1 — Stop Reading Code. Start Understanding It. Every developer has experienced this. You clone a repository, open it, and suddenly you're staring at thousands of files. You spend hours answering questions like: Where is this function called? Which files depend on this module? What happens if I modify this class? Is this code even used anymore? Traditional tools like grep , IDE search, or AI chat assistants can help you find code. They don't help you understand the architecture . That's why I built CodeTrace-AI . What is CodeTrace-AI? CodeTrace-AI is an AI-powered code intelligence tool that transforms your repository into a searchable structural knowledge graph. Instead of treating your project as plain text, it understands your codebase structurally by analyzing: 📂 Folder hierarchy 📄 Files 🏛 Classes ⚙ Functions 📦 Imports 🔗 Function calls 🌐 Cross-file dependencies Think of it as having an AI Software Architect that understands your entire repository. 🚀 What's New in v1.0.1 This release focuses on speed, privacy, and understanding large repositories. 🕸 Interactive Code Graph One of the biggest additions is the interactive repository graph. Instead of reading hundreds of files manually, you can visualize relationships between: Folders Files Classes Functions Imports Function calls Understanding a new project becomes dramatically easier. ⚡ SHA-256 Delta Sync Engine One feature I'm particularly proud of is the new Incremental Indexing Engine. Most code intelligence tools rebuild their entire index every time. CodeTrace-AI doesn't. It computes a SHA-256 fingerprint for every tracked file and detects: ✅ Modified files ➕ Newly added files ❌ Deleted files Only those files are: Re-parsed Re-embedded Re-added to the knowledge graph Everything else is skipped. This makes repeated indexing dramatically faster, especially for large repositories where only a few files change between runs. Under the hood The sync engine includes: SHA-256 fingerprinting Parallel f

Tree of Thoughts was a genuine leap. Instead of reasoning in one straight line, it branches into several lines, scores them, prunes the dead ends, and searches for the best path — so a puzzle that would sink a single chain of thought becomes solvable. But a tree has one restriction baked right into its shape, and once you see it you can't unsee it: every node has exactly one parent. A branch can be extended or abandoned. It can never be combined with another branch. That matters more than it sounds. Real problems decompose, and when they do, different branches each get part of the answer right. Branch A nails the first half; branch B nails the second half; neither is fully correct on its own. A tree is forced to pick one and throw the other's good half away. Graph of Thoughts (GoT) removes exactly that restriction. 🕸️ Interactive demo (a real merge-sort that branches, merges, and refines — with live-verified scores): https://dev48v.infy.uk/prompt/day21-graph-of-thoughts.html The core idea: thoughts are nodes in a graph GoT reframes reasoning as building a graph . Each vertex is a thought — a partial solution or intermediate result. Each edge is an operation that produced one thought from one or more others. Because it's a general graph and not a tree, a thought is allowed to have several parents, and edges can even loop back on themselves. That single change in the data structure is the entire conceptual leap. Everything else is just the operations you're now free to run on that network. The four operations generate (branch) — the familiar move, straight from Tree of Thoughts. From one thought, produce several different next thoughts. This can also be a split : break the input into independent sub-problems solved on separate branches. Diversity matters here — near-duplicates waste budget. score / rank — turn each thought into a number so the controller can compare them. Objective scorers win: a validator, a test, a metric. In the demo, the scorer is deliberately con

Cassie Shum discusses the architectural evolution of GraphRAG and why data foundations are critical for advanced AI workflows. She explains how traditional vector RAG falls short when addressing global context, multi-hop reasoning, and provenance. She shares enterprise strategies for building semantically structured knowledge graphs that shift raw orchestrating logic down to the data layer. By Cassie Shum

We all use AIs today - From a 5th grader to a retired pensioner, from a small-time business owner to a multimillionaire businessman, from a software engineer to a medical expert. AI exists everywhere! And to be honest its making our lives very simple. Yes, it does!. Response in no time, flexibility, reliability - yes, AI gives all and even more And as Software Engineers, we are getting more inclined towards AI. Back in the days, we used to rely on Stackoverflow to get our queries resolved. Sometimes it did, sometimes it didn't. But, AI changed that landscape completely - asking a query, retrieving data, asking follow-ups and so and on so forth. But, honestly, how many of us have thought - Wow this looks amazing! But how does it actually work! Let's say I type this in Chat GPT or Gemini or Claude etc: "Hi, how is the weather today?". The AI assistant takes the input and processes it and returns the response. But , there is a lot of processing and workflow happening under the hood. As a Software Architect, I struggled a lot to get these answers. Different sources, different suggestions. And the suggestions at some point seemed too overwhelming for me. So, I decided to break it down and start a series which will enable people to understand AI. I want to make people understand AI in the simplest way possible and make every developer leverage AI - not just to get their job done, but also to help in upskilling, so that they don't get lost in the overwhelming world of AI as I did initially! Follow me for more updates!

As AI agents work under increasingly less human supervision, the need for a trustworthy, secure work...

Wayve’s offering is part of a growing trend of AI startups using employee tenders as a strategic tool to attract and retain talent.

Security Team: “I have a major Grype...with what I Syfted out of your provided image." Developer: “Well your Grype is slowing me down...let’s tone it down a notch.” While deploying bookstack into my local environment, this issue surfaced. It is true for many organizations today deploying images and packages in their environment. How can this noise fatigue in the software supply chain be remedied? Add a .gype.yaml file to the root directory of your project. This will allow grype to ignore certain CVE's that do not execute or pose a threat in your environment. The yaml config can be as simple as below: Linux Environment # grype.yaml ignore : - vulnerability : CVE-2026-32631 reason : " Platform-specific false positive. Git for Windows only; not applicable to this Linux-based image." - vulnerability : CVE-2016-2781 reason : " Chroot escape via ioctl. Containers rely on namespaces/cgroups, not chroot, so this path isn't exploitable here." OR # grype.yaml ignore : - vulnerability : CVE-2026-32631 - vulnerability : CVE-2016-2781 This will help developers and security engineers get along better. 😃 Grype config reference: https://oss.anchore.com/docs/reference/grype/configuration/

When most people hear Bitcoin , the conversation usually starts with price. But for developers, Bitcoin is much more than a chart. Bitcoin is a distributed system operating without a central authority. It combines networking, cryptography, game theory, economics, and software engineering into a protocol that has remained operational for years while processing value globally. As a software developer, what fascinates me most is not speculation it’s the architecture. Some concepts every developer can appreciate: ⚡ Distributed Consensus Thousands of nodes independently verify the same rules without trusting each other. 🔐 Cryptography in Practice Digital signatures make ownership verifiable without revealing private keys. ⛏️ Proof of Work A mechanism that converts computation into security and coordination. 🌍 Open Source at Global Scale Anyone can inspect the code, run a node, contribute, or build on top of the ecosystem. 📦 Immutability Through Design Data integrity is achieved through incentives, validation rules, and chained blocks. Studying Bitcoin changes how you think about: System reliability Security models Network design Incentive structures Building software that survives failure Whether you plan to build in blockchain or not, Bitcoin is worth studying because it teaches principles that extend far beyond finance. Curious to hear from other developers: What concept in Bitcoin architecture changed the way you think about software systems?

Elastic open-sourced Atlas, a system built on Elasticsearch that maintains three categories of memory for agents. Atlas integrates with agents via MCP and maintains per-user isolation of memories. When evaluated on question-answering capability, it scored 0.89 Recall@10. By Anthony Alford

TL;DR Anthropic recently published When AI Builds Itself, an essay explaining how AI is...

Introduction As applications grow, traditional relational databases such as MySQL may struggle with analytical workloads involving millions of records and complex aggregations. While MySQL excels at Online Transaction Processing (OLTP), ClickHouse® is purpose-built for Online Analytical Processing (OLAP), enabling lightning-fast analytical queries on massive datasets. Migrating data from MySQL to ClickHouse® allows organizations to build high-performance reporting systems, dashboards, and real-time analytics without impacting transactional workloads. In this guide, you'll learn several approaches to migrate data from MySQL to ClickHouse®, along with their advantages, limitations, and ideal use cases. Why Migrate from MySQL to ClickHouse®? MySQL and ClickHouse® are designed for different workloads. Feature MySQL ClickHouse® Storage Model Row-based Columnar Best For Transactions (OLTP) Analytics (OLAP) Query Speed Fast for row lookups Extremely fast for large scans Aggregation Performance Moderate Extremely fast Scalability Primarily Vertical Optimized for analytical scaling Typical Use Cases Applications and transactional systems Reporting, dashboards, and analytics Migrating from MySQL to ClickHouse® makes sense when: Analytical queries are becoming slow in MySQL. You need real-time dashboards over large datasets. Reporting queries are impacting your production database. You regularly process millions or billions of rows. Migration Architecture MySQL │ ▼ Export / Synchronization │ ▼ Data Transformation │ ▼ ClickHouse® │ ▼ Dashboards / Analytics Migration Methods There are multiple ways to migrate data depending on your requirements. Method 1: CSV Export and Import (Recommended for Beginners) This is the simplest approach for performing a one-time migration of historical data. Step 1: Export Data from MySQL Run the following command inside MySQL: SELECT * INTO OUTFILE '/tmp/employees.csv' FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY ' \n ' FROM employ

Event-driven architecture promises scalability, but in Java-based real-time systems the tradeoffs only surface in production. Drawing on a Java/Kafka contact center platform handling 80k BHCC across 10k agents, this article details where the design breaks down—state management, partition limits, deduplication, JVM tuning, cascading consumer failures—and the Redis-backed patterns that fixed each. By Sagar Deepak Joshi

I had a bug last month that took most of a Saturday to find. A support bot we shipped started promising refund timelines that didn't match policy. Customer complaints, frantic Slack messages, the usual. The prompt had changed three weeks earlier. Nobody could remember why. Git blame pointed to a one-line edit inside a 200-line SYSTEM_PROMPT constant. No PR description, no diff worth reading. That's when I knew I'd been writing prompts wrong for the last two years. PromptOT - Prompt Management Platform Compose prompts from typed blocks, version safely, and deliver to your apps via API. The prompt management platform built for AI engineering teams. promptot.com Prompts are code, but we treat them like Notion docs A typical system prompt for anything useful crams five things into one string: You are a friendly support agent for Acme. Use this knowledge: {{kb}}. Follow escalation rules. Never share internal ticket IDs. Reply in plain text, two to four paragraphs. That's a role, context, instructions, guardrails, and an output format all jammed together. When the PM wants to soften the tone, they're editing the same string an engineer uses to update the knowledge base. When security adds a guardrail, it lands inches from the response format. One bad edit and every reply ships broken. We wouldn't write code this way. So why are prompts always a 200-line const somewhere in lib/ ? What I built PromptOT is a prompt management platform. The core idea is small: typed blocks instead of flat strings. You break a prompt into pieces. Each piece has a type — role, context, instructions, guardrails, output_format, custom. Each one is independently editable, can be toggled on or off, and has its own version history. The compiler joins them into a single prompt string at delivery time. Block 1 — role : " You are a support agent for Acme..." Block 2 — context : " Knowledge base: {{kb}}..." Block 3 — instructions : " 1. Acknowledge the issue..." Block 4 — guardrails : " Never share inte

AI เขียนโค้ดแทนเราได้แล้ว — แล้วเราจะเหลืออะไรให้ทำ? มีประโยคที่ได้ยินบ่อยขึ้นทุกวัน: "เดี๋ยวนี้ใครยังไม่ใช้ AI ช่วยเขียนโค้ดบ้าง?" คำตอบคือ — แทบไม่มีแล้วครับ ตั้งแต่ GitHub Copilot, Cursor, Claude, ChatGPT ไปจนถึง agent ที่เขียนโค้ดเองได้ทั้ง project — เราใช้ AI ใน level ที่ต่างกัน: Level หน้าตา ตัวอย่าง 🎵 Vibe Coding พิมพ์สิ่งที่อยากได้ กด accept อย่างเดียว "เขียนหน้า login ให้หน่อย" → กด tab tab tab 🧩 Prompt-Guided คิดก่อน ถามทีละส่วน ตรวจทุกอย่าง "สร้าง UserService ที่ใช้ bcrypt hash password" 🛠️ Skill/Lint-Guided ใช้ AI เป็น editor ชั้นสูง — lint, refactor, test "refactor function นี้ให้เป็น table-driven test" 🏗️ Agent-Based ให้ AI run ทั้ง project — spawn subagent, PR, deploy "พอร์ต microservice นี้จาก Express ไป Fastify" แล้วคำถามคือ — ถ้า AI ทำทั้งหมดนี้ได้ แล้วมนุษย์อย่างเราเหลืออะไร? Unit Test — ตัวอย่างที่เห็นชัดที่สุด ลองดู unit test ที่ AI เขียนให้: // 🤖 AI-generated test func TestCalculateDiscount ( t * testing . T ) { tests := [] struct { name string input float64 expected float64 }{ { "zero" , 0 , 0 }, { "normal" , 100 , 90 }, // 10% discount { "max" , 1000 , 800 }, // 20% discount } for _ , tt := range tests { t . Run ( tt . name , func ( t * testing . T ) { result := CalculateDiscount ( tt . input ) if result != tt . expected { t . Errorf ( "got %v, want %v" , result , tt . expected ) } }) } } ดูเผิน ๆ — สวย, table-driven, ถูกต้องตาม Go convention 1 แต่ถามหน่อย — test นี้บอกอะไรเกี่ยวกับ business? "ส่วนลด 10% สำหรับยอด 100 บาท" — ทำไมต้อง 100? เป็นกฎจากที่ไหน? "ส่วนลด 20% เมื่อยอดถึง 1000" — แล้วถ้าลูกค้าเป็น member ได้เพิ่มอีก 5% ล่ะ? input: 0, expected: 0 — test นี้ cover edge case หรือแค่ cover บรรทัด? AI test ได้ถูกต้องตาม function — แต่มัน ไม่รู้ว่า business จริง ๆ คืออะไร AI ไม่รู้ Business Context — และจะไม่มีวันรู้ นึกภาพระบบ e-commerce: ลูกค้าซื้อสินค้า → ระบบตัดสต็อก → คำนวณส่วนลด → คิดค่าส่ง → ออกใบเสร็จ AI แยก test ทีละ function ได้: ✅ TestDeductStock — "ตัดสต็อก 1 ชิ้น" ✅ TestCalculateDiscount — "ส่วนลด 10%" ✅ TestCalculateShipping —

OpenAI engineers used large-scale core dump analysis to debug rare infrastructure crashes, uncovering both a hardware fault and a long-standing software bug.

You add an enum to an entity, slap @Enumerated on it, and move on. Five seconds. It is the kind of decision nobody writes a design doc for. Then six months later a row comes back as SHIPPED when it was PAID , no exception was thrown, no query failed, and you spend an afternoon learning that the default you never thought about has been silently rewriting history. Here is the order lifecycle we will use the whole way through: public enum OrderStatus { PENDING , PAID , SHIPPED , DELIVERED } Five ways to store it. They are not equivalent, and the gap between them only shows up under change. @Enumerated(ORDINAL): store the position This is the default. Leave the annotation bare and JPA stores the enum's ordinal, its index in the declaration order. @Enumerated ( EnumType . ORDINAL ) private OrderStatus status ; PENDING is 0, PAID is 1, SHIPPED is 2, DELIVERED is 3. The column is a tidy little smallint . Everything works. Until someone needs a new status and adds it where it reads well: public enum OrderStatus { PENDING , PAID , CANCELLED , // inserted here SHIPPED , DELIVERED } CANCELLED is now 2. SHIPPED is 3. DELIVERED is 4. Every row written before this change still holds the old integer, so every order that was SHIPPED (2) now reads back as CANCELLED . The database is correct. Your data is wrong. And nothing told you. If you are stuck with ORDINAL on a legacy schema, pin it with a test that fails the build the moment someone reorders: @Test void ordinalsAreFrozen () { assertEquals ( 0 , OrderStatus . PENDING . ordinal ()); assertEquals ( 1 , OrderStatus . PAID . ordinal ()); assertEquals ( 2 , OrderStatus . SHIPPED . ordinal ()); assertEquals ( 3 , OrderStatus . DELIVERED . ordinal ()); } New constants may only be appended. The test turns an invisible runtime corruption into a loud compile-time-ish failure. It is a guardrail, not a fix. @Enumerated(STRING): store the name Store the constant name instead of its position. @Enumerated ( EnumType . STRING ) private OrderS

Asymm Systems has released Eliya 25.0.3, an OpenJDK 25 LTS distribution aimed at improving production diagnostics in Java environments. It consolidates several HotSpot features into an opt-in Production profile. Eliya is designed for teams needing reliable diagnostic data, especially in regulated settings. Future enhancements are planned for Phase 2. By A N M Bazlur Rahman