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High-Cardinality File Access Analysis with Honeycomb + OTel

TL;DR We built a serverless pipeline that ships FSx for ONTAP audit logs to Honeycomb, where its high-cardinality query engine turns file access data into actionable insights. Two delivery paths verified: [Path A: Direct] FSx for ONTAP → S3 Access Point → EventBridge Scheduler → Lambda → Honeycomb Events Batch API [Path B: OTel Collector] FSx for ONTAP → S3 Access Point → EventBridge Scheduler → Lambda → OTel Collector → OTLP → Honeycomb Why Honeycomb for file access logs? Because file access data is inherently high-cardinality : thousands of users × millions of file paths × dozens of operations × multiple SVMs. Traditional log tools force you to pre-aggregate or sample. Honeycomb lets you query the raw events at full resolution. ┌──────────────────────────────────────────────────────┐ │ Honeycomb Query Engine │ │ │ │ "Show me which users accessed /vol/finance/* │ │ between 2am-4am last Tuesday" │ │ │ │ → BubbleUp: auto-detect anomalous dimensions │ │ → Heatmap: visualize access density over time │ │ → GROUP BY user, path, operation — no pre-indexing │ │ │ │ 20M events/month FREE │ └──────────────────────────────────────────────────────┘ This is Part 10 of the Serverless Observability for FSx for ONTAP series. Why Honeycomb for File Access Logs? Most observability tools index a fixed set of fields. When you have high-cardinality dimensions — like file paths ( /vol/data/project-alpha/2026/Q1/report-final-v3.docx ) or Active Directory usernames — you hit index bloat, slow queries, or forced sampling. Honeycomb's columnar storage handles this natively: Capability Traditional Logs Honeycomb Query by arbitrary field Pre-index or full scan Instant (columnar) GROUP BY high-cardinality field Expensive / limited Native BubbleUp (anomaly detection) Manual investigation Semi-automatic (select time range, BubbleUp identifies differing dimensions) Heatmap visualization Requires pre-aggregation Raw events For FSx for ONTAP audit logs, this means you can ask questions like: "Which

2026-05-31 原文 →
AI 资讯

Introduction to n8n: Beginner Course Summary

In this blog, I’ll give a clear brief summary of the n8n beginner course . You can watch the full video course on the official n8n website (link in the references below). What is n8n? n8n is a powerful workflow automation platform that combines AI capabilities with business process automation. It offers a node-based visual interface while giving you full control to write custom JavaScript or Python code directly in the canvas. APIs and Webhooks Understanding APIs An API (Application Programming Interface) allows different applications to communicate with each other. Almost every modern app has an API you can connect to. Example: Google Sheets API lets you read or update data in spreadsheets. When working with APIs, we make requests and receive responses . Components of an HTTP Request There are four main components: URL – The unique address of the resource (page, image, data, etc.). Includes: Scheme, Host, Port (optional), Path, Query Parameters (optional). Method – Defines the action you want to perform: GET – Retrieve data POST – Send data PUT / PATCH / DELETE – Update data (less common) Headers – Provide additional context (language, device type, location, etc.). Body – Contains data being sent (used mainly with POST requests). Authentication (Credentials) To prove you’re allowed to make a request: API Key (via query parameter or header) OAuth (most secure common method) HTTP Response Components Status Code – Tells if the request was successful: 200 = Success 401 = Unauthorized 404 = Not Found 500 = Server Error Headers – Metadata about the response (content type, length, expiration, etc.). Body – The actual data returned (usually JSON, HTML, or binary). What are Webhooks? Webhooks are used when an external service needs to notify your workflow automatically (e.g., every time a payment is made in Stripe). You provide a URL that receives a POST request when the event occurs. Nodes in n8n Nodes are the building blocks of every workflow. There are three main categor

2026-05-31 原文 →
AI 资讯

Claude Code's workflow docs are a menu.

Here is what a real solo founder orders. $ git worktree list ~/app a1b2c3d [ main] ~/app-review e4f5g6h [ review-branch] ~/app-content i7j8k9l [ draft-post] Three checkouts. One machine. Each one runs its own Claude Code session that cannot touch the others. That is a normal workday for me. I run a one person shop. Content and code, same desk, same hour. Anthropic's common workflows page lists about a dozen recipes for everyday work, and the docs are strong. What they do not tell you is which recipes survive contact with a real workday and which ones stay theory. After running Claude Code as my whole operation, five workflows carry the load. Here is the honest split. https://code.claude.com/docs/en/common-workflows 1. Worktrees changed how I work The problem worktrees solve is collision. You ask Claude to fix a bug. While it edits, you want to keep building a feature. Same repo, two streams of edits, and now your working tree is a fight nobody wins. A git worktree is a second checkout of the same repo on its own branch. Claude runs inside it and never sees the other windows. claude --worktree feature-auth Real scenario from this week. The post you are reading was drafted in one worktree while a separate Claude session reviewed an open pull request in another. Neither touched the other's files. When the review finished I merged, came back to the draft, and never lost my place. If you take one workflow from the docs, take this one. The setup cost is close to nothing and parallel agents stop stepping on each other. 2. Subagents protect the one resource you cannot buy more of The model's working memory is your budget. Every file Claude reads to answer a question spends it. Ask "how does our auth refresh work" in a large repo and Claude reads a pile of files to answer. Those files now sit in the window for the rest of the session, crowding out the work you care about. Delegate that to a subagent. use a subagent to investigate how our auth system handles token refresh The

2026-05-31 原文 →
AI 资讯

Building a home server with a mini PC

Having a server at home opens up a huge range of possibilities. I'd been thinking about setting one up for a while, and when I finally got started, I realised that half the process was simply deciding what to buy and what to install. So what is a home server actually good for? There are obvious advantages like cutting SaaS costs or gaining privacy, but there's one that matters more to me than all the others: learning . In this post I'll walk through the process, the options I considered and why I ended up building my server around a Beelink S12 Pro running Proxmox VE . Why a mini PC? The first decision is form factor. The most common options are: An old PC or laptop from the cupboard. It works, but it's usually noisy, consumes a lot of power and takes up too much space. A Raspberry Pi. Small and incredibly power-efficient, but limited in RAM and processing power for running several services at once. A NAS. A solid choice if storage is the main priority, but the price climbs quickly. A mini PC. Small, silent, low power consumption, reasonable price. Clear winner. The mini PCs I considered In 2025, there are three families that make sense for a home lab: Intel N95 / N100 is probably the most popular choice right now for this kind of use. Very good energy efficiency, full virtualisation support and highly competitive prices. The N100 is more efficient than the N95; the N95 wins slightly on raw performance but at the cost of a bit more power draw. There are countless manufacturers building models around these chips, and the difference between them is usually minimal: what varies is the connectivity, the stock RAM and the after-sales support. Mac Mini deserves a mention because it's one of the most well-known options on the market. Performance is excellent and power consumption is surprisingly low, but for me the problem is the price — clearly higher than a Chinese mini PC — and I don't need something like that to get started. Fanless mini PCs (no fan). Fully passive mod

2026-05-31 原文 →
AI 资讯

Great Stack to Doesn't Work #3 — Redis: "99% Cache Hit Ratio, System Down"

A survival guide for when everything goes wrong in production. Your Redis dashboard looks perfect. Hit ratio: 99.2%. Latency: sub-millisecond. Memory usage: 60% of available. Every metric says healthy. Then at 2:47 PM, your API starts returning 500s. Response times spike to 30 seconds. Users can't log in. The dashboard still shows 99% hit ratio because the cache is working — it's serving cached errors to everyone equally fast. Redis is doing exactly what you told it to do. The problem is what you told it to do. Why Single-Threaded Is Fast (Until It Isn't) Redis processes commands on a single thread. No locks. No context switching. No synchronization overhead. One CPU core, fully utilized, can handle 100K+ operations per second because it never waits for another thread to release a lock. The event loop model (similar to Node.js) multiplexes thousands of client connections on a single thread using non-blocking I/O. Read a request, process it, write the response, move to the next. When your commands are simple — GET, SET, INCR — each one takes microseconds. The trap: slow commands block everything. KEYS * on a million-key database? That's a full keyspace scan on the main thread. While it runs, every other client waits. SORT on a large set? Same. LRANGE on a list with 10 million elements? Same. Redis 6.0 introduced I/O threading ( io-threads config) for reading and writing network data on multiple threads, but command execution is still single-threaded. Redis 7.0 improved this further, but the fundamental model hasn't changed. Long-running commands on the main thread stall everything. Rules: Never use KEYS in production. Use SCAN instead — it's cursor-based and returns results incrementally. Watch out for O(N) commands on large data structures: LRANGE , SMEMBERS , HGETALL on million-element structures. Use SLOWLOG to find commands that are blocking the event loop. Pipelining: The Easiest 10x You'll Ever Get Every Redis command involves a network round trip: send request

2026-05-31 原文 →
AI 资讯

The Bug That Passes Every Toolchain Check: Circular Dependencies in JavaScript

A circular dependency is one of the few bugs that passes every check your toolchain runs. TypeScript compiles it cleanly. The tests pass. The build succeeds. The app ships. And somewhere deep in your import graph, a developer is staring at a TypeError: X is not a constructor that disappears the moment they add a console.log . Here are the three patterns that create them, what Node.js, webpack, Rollup, and esbuild actually do with them — they don't solve the problem, they each make a different tradeoff — and how to stop them from forming. What a circular dependency actually is A circular dependency exists when module A imports from module B, which imports — directly or transitively — from module A. // user.service.ts import { formatUser } from ' ./user.utils ' ; // user.utils.ts import { UserService } from ' ./user.service ' ; // ← closes the loop Neither developer planned this. user.service.ts needed a formatter. user.utils.ts needed the service type for a helper added three sprints later. Nobody saw the cycle form — they just saw two reasonable imports. This is how every circular dependency is born: through incremental, individually sensible decisions. The 3 patterns that create them 1. Barrel files ( index.ts re-exports) Barrel files are the biggest source of accidental cycles in TypeScript projects. // features/user/index.ts — re-exports everything in the feature export { UserService } from ' ./user.service ' ; export { UserRepository } from ' ./user.repository ' ; export { UserController } from ' ./user.controller ' ; export { formatUser , validateUser } from ' ./user.utils ' ; Now every file in the user feature imports from ../user (the barrel) for cleaner paths. And any utility the barrel re-exports cannot safely import anything else from the barrel without creating a cycle. // user.utils.ts import { UserService } from ' ../user ' ; // ← imports the barrel // The barrel re-exports user.utils → user.utils imports the barrel → cycle Teams adopt barrel files for

2026-05-31 原文 →
开发者

Great Stack to Doesn't Work #2 — Kafka: "Where Did My Messages Go?"

A survival guide for when everything goes wrong in production. There's a moment every engineer who works with Kafka experiences. You check the producer. Messages are sending. You check the consumer. Nothing. The consumer group shows zero lag because there's nothing to lag behind — as far as the consumer knows, the topic is empty. But it's not empty. The messages are there. Somewhere. In some partition, at some offset, behind some configuration you set six months ago and forgot about. Kafka doesn't lose messages. But it's very good at hiding them from you. Consumer Lag: The Number Everyone Watches Wrong Consumer lag is the difference between the latest offset in a partition and the offset your consumer group has committed. Simple concept. Dangerous in practice. The mistake: treating lag as a single number. Lag is per-partition. If you have 30 partitions and one consumer is stuck on partition 17 while the others are healthy, the total lag looks manageable. But partition 17's data is hours behind, and whatever downstream system depends on that data is serving stale results. Monitor lag per partition. Tools like Burrow, Kafka Exporter for Prometheus, or even kafka-consumer-groups.sh --describe break it down. If one partition's lag is growing while others are stable, you have a stuck consumer, a hot partition, or a poison message. A poison message is a record your consumer can't process — malformed data, unexpected schema, null where it shouldn't be null. The consumer throws an exception, the offset doesn't commit, and it retries the same message forever. Lag grows. The consumer looks "alive" because it's processing — just not making progress. The fix: dead letter queues. After N retries, move the message to a separate topic, commit the offset, and move on. Alert on the dead letter topic. Investigate later. Don't let one bad record block millions of good ones. Rebalance Storms: The Silent Killer Consumer rebalancing is Kafka's mechanism for redistributing partitions acro

2026-05-31 原文 →
AI 资讯

The Same AI Model Can Perform 6x Better: Here's Why

A Stanford and Tsinghua paper ran a controlled experiment earlier this year. Same model. Same task. Different harness architecture. The result: a 6x performance gap driven entirely by the system built around the model. Not the model itself. This is not a prompt engineering insight. It is a systems architecture insight, and it changes where developers should invest their time when building agentic systems. The 6x Gap Meta-Harness tested Claude Opus 4.6 across two harness configurations on TerminalBench-2. The only variable was the scaffold: the code that manages tool calls, context windows, error recovery, and state persistence. One version scored at baseline. The other, with structured tool orchestration and context management, scored 18.4 points higher. Same inference cost. Same model. Different architecture. This pattern replicates across multiple independent studies: LangChain DeepAgents (2026): Same GPT-5.2-Codex model. Harness-only changes moved it from Top 30 to Top 5. That is a 13.7-point gain. Can Bölük (Hashline, 2026): Same model, same task. Changed the edit tool format. Performance went from 6.7% to 68.3%. That is a 10x improvement with 61% fewer tokens. Vercel's d0 agent : A production agent had 16 tools. Removing 14 of them (leaving only bash) took success rate from 80% to 100%. The bottleneck was not capability. It was decision surface. Why This Matters Practically The cheapest Haiku call with an optimised harness (37.6% on TerminalBench-2) outperformed the most expensive Opus call with a default harness (58.0%). That is at 1/50th the inference cost. Most teams are optimising at the wrong layer. They swap models, tune prompts, add retrieval. The structural leverage is in how the system manages tool calls, handles state, and recovers from failure. What Changes The practical takeaway for anyone building with AI agents: Audit your tool surface. Every tool your agent can call is a decision it must make. Vercel found 16→1 tool reduction improved everything.

2026-05-31 原文 →
AI 资讯

SQL-like Queries in FSRS Plugin for Obsidian

SQL-like Queries in FSRS Plugin for Obsidian Spaced repetition in Obsidian usually works as "show all cards with due earlier than today." That's enough for simple cases, but once you have hundreds of notes, you want to filter, sort, and select. My FSRS plugin now has a query language resembling SQL. It turns a markdown block into a live table that updates with every review. ``` fsrs-table SELECT file as "Note", r as "Retrievability", date_format(due, '%d.%m.%Y') as "Due" WHERE r < 0.7 ORDER BY r ASC LIMIT 20 ``` → the table shows the 20 most "forgotten" cards, sorted by retrieval probability. From Simple Settings to an Embedded DB Initially I planned to offer table settings using standard SQL syntax. But pretty quickly the syntax became a real query language, and the implementation itself — an embedded lightweight DB. High-level test coverage in TypeScript made it easy to iterate on functionality located in the WASM module via an AI agent. When faced with dual-language testing (TypeScript + Rust), the artificial intelligence prefers to do the job properly rather than fake it. After implementing the lexer → parser → AST → evaluator pipeline for numeric values, I extended it to strings, added filtering via WHERE, then functions. Extending the syntax or adding a function came down to a single request to the agent — and a feasibility check. What's Inside fsrs-table Supported Features SELECT — choose fields, rename via AS . WHERE — conditions with = , != , < , > , <= , >= , AND , OR . ORDER BY — sort ascending ( ASC ) or descending ( DESC ). LIMIT — cap the number of rows. date_format() — convert the due date to any text format. Available fields: Field (alias) Type Description file string path to the note due date next review date stability (s) number stability in days difficulty (d) number difficulty retrievability (r) number probability of recall (0…1) reps number total number of reviews state string New, Learning, Review, or Relearning elapsed number days since last r

2026-05-31 原文 →
AI 资讯

[Imposter syndrome] Back to the beginning (DevSecOps path)

I’ve been writing my project - Python port scanner for 9 months now. You might be wondering, “Why is it taking so long?” Most of the time was spent figuring out how raw sockets work, how to write a function for manually assembling a packet, calculating the checksum, packing the IP packet bytes, the TCP header, the pseudo-header using struct.pack, sending the packet, and how SYN scanning works. Why did I decide to take such a complicated route instead of just using Scapy? I’m a principled person and have a very exhausting yet useful skill—understanding everything. That’s how I got acquainted with big-endian, or “network byte order.” I won’t go into the details of big-endian logic, to be honest, I’m already mentally exhausted It took several evenings and nights to analyze and understand the principles—watching videos, reading RFCs, and looking at GitHub code (which I didn’t understand)—but what bothered me most was that I had to ask gemini for an explanation. As I mentioned above, I’m very principled; I can’t just copy code without understanding it, so I ask gemini for a prompt like this: “Don’t write the code for me. If I end up asking you for an example because I’m tired, explain it line by line.” Yesterday I realized I don’t fully understand Python (basics)—I don’t remember REPL—so I went to ask Gemini for advice; I don’t have anyone competent who could help me with advice. I’m not very sociable, and the only thing that’s interested me for the last four years is IT. I used to make music. Lately, something strange has been going on with my health, the day before yesterday I woke up because of a nosebleed; this has happened before, but on a larger scale. I stopped working on the scanner yesterday and decided to try writing a backup script in Python. I found an article and jotted down in Obsidian what the project should and shouldn’t do. Previously, the project used Docker, Prometheus, and Grafana. My questions: Am I a good developer, and am I even one at all? Should

2026-05-31 原文 →
AI 资讯

Does any one have any notes or comments on the Philosophy of Coding?

I started off thinking I needed to simply memorize Modules and go through each and find a way to apply each of them linearly through the docs. Thinking about it that was kind of a retarded approach, but i blame it on classroom conditioning. My inconsistent life stability as well, going off and on with studying. Anyway, I found progress in freeCodeCamp and I've took these notes: Project Completion List: Report card printer | Employee profile generator | Bill Splitter Movie ticket calculator | Weather Travel Planner | Apply Discount Function Caesar Cipher | RPG Character Creator | Pin Extractor | Number Pattern Generator Medical Data Validator | In Python, code blocks are determined by indentation. Redundancy Is A BIG Logic Problem I have in learning Python. Think of parameters as placeholder variables that act as "slots" for the values you pass into functions when you call them. To use the parameters, you have to pass in "arguments". Arguments are the values you pass to a function when you call it. In Python it seems that you should learn to do things with incredible detail and specifics. In the FCC it seems an unspoken lesson is to pay careful attention to what is not said, don't under-cut and don't exceed the expectation. That might be something to ponder later. In note taking i have also found that it is much more meaningful and efficient to only record pointers, not executions or further examples. Logic Thinking and Problem Solving are both things that have to be developed by you. They cant be memorized or given to you. You should give yourself obvious recognition to look back on, It helps you remind yourself when you think your not making progress. order matters whenever it comes to for loops Also, an if statement is NOT a for loop Memorizing isn't learning, It's memorizing. submitted by /u/Big_Example_3390 [link] [留言]

2026-05-31 原文 →
开发者

Built free app for game design and worldbuilding

Hi! I want to share a project that I work for a while. It started from idea to get rid off manual copying data from game design documents to game engine. Here you can define your game objects, their props, relations and everything will be stored in structural JSON format that can be read by Unity, Godot, Unreal and other engines. What we have now? construct **wiki-like documents **using a block editor and template system (markdown is supported too) design dialogues of your game in special graph editor create maps and prototype levels on canvas store and manage database of game objects use created objects inside engine directly or export data to customizable data formats (arbitrary JSON, CSV) Made it free and open source. Please try (have Windows and Mac builds) and give your feedback Source code: https://github.com/ImStocker/ims-creators Itch.io: https://nordth.itch.io/imsc-desktop

2026-05-31 原文 →
AI 资讯

You Have a Free AI Model Sitting in Chrome Right Now

Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is free and source-available on Github. Star git-lrc to help devs discover the project. Do give it a try and share your feedback for improving the project. You might not have noticed, but Chrome quietly started shipping a local AI model called Gemini Nano bundled right into the browser. No API keys. No cloud round-trips. No per-token cost. It just runs on your machine. The interface to talk to it is called the Prompt API , and it landed in Chrome 138. I spent some time going through the full API surface and built a playground that lets you experiment with every feature session management, streaming, structured output, multimodal input, response prefixing, and more in one page. This post walks you through all of it. Why does this matter? On-device AI flips the usual tradeoffs: Free at runtime — the model runs on the user's hardware, not your servers Private by default — no data leaves the device once the model is downloaded Works offline — after the initial download, no network required Low latency — no round-trip to a data centre The catch is that Gemini Nano is a small model. It's great for classification, summarization, Q&A on focused content, and structured extraction. It won't replace GPT-4 for complex reasoning. Think of it as a smart, free, always-available layer you can add on top of your existing product. Enabling the API The Prompt API isn't on by default in all Chrome builds. Enable two flags: Step 1 — Go to chrome://flags/#optimization-guide-on-device-model and set it to Enabled BypassPerfRequirement . Step 2 — Go to chrome://flags/#prompt-api-for-gemini-nano and enable both the base API and the multimodal option. Relaunch Chrome. Then visit chrome://on-device-internals to check the model download status. First use will trigger a download — Gemini Nano is a few gigabytes. The Playground I put together a single-file HTML playground that covers the entire API

2026-05-31 原文 →