roguelazer's website: etcd, or, why modern software makes me sad
Once upon a time in 2013, there was a tool called etcd which was a really lightweight database written around the Raft consensus algorithm. This tool was originally written in 2013 for a bullshit unsuccessful project called CoreOS Container Linux that was EOL'd several years ago, but that doesn't really matter --- etcd was greater than its original use-case. Etcd provided a convenient and simple s
HTMLè¦ç´ ã‹ã‚‰HTTP/2優先度を指定ã™ã‚‹ Priority Hints ãŒå‹•ã„㟠- ASnoKaze blog
HTTP/2ã«ã¯ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰HTTPリクエストã®å„ªå…ˆåº¦ã‚’指定ã™ã‚‹ã“ã¨ãŒã§ãる。サーãƒã¯ãã®å„ªå…ˆåº¦ã«åŸºã¥ã„ã¦HTTPレスãƒãƒ³ã‚¹ã‚’è¿”ã™(無視ã—ã¦ã‚‚良ã„)。 一般的ã«ã¯ãƒ–ラウザ自身ãŒåˆ¤æ–ã—ã€ãƒšãƒ¼ã‚¸ã®ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã‚’æ—©ãã™ã‚‹ãŸã‚ã«CSSãªã©ã¯å„ªå…ˆåº¦ã‚’高ãã€ç”»åƒã¯å„ªå…ˆåº¦ã‚’低ãè¨å®šã—ã¦ã„る。 一方ã§ã€Webサイトを作るå´ã¨ã—ã¦ã¯ã€æœ€åˆã«è¡¨ç¤ºã•ã‚Œã‚‹é ˜åŸŸ(Above the fold)ã®ç”»åƒã‚’優先度高ãã—ã¦ã»ã—ã„ã¨è¡Œã£ãŸã“ã¨ã‚‚ã‚ã‚‹ã ã‚ã†ã€‚ ãã“ã§ã€HTMLã‹ã‚‰ãƒªã‚¯ã‚¨ã‚¹ãƒˆã®å„ªå…ˆåº¦ã‚’指示ã§ãる「Priority Hintsã€ã¨ã„ã†ä»•æ§˜ã®æ¨™æº–化ãŒé€²ã‚られã¦ã„る。 例 ã™ã§ã«ã€Chrome Canary (71)ã§å‹•ä½œã™ã‚‹ã‚ˆã†ãªã®ã§è©¦ã™ã€‚ importanceã«"high"ã‚„"low"を指定ã™ã‚‹ <img src="img/1.png" importance="high"> <img src="img/2.pn
HTTP/2㧠速ããªã‚‹ã¨ã ãªã‚‰ãªã„ã¨ã
ãŸã„ã¸ã‚“é…ã‚Œã°ã›ãªãŒã‚‰ã€YAPC::Okinawa 2018 ONNNASONã§ä½¿ç”¨ã—ãŸã‚¹ãƒ©ã‚¤ãƒ‰ã‚’ã€ã“ã¡ã‚‰ã«ã¦å…¬é–‹ã™ã‚‹æ¬¡ç¬¬ã§ã™ã€‚ ベンãƒãƒžãƒ¼ã‚¯ã®é›£ã—ã•ã¨ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã®å¥¥æ·±ã•ã€æ¥½ã—ã•ã‚’共有ã§ããŸçµæžœãŒãƒ™ã‚¹ãƒˆãƒˆãƒ¼ã‚¯è³žã«ã¤ãªãŒã£ãŸã®ã‹ãªã¨è€ƒãˆã¦ã„ã¾ã™ã€‚ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—ãŸï¼†ä»Šå¾Œã¨ã‚‚よã‚ã—ããŠé¡˜ã„ã„ãŸã—ã¾ã™ã€‚ HTTP/2㧠速ããªã‚‹ã¨ã ãªã‚‰ãªã„ã¨ã from Kazuho Oku
Introduction to modern network load balancing and proxying
It was brought to my attention recently that there is a dearth of introductory educational material available about modern network load balancing and proxying. I thought to myself: How can this be? Load balancing is one of the core concepts required for building reliable distributed systems. Surely there must be quality information available? I searched and found the pickings are indeed slim. The
Brotli を用ã„ãŸé™çš„コンテンツé…信最é©åŒ–㨠Accept-Encoding: br ã«ã¤ã„㦠| blog.jxck.io
Intro High Sierra ã«ä¹—ã‚‹ Safari 11 㧠Brotli 対応ãŒã•ã‚Œã‚‹ã¨ã„ã†ã“ã¨ã§ã€ãƒ¡ã‚¸ãƒ£ãƒ¼ãƒ–ラウザ㮠Brotli 対応ãŒæ¦‚ãæƒã†ã“ã¨ã«ãªã‚‹ã€‚ ãã“ã§ã€æœ¬ã‚µã‚¤ãƒˆã‚‚ Brotli ã«ã‚ˆã‚‹é™çš„コンテンツé…ä¿¡ã«å¯¾å¿œã—ãŸã€‚ brotli brotli 㯠Google ãŒé–‹ç™ºã—ãŸæ–°ã—ã„圧縮形å¼ã§ã‚る。 Brotli Compressed Data Format LZ77 ã¨ãƒãƒ•ãƒžãƒ³ç¬¦å·åŒ–ã‚’åˆã‚ã›ãŸã‚‚ã®ã§ã‚ã‚Šã€å…ƒã€…㯠WOFF2 ã®ä»•æ§˜ã®ä¸€éƒ¨ã¨ã—ã¦ä½œã‚‰ã‚ŒãŸã‚‚ã®ãŒã€æ±Žç”¨åŒ–ã•ã‚ŒãŸã‚‚ã®ã§ã‚る。 éŽåŽ»ã«å…¬é–‹ã•ã‚Œã¦ã„ã‚‹ zopfli ã¨æ¯”ã¹ã¦ã‚‚ã€ã•ã‚‰ã«åœ§ç¸®çŽ‡ãŒ 20-26% å‘上ã—ã¦ãŠã‚Šã€è§£ç”速度㯠zlib 相当ã¨ã•ã‚Œã¦ã„る。 ã“ã®åŠ¹æžœã«å¯„与ã™ã‚‹ç‰¹å¾´çš„ãªè¦å› ã¨ã—ã¦ã€ä»•æ§˜ã«å«ã¾ã‚Œã‚‹è¾žæ›¸ãŒæŒ™ã’られる。 Static Dictionary 圧縮アルゴリズムã¯ã€ç°¡å˜ã«è¨€ãˆã°é »å‡ºã™ã‚‹ä¸€è‡´éƒ¨åˆ†
Shibu's Diary: 「Real World HTTPã€ãŒå‡ºç‰ˆã•ã‚Œã¾ã™ï¼
昨年ã‹ã‚‰æ›¸ã„ã¦ã„ãŸReal World HTTPãŒAmazonã®ãƒšãƒ¼ã‚¸ã«è¡¨ç¤ºã•ã‚Œã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚最åˆã«ã‚³ãƒŸãƒƒãƒˆã—ãŸã®ã¯æ˜¨å¹´ã®8/1ã§ã™ãŒã€ãŸã¶ã‚“ã€ãã®æ•°ãƒ¶æœˆå‰ã‹ã‚‰æ›¸ã始ã‚ã¦ã„ãŸã¨æ€ã†ã®ã§ã€ã»ã¼ä¸¸ä¸€å¹´ã§ã™ã€‚途ä¸ã§ASCII.jpã®ã‚·ã‚¹ãƒ†ãƒ プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®é€£è¼‰ãŒå§‹ã¾ã£ãŸã‚Šã€Software Designã«Sphinxã«ã¤ã„ã¦å¯„稿ã—ãŸã‚Šã€ã‚‚ã†ï¼‘ã¤åˆ¥ã®ç¿»è¨³ã®ä¼ç”»ãŒã‚ã£ãŸã‚Šã€ä¸‰å¥³ãŒ7/4ã«ç”Ÿã¾ã‚ŒãŸã‚Šã€ãªã‹ãªã‹ãƒãƒ¼ãƒ‰ãªä¸€å¹´é–“ã§ã—ãŸã€‚ ãªãŠã€è¡¨ç´™ã¯çš†ã•ã‚“ãŒçŸ¥ã£ã¦ã„ã‚‹ã‚‚ã®ã¨ã¯ã¡ã‚‡ã£ã¨é•ã†ã®ã§ã™ãŒã€ç³»çµ±çš„ã«ä¸€ç•ªè¿‘ã„ã®ãŒãƒã‚·ãƒ“ãƒã‚³ã‚¦ã•ã‚“らã—ãã€å’Œåã‚‚ãã‚Œã—ã‹ãªã„ãã†ã§ã™ã€‚ç‹™ã£ã¦ã„ãŸã‚ã‘ã§ã¯ãªãã€ãã‚‚ãも出版時期ã«ã¯ã‚¢ãƒ‹ãƒ¡ã‚‚終ã‚ã£ã¦ã—ã¾ã£ã¦ã„ã‚‹ã—ã€è©±é¡Œã®å‹•ç‰©ã¯è¾žã‚ãŸã»ã†ãŒè‰¯ã•ãã†ã€ã¨ã„ã†è©±ã‚’ã—ã¦ã„ãŸã®ã§ã™ãŒã€å¶ç„¶ã“ã‚ŒãŒé¸ã°ã‚Œã¾ã—ãŸã€‚ 本ã®å†…容ã®ç´¹ä»‹ è£è¡¨ç´™ã®ç´¹ä»‹ã¯ã“ã‚“ãªæ„Ÿã˜ã§ã™ã€‚ 本書ã¯HTTPã«é–¢ã™ã‚‹æŠ€è¡“
Rust ã® HTTP モックライブラリを使ã£ã¦ã¿ãŸ
Rust 㧠Web API クライアントを作æˆã—ãŸã®ã§ã€ãã®ãƒ†ã‚¹ãƒˆã‚’実行ã§ãるよã†ã«ã“ã¡ã‚‰ã® Mockito ã¨è¨€ã† HTTP モックライブラリを使ã£ã¦ã¿ãŸã€‚ 利用方法 使ã„æ–¹ã¨ã—ã¦ã¯ã€ä¸‹è¨˜ã®è¨å®šã‚’ã™ã‚‹ã€‚ （ã“ã¡ã‚‰ã®ãƒ‰ã‚ュメント ã«æ›¸ã‹ã‚Œã¦ã„る通りã ãŒã€‚。） テスト用㮠URL を用æ„ã—ã€ãƒ†ã‚¹ãƒˆæ™‚ã¯ãã¡ã‚‰ã«å¯¾ã—ã¦ã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’投ã’るよã†ã«ã™ã‚‹ レスãƒãƒ³ã‚¹ã®å†…容を定義ã—ã€ãã®ãƒ¬ã‚¹ãƒãƒ³ã‚¹ã‚’è¿”ã—ã¦æ¬²ã—ã„ URL を指定ã™ã‚‹ テスト用㮠URL を用æ„ã™ã‚‹ ã“ã‚Œã¯ã€ä¸‹è¨˜ã®é€šã‚Šã€ãƒ•ãƒ©ã‚°ã‚’使用ã—ã¦ã€å®Ÿéš›ã«å®Ÿè¡Œã™ã‚‹ URL ã¨ãƒ†ã‚¹ãƒˆç”¨ã® URL ã‚’ãã‚Œãžã‚Œå®šç¾©ã™ã‚Œã°è‰¯ã„ã ã‘。 ã“ã†ã™ã‚‹ã“ã¨ã«ã‚ˆã‚Šã€ãƒ†ã‚¹ãƒˆæ™‚ã«ãƒ“ルドã•ã‚Œã‚‹å ´åˆã¯ã€ãƒ¢ãƒƒã‚¯ã® URL ã«å¯¾ã—ã¦ã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’投ã’るよã†ã«ãªã‚‹ã€‚ レスãƒãƒ³ã‚¹å†…容をè¨å®šã™ã‚‹ è¿”ã—ã¦æ¬²ã—ã„レスãƒãƒ³ã‚¹ãƒ˜ãƒƒãƒ€ã‚„ボディã®å€¤ã‚’ビルダーãƒã‚¿ãƒ¼ãƒ³ã®ã‚ˆã†ã«ä½œæˆã™ã‚‹ã€‚ モックを作æˆã™
Rust asynchronous HTTP server with tokio and hyper
In the two last weeks, I worked on a project: writing a small REST API server in Rust. The goal was to compare the performance between this one and the one wrote in C. To do so, we decided to use tokio and hyper. The C server has been written with a different design: threading and epolling. Asynchronous and Rust Recently, hyper switched to tokio in order to perform asynchronous I/O on sockets. It
Async HTTP benchmarks on PyPy3
Since Mozilla announced funding, we've been working quite hard on delivering you a working Python 3.5. We are almost ready to release an alpha version of PyPy 3.5. Our goal is to release it shortly after the sprint. Many modules have already been ported and it can probably run many Python 3 programs already. We are happy to receive any feedback after the next release. To show that the heart (asyn
Envoy: C++ L7 proxy and communication bus
Envoy Tweet Docs C++ L7 proxy and communication bus Envoy is an open source edge and service proxy, from the developers at Lyft Out of process architecture Envoy is a self contained server. It runs alongside any application language or framework. At Lyft we currently use it to proxy for PHP, Python, Go, Java, and C++. HTTP/2 Envoy has first class support for HTTP/2 for both incoming and outgoing c
Async IO in Rust (part III)
This is the third article in series of articles about the design of Rotor, a library doing asynchronous IO in Rust. It has been about three months since my first article was published. And my first asynchronous code written in rust is almost a year old. That code still works in production (in a non-mission-critical role). This is to say that it’s time to stop rewriting rotor on every occasion and
GitHub - h2non/imaginary: Fast, simple, scalable, Docker-ready HTTP microservice for high-level image processing
Fast HTTP microservice written in Go for high-level image processing backed by bimg and libvips. imaginary can be used as private or public HTTP service for massive image processing with first-class support for Docker & Fly.io. It's almost dependency-free and only uses net/http native package without additional abstractions for better performance. Supports multiple image operations exposed as a si
CoAP — Constrained Application Protocol | Overview
RFC 7252 Constrained Application Protocol “The Constrained Application Protocol (CoAP) is a specialized web transfer protocol for use with constrained nodes and constrained networks in the Internet of Things. The protocol is designed for machine-to-machine (M2M) applications such as smart energy and building automation.†REST model for small devices Like HTTP, CoAP is based on the wildly successfu
rwasa | 2 Ton Digital
SHA256: 77bb53d7717d825515f159a3794808e1edf46ca6b515a1686df3dd6b8a94432d rwasa is our full-featured, high performance, scalable web server designed to compete with the likes of nginx. It has been built from the ground-up with no external library dependencies entirely in x86_64 assembly language, and is the result of many years' experience with high volume web environments. In addition to all of th
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lpereira/lwan: Experimental, scalable, high performance HTTP server
GitHub - oltdaniel/zap: :zap: fast http framework for rust
GitHub - imgproxy/imgproxy: Fast and secure standalone server for resizing and converting remote images
GitHub - buger/goreplay: GoReplay is an open-source tool for capturing and replaying live HTTP traffic into a test environment in order to continuously test your system with real data. It can be used to increase confidence in code deployments, configurati
Traefik Labs: Say Goodbye to Connectivity Chaos
How Sourcegraph tests in Go
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