Zero-Downtime Restarts with HAProxy - igvita.com
By Ilya Grigorik on December 02, 2008 Putting up a maintenance page while you are doing an update and restarting your application servers is good practice, but it definitely hurts the user experience. This, in turn, translates to less frequent releases and frustration for both the developer and the users (release often, release early!). To address this, the Rails community has come up with a coupl
ãã¾ãれ日記: AjaxIMEã®HTTPサーãƒã¯ pre-pthread
C++㨠Pthreads ã§ãƒŸãƒ‹ãƒžãƒ«ãªHTTPサーãƒã‚’書ã ã«ã¦ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚µãƒ¼ãƒã®ã•ã¾ã–ã¾ãªè¨è¨ˆãƒ»å®Ÿè£…æ–¹é‡ãŒã¾ã¨ã‚られã¦ã„ã¾ã™ã€‚ 1. クライアントã”ã¨ã« fork 2. 事å‰ã« fork - å„プãƒã‚»ã‚¹ã§ accept 3. 事å‰ã« fork - ファイルãƒãƒƒã‚¯ã§ accept ã‚’ä¿è· 4. 事å‰ã« fork - Mutex ãƒãƒƒã‚¯ã§ accept ã‚’ä¿è· (PTHREAD_PROCESS_SHARED) 5. 事å‰ã« fork - ソケットディスクリプタパッシング 6. クライアントã”ã¨ã«ã‚¹ãƒ¬ãƒƒãƒ‰ç”Ÿæˆ 7. 事å‰ã«ã‚¹ãƒ¬ãƒƒãƒ‰ç”Ÿæˆ - Mutex ãƒãƒƒã‚¯ã§ accept ã‚’ä¿è· 8. 事å‰ã«ã‚¹ãƒ¬ãƒƒãƒ‰ç”Ÿæˆ - メインスレッド㧠accept AjaxIMEã®å¤‰æ›ã‚¨ãƒ³ã‚¸ãƒ³ã¯è‡ªä½œã‚µãƒ¼ãƒã§é‹ç”¨ã—ã¦ã„ã‚‹ã®ã§ã™ãŒã€åˆæœŸã®å®Ÿè£…㯠prefork〠ã™ãªã‚ã¡4番ã®å®Ÿè£…ã§ã—ãŸã€‚ ãã®å¾Œã€fork ã®éƒ¨
Nginx and Memcached, a 400% boost! - igvita.com
By Ilya Grigorik on February 11, 2008 If web architectures, performance, or scalability are topics you would like to keep on top of (who doesn't!), then chances are, you've heard of Nginx ("engine x"). Originally developed by Igor Sysoev for rambler.ru (second largest Russian web-site), it is a high-performance HTTP server / reverse proxy known for its stability, performance, and ease of use. The
Return of the HTTP overhead delay – this time without a server side component | Christian Heilmann
Return of the HTTP overhead delay – this time without a server side component Following my post yesterday about delaying the loading of avatar images to cut down on HTTP requests I was wondering if there is a way to do this without having to resort to a server side solution. In short, there is. Check out the demo page to see the script in action, and download delayHTTPoverhead.js to use in your ow
Apache 2.2 experimental/event MPM ã«é™å‚ - Backnumbers: Steps to Phantasien
å‰å›žã®ã¤ã¥ã. ãã‚‚ãã‚‚ Apache ã®ã‚³ãƒ¼ãƒ‰ã‚’èªã‚“ã ã®ã¯, Comet ã¿ãŸã„ã«ã¡ã³ã¡ã³ã¯ã‚Šã£ã±ãª HTTP ãƒãƒ³ãƒ‰ãƒ©ã‚’ C++ ã§æ›¸ã‘る基盤ã¯ãªã„ã‹ã¨ã„ã†ã‚‚ã£ã¨å£®å¤§ãªç¾å®Ÿé€ƒé¿ã®ä¸€éƒ¨ãªã®ã ã£ãŸ. (逃é¿ã¯å£®å¤§ãªã»ã©ã„ã„. ç¾å®Ÿå‘³ãŒä¹ã—ããªã‚‹ã‹ã‚‰...) 速ã„ã¨ã„ã†è©•åˆ¤ã‹ã‚‰, 最åˆã¯ lighttpd ã®ã‚³ãƒ¼ãƒ‰ã‚’眺ã‚ã¦ã„ãŸ. ã§ã‚‚ lighttpd ã®ã‚³ãƒ¼ãƒ‰ã¯ã‚„や男らã—ã™ãŽã‚‹. ã“ã®ä¸Šã§ä½œæ¥ã‚’ã™ã‚‹ã®ã¯è¾›ãã†ã . ãã‚Œã«ä¸ã®äººãŒåŒã˜è·¯ç·šã§ mod_mailbox を作る ã¨è¨€ã£ã¦ã„ã‚‹. ã“ã£ã¡ã‚’å¾…ã¤æ–¹ãŒè‰¯ã„æ°—ã‚‚ã™ã‚‹. (今ã®ã¨ã“ã‚進展ã¯ãªã•ãã†.) Apache 㯠I/O ã®å¤šé‡åŒ–ã‚’ã—ã¦ã„ãªã„ã¨ã„ã†è©±ãŒ "Apache ã®è©±" 㫠書ã„ã¦ã‚ã‚‹ã®ã‚’èªã¿ã—ょんã¼ã‚Šã—ã¦ã„ãŸãŒ, 一方㧠Apache 2.2 ã‹ã‚‰å…¥ã£ãŸ event MPM ã®ãƒžãƒ‹ãƒ¥ã‚¢ãƒ« ã«ã¯ "keep alive probl
#NetBSD Community Blog Blog Archive Need a Webserver? Fast?
The #NetBSD channel on IRCnet now has its very own place in cyberspace! NetBSD is a free, secure, and highly portable Unix-like Open Source operating system available for many platforms, from large-scale server systems to powerful desktop systems to handheld and embedded devices. Its clean design and advanced features make it excellent in both production and research environments, and the source c
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