Load Balancing
Past a certain point, web applications outgrow a single server deployment. Companies either want to increase their availability, scalability, or both! To do this, they deploy their application across multiple servers with a load balancer in front to distribute incoming requests. Big companies may need thousands of servers running their web application to handle the load. In this post we're going t
Rethinking Netflix’s Edge Load Balancing – Netflix Technology Blog – Medium
By Mike Smith, Netflix Cloud Gateway We briefly touched on some of the load balancing improvements we’ve recently been making in our Open Sourcing Zuul 2 post. In this post, we’ll go into more detail on the whys, hows and results of that work. GoalsOn the Netflix Cloud Gateway team we are always working to help systems reduce errors, gain higher availability, and improve Netflix’s resilience to fa
è² è·åˆ†æ•£è£…置：DSR(Direct Server Return)æ–¹å¼ - ã¢ã‚ーらもã®ãŠã‚‚ã¡ã‚ƒç®±ï¼šå¼•ã£è¶Šã—後
会社ã§ã¯ä¹…々ã«ã€ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®DSR(Direct Server Return）ã«ã¤ã„ã¦è©±é¡Œã«ãªã‚Šã¾ã—ãŸã€‚クライアントã‹ã‚‰ã®ãƒªã‚¯ã‚¨ã‚¹ãƒˆãƒ‘ケットã¯ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚’通ã£ã¦ã€æˆ»ã‚Šãƒ‘ケットã¯ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚’介ã•ãšã«ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã«æˆ»ã‚‹ã€ã¨ã„ã†æ–¹å¼ã§ã™ã€‚ ã“ã¡ã‚‰ã«ã¤ã„ã¦ã‚‚å°‘ã—調ã¹ã¦ã¿ã¾ã—ãŸã€‚http://d.hatena.ne.jp/yamaz/20060817 http://nosa.cocolog-nifty.com/sanonosa/2004/11/l4dsr.html　ãªã©ãŒã‚ã‹ã‚Šã‚„ã™ã„ã‹ãªã€ã¨æ€ã„ã¾ã™ã€‚ 当然ãªã®ã§ã™ãŒã€L2/L3スイッãƒãªã©ã¨æ¯”ã¹ã‚‹ã¨ã€å‡¦ç†ã—ãªãã¦ã¯ã„ã‘ãªã„ã“ã¨ãŒå¤šã„分ã€ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µï¼ˆã‚¢ãƒ—リケーションスイッãƒï¼‰ã¯ã©ã†ã—ã¦ã‚‚スループットãŒé…ããªã‚Šã¾ã™ã€‚æ•°Gbpsã®ã‚¹ãƒ«ãƒ¼ãƒ—ットã®ãƒãƒ©ãƒ³ã‚µã ã¨1000万超ãˆã‚‹å ´åˆã‚‚ã‚ã‚Šã¾ã™ã—ã・・・。Webサイトã®ä¸ã§ã‚‚ストリーミング通信ãªã©
L4スイッãƒã¯DSR構æˆã«ã™ã¹ã— - sanonosa　システム管ç†ã‚³ãƒ©ãƒ 集
大è¦æ¨¡ã‚µã‚¤ãƒˆã§ã¯L4スイッãƒã‚’DSR(Direct Server Return)構æˆã§çµ„ã‚€ã“ã¨ã¯ã‚‚ã¯ã‚„常è˜ã§ã™ã€‚ã—ã‹ã—国内ã«ã¯å¤§è¦æ¨¡ã‚µã‚¤ãƒˆãŒå°‘ãªã„ãŸã‚ã‹DSR構æˆã«ã¤ã„ã¦ã®æƒ…å ±ãŒä¸è¶³ã—ã¦ã„ã‚‹ã®ãŒç¾çŠ¶ã§ã™ã€‚L4スイッãƒã‚’扱ã£ã¦ã„るベンダーã•ã‚“ã‚‚DSR構æˆã§ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚’構築ã—ãŸã¨ã„ã†ä¾‹ã‚’ã»ã¨ã‚“ã©èžã‹ãªã„ã¨ã®ã“ã¨ã§ã™ã€‚ãã“ã§ä»Šå›žã¯DSR構æˆã®ç´¹ä»‹ã¨ãƒ¡ãƒªãƒƒãƒˆï¼†ãƒ‡ãƒ¡ãƒªãƒƒãƒˆã‚’ã”紹介ã—ã¾ã™ã€‚ ã€ä¸€èˆ¬çš„ãªæ§‹æˆã¨DSR構æˆã®é•ã„】 一般的ãªæ§‹æˆã§ã¯ã‚¹ã‚¤ãƒƒãƒã¨ã‚µãƒ¼ãƒã®é–“ã«L4スイッãƒã‚’挟ã¿è¾¼ã‚€æ§‹æˆã‚’å–ã‚Šã¾ã™ã€‚ãã‚Œã«å¯¾ã—ã¦DSR構æˆã§ã¯ã‚¹ã‚¤ãƒƒãƒã«ç›´æŽ¥L4スイッãƒã‚’接続ã—ã¾ã™ã€‚ ã“れをè¸ã¾ãˆã¦ãƒ‘ケットã®æµã‚Œã‚’見ã¦ã¿ã¾ã—ょã†ã€‚一般的ãªæ§‹æˆã§ã¯è¡Œãã®ãƒ‘ケットãŒL4スイッãƒã‚’æµã‚Œã‚µãƒ¼ãƒã«åˆ°é”ã—ã€å¸°ã‚Šã®ãƒ‘ケットもL4スイッãƒã‚’æµã‚Œã¦ã„ãã¾ã™ã€‚ãã‚Œã«å¯¾ã—ã¦DSR構æˆã§ã¯è¡Œãã®ãƒ‘ケットã¯L4スイッãƒã‚’通りã¾ã™ãŒã€å¸°ã‚Šã®ãƒ‘ケ
ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®ã‚¢ãƒ¼ã‚テクãƒãƒ£ã„ã‚ã„ã‚ - yunazuno.log
å°‘ã—å‰ã«ï¼ŒFacebookã®ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µãŒè©±é¡Œã«ãªã£ã¦ã„ãŸï¼Ž blog.stanaka.org ã“ã®ã‚¨ãƒ³ãƒˆãƒªã‚’èªã‚“ã§ï¼Œå„種Webサービス事æ¥è€…ãŒã©ã†ã„ã£ãŸãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚¹ã‚¢ãƒ¼ã‚テクãƒãƒ£ã‚’採用ã—ã¦ã„ã‚‹ã®ã‹æ°—ã«ãªã£ãŸã®ã§èª¿ã¹ã¦ã¿ãŸï¼Ž ã–ã£ãり検索ã—ãŸé™ã‚Šã ã¨ï¼ŒMicrosoft, CloudFlareã®äº‹ä¾‹ãŒè¦‹ã¤ã‹ã£ãŸã®ã§ï¼ŒFacebookã®ä¾‹ã‚‚ä½µã›ã¦ã¾ã¨ã‚ã¦ã¿ãŸï¼Ž アーã‚テクãƒãƒ£éƒ¨åˆ†ã«æ³¨ç›®ã—ã¦ã¾ã¨ã‚ãŸã®ã§ï¼Œãƒžãƒã‚¸ãƒ¡ãƒ³ãƒˆæ–¹æ³•ã‚„実装方法，ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚¹ä»¥å¤–ã®æ©Ÿèƒ½ã‚„最é©åŒ–手法ã¨ã„ã£ãŸéƒ¨åˆ†ã®è©³ç´°ã«ã¯è§¦ã‚Œãªã„ã“ã¨ã«ã™ã‚‹ï¼Ž 事例1: Microsoft Azure 'Ananta' Microsoftã®Azureã§æŽ¡ç”¨ã•ã‚Œã¦ã„ã‚‹(ã„ãŸï¼Ÿ)ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®ã‚¢ãƒ¼ã‚テクãƒãƒ£ã¯ï¼Œä¸‹è¨˜ã®è«–æ–‡ãŒè©³ã—ã„． Parveen Patel et al., Ananta: cloud scale load balancing
facebookã®13億ユーザーを支ãˆã‚‹ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µãƒ¼ã®è©± - stanaka's blog
最近ã€SREãŒè©±é¡Œã§ã™ã。 tech.mercari.com www.wantedly.com ã¨ã„ã†ã“ã¨ã§SREã«ã¤ã„ã¦èª¿ã¹ã¦ãŸã‚‰ã€SREconãªã‚“ã¦ã‚‚ã®ãŒé–‹å‚¬ã•ã‚Œã¦ã„ãŸã®ã§ä¸ã‚’見ã¦ãŸã‚‰ã€ã€ŒBuilding a Billion User Load Balancerã€ã¨ã„ã†ã‚¿ã‚¤ãƒˆãƒ«ã§Facebookã®DNS〜LBã¾ã§ã®è©±ãŒã‚ã£ãŸã®ã§ã€ãã®ãƒ¡ãƒ¢ã§ã™ã€‚ Building a Billion User Load Balancer | USENIX tl;dr tinydns + IPVS 㧠Facebookè¦æ¨¡ã¯ã„ã‘ã‚‹ httpsã®æŽ¥ç¶šç¢ºç«‹ã¯ã‹ãªã‚Šé‡ã„(RTTã®4å€ = RTT 150msã¨ã™ã‚‹ã¨GETã¾ã§600ms)ã®ã§ã€å¤ªå¹³æ´‹è¶Šãˆã¨ã‹ã¯åŽ³ã—ã„ httpsを終端ã•ã›ã‚‹CDNã¨ã‹ã¯æ´»ç”¨ã®å¯èƒ½æ€§ã‚ã‚Šãㆠ(国内ã ã‘を考慮ã™ã‚‹ãªã‚‰å½±éŸ¿ã¯è»½å¾®ã‹ã‚‚) メモ L4 LB shiv (IPVS + pyt
1
ランã‚ング
ランã‚ング
メンテナンス
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
What’s new with Robinhood, our in-house load balancing service
GCP を支ãˆã‚‹ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®è¨è¨ˆã‚’公開
{{#tags}}- {{label}}
{{/tags}}