kai
FactoryTalk Optix Cloud Manufacturing Software For manufacturers interested in a powerful, open, scalable, HMI visualization platform FactoryTalk Optix can help improve your process, efficiency and deliverables – in one easy to access tool. Take advantage of new levels of collaboration, scalability and interoperability to achieve your HMI vision. New SaaS-enabled workflows will enable your team to
ãŸã‘ã¾ã‚‹ / Kai - Amazon's Dynamo communicating with memcache protocol
_ Kai - Amazon's Dynamo communicating with memcache protocol [kai][dynamo][erlang] ã ã„ã¶å‰ [2008-02-25-1] ã«ï¼ŒPerl (POE) 㧠Amazon Dynamo ã£ã½ã„も㮠を作りã‹ã‘ã¦æ”¾ç½®ã—ã¦ã„ã¾ã—ãŸï¼Ž Erlang ã§æ›¸ãç›´ã—ã¦ï¼Œãã‚Œãªã‚Šã«å‹•ãã“ã¨ã‚’確èªã—ãŸã®ã§å…¬é–‹ã—ã¾ã™ï¼Žå å‰ã¯ Kai ã¨ã„ã„ã¾ã™ï¼Žä»Šå›žã¯ï¼Œmemcache プãƒãƒˆã‚³ãƒ«ã§ãƒ‡ãƒ¼ã‚¿ã‚’ã‚„ã‚Šå–ã‚Š ã§ãるよã†ã«ã—ã¾ã—ãŸï¼Ž Dynamo ã¨ã¯ï¼ŒAmazon ã§ä½¿ã‚ã‚Œã¦ã„るスケーラブルãªãƒãƒƒã‚·ãƒ¥ãƒ†ãƒ¼ãƒ–ル㧠ã™ï¼Žè©³ã—ã㯠[2008-01-31-1] ã«æ›¸ãã¾ã—ãŸãŒï¼Œæ¬¡ã®ã‚ˆã†ãªç‰¹å¾´ã‚’æŒã£ã¦ ãŠã‚Šï¼ŒAmazon ã®å·¨å¤§ãªã‚µãƒ¼ãƒ“スを支ãˆã¦ã„ã¾ã™ï¼Ž - ç°¡å˜ã«ã‚¹ã‚±ãƒ¼ãƒ«ã‚¢ã‚¦ãƒˆã§ãã‚‹ - 障害ã«å¼·ã„ (マシン障害ã©ã“ã‚ã‹ãƒ©ãƒƒã‚¯éšœå®³ã«ã‚‚è€ãˆã‚‹)
ãŸã‘ã¾ã‚‹ / 開発åˆå®¿ã§ Amazon Dynamo ã£ã½ã„ã‚‚ã®ã‚’開発
_ 開発åˆå®¿ã§ Amazon Dynamo ã£ã½ã„ã‚‚ã®ã‚’開発 [dynamo][perl] 週末ã«ä¼Šæ±ã®æ¸©æ³‰å®¿ã§è¡Œã‚ã‚ŒãŸé–‹ç™ºåˆå®¿ã«å‚åŠ ã—ã¦ãã¾ã—ãŸï¼Ž ãƒã‚¿ã¯ã ã„ãŸã„個人ã”ã¨ã§ï¼Œåƒ•ã¯ Amazon Dynamo [2008-01-31-1] ã£ã½ã„ ã‚‚ã®ã‚’作ã£ã¦ã¾ã—ãŸï¼Žã‚ã¨ã¯ï¼ŒWeb API 関連ã§ä»–ã®äººã‚’サãƒãƒ¼ãƒˆã—ãŸã‚Šã¨ ã‹ã§ã™ï¼Ž åˆå®¿ã«ã¤ã„ã¦ã¯â†“ã¨ã‹ã«æ›¸ã„ã¦ã‚ã‚‹ã®ã§ï¼Œçœç•¥ã§ã™ï¼Ž sonson@Picture&Software - 伊æ±æ¸©æ³‰ 山喜旅館ã§ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã—ã¦ã„ã¾ã™ï¼Ž 開発åˆå®¿ã¨ã„ã†ã‚¤ãƒ™ãƒ³ãƒˆ - ãƒžã‚¸ãƒƒã‚¯ãƒ©ãƒœç ”ç©¶å“¡ã®ç¤¾ä¼šäººãƒ‰ã‚¯ã‚¿ãƒ¼ã¸ã®é“ â– Kai, which will be yet another Amazon's Dynamo 開発ã—㟠Dynamo ã£ã½ã„プãƒã‚°ãƒ©ãƒ ã«ã¯ï¼ŒKai ã¨ã„ã†åå‰ã‚’ã¤ã‘ã¾ã—ãŸï¼Ž 出身ãŒç”²æ–市ã ã‹ã‚‰ã¨ã„ã†ã ã‘㧠(呼ã³ã‚„ã™ã„ã¨ã„ã†ã®ã‚‚よã„)，æ„味ã¯ã‚
Tsuchiya Yoshihiro: Amazon's Dynamo　
Sunday, February 10, 2008 Amazon's Dynamo　 ã“ã‚Œã¯é¢ç™½ã‹ã£ãŸã€‚ Amazon's Dynamo Amazonã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã«ã‚るストレージシステムã«ã¤ã„ã¦ã®è©±ã€‚ ーã‚ーã‹ã‚‰ãƒ‡ãƒ¼ã‚¿ãŒå¼•ã‘ã‚‹ã¨è¨€ã†ã ã‘ã®å˜ç´”ãªãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã€‚get(), put()ã®ã‚ªãƒšãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ãŒã‚ã‚‹ã 㑠ー99.9%ã®ãƒªã‚¯ã‚¨ã‚¹ãƒˆã¯300msecã§è¿”ã™ã“ã¨ã¨ã„ã†SLAãŒã‚ã‚‹ ーデータã®è¤‡è£½ã‚’内部的ã«ã¤ãる。quorumベースã§è¡Œã† ーSLAãŒåŽ³ã—ã„ã®ã§ã€writeã¯ã¨ã‚Šã‚ãˆãšæˆåŠŸã•ã›ã¦ã€çŸ›ç›¾ãŒç”Ÿã˜ãŸã‚‰ã€ã‚ã¨ã§è§£æ¶ˆã™ã‚‹ã¨ã„ã†ã‚¢ãƒ—ãƒãƒ¼ãƒ ーノード数ã¯ã‹ãªã‚Šå¤šã„よã†ã 。DHTを使ã£ã¦ãƒ‡ãƒ¼ã‚¿ã‚’分散ã•ã›ã‚‹ ーデータã®ä¸æ•´åˆã¯ã‚¢ãƒ—リケーション（ショッピングカートã¨ã‹ï¼‰ã®ãƒ¬ãƒ™ãƒ«ã§è§£æ±ºã™ã‚‹ 何ãŒé¢ç™½ã„ã¨ã„ã£ã¦ã€å®Ÿéš›ã«å‹•ã„ã¦ã„ã‚‹ã‚‚ã®ã§ã€requirementãŒã¯ã£ãã‚Šã—ã¦ã„ã‚‹ã‹ã‚‰ã§ã‚る。ノード数ãŒã‚ˆãã‚
EventuallyConsistent - çµæžœæ•´åˆæ€§
EventuallyConsistent - çµæžœæ•´åˆæ€§ 目次 ã“ã®æ–‡æ›¸ã«ã¤ã„㦠çµæžœæ•´åˆæ€§ æ´å²ã®è©± クライアントå´ã®æ•´åˆæ€§ サーãƒå´ã®æ•´åˆæ€§ ã¾ã¨ã‚ çµæžœæ•´åˆæ€§ ã“ã®æ–‡æ›¸ã«ã¤ã„㦠Werner Vogels "Eventually Consistent" ã®æ—¥æœ¬èªžè¨³ã§ã™. http://www.allthingsdistributed.com/2007/12/eventually_consistent.html 推敲æ“è¿Ž: 誤訳, タイãƒ, 訳語ã®ä¸çµ±ä¸€, ãã®ã»ã‹... è¿‘å¹´, データ複製ã®æ–‡è„ˆã§ çµæžœæ•´åˆæ€§(eventual consistency) ã«é–¢ã™ã‚‹è°è«–ãŒç››ã‚“ã . ã“ã®è¨˜äº‹ã§ã¯å¤§è¦æ¨¡ãƒ‡ãƒ¼ã‚¿ã®è¤‡è£½ã«ãŠã‘る原則や抽象, 高å¯ç”¨æ€§ã¨ãƒ‡ãƒ¼ã‚¿æ•´åˆæ€§ã®ãƒˆãƒ¬ãƒ¼ãƒ‰ã‚ªãƒ•ã«é–¢ã™ã‚‹è©±é¡Œã‚’ã„ãã¤ã‹é›†ã‚ã¦ã¿ãŸã„ã¨æ€ã†. ç¾åœ¨é€²è¡Œä¸ã®åˆ†é‡Žã§ã‚ã‚Š, å…¨ã¦ã®å®šç¾©ãŒæœ€åˆã‹ã‚‰æ˜Žå¿«ã§ã‚ã‚‹ã¨ã¯æ€ã‚ãªã„ã§ã»
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