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3è¡Œã§ã§ãる超ãŠæ‰‹è»½å…¨æ–‡æ¤œç´¢ - mixi engineer blog
梅雨。部屋干ã—ã—ãŸæ´—濯物ã«ã‚ˆã‚‹ç•°è‡é¨’ãŽã«è‹¦ã—ã‚€mikioã§ã™ã€‚今回ã¯ã€Tokyo Cabinetã®ãƒ†ãƒ¼ãƒ–ルデータベースã§è¶…ãŠæ‰‹è»½ã«å…¨æ–‡æ¤œç´¢ã‚’ã™ã‚‹æ–¹æ³•ã«ã¤ã„ã¦èª¬æ˜Žã—ã¾ã™ã€‚ 使ã„æ–¹ テーブルデータベースã«ã¤ã„ã¦ã¾ãšãŠã•ã‚‰ã„ã—ã¦ãŠãã¾ã—ょã†ã€‚Perlã‚„Rubyã®ãƒãƒƒã‚·ãƒ¥ã®ã‚ˆã†ã«ã‚³ãƒ©ãƒ åã¨ãã®å€¤ã‚’関連ã¥ã‘ãŸæ§‹é€ ã‚’ã€ä¸»ã‚ーをè˜åˆ¥åã¨ã—ã¦ä¿å˜ã™ã‚‹ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã§ã™ã€‚例ãˆã°Rubyã‹ã‚‰ãƒ‡ãƒ¼ã‚¿ã‚’ä¿å˜ã™ã‚‹ã«ä»¥ä¸‹ã®ã‚ˆã†ã«è¡Œã„ã¾ã™ã€‚データベースã§ã‚ã‚‹ã“ã¨ã‚’ã»ã¨ã‚“ã©æ„è˜ã•ã›ãªã„ã¨ã„ã†ã®ãŒç´ 敵ãƒã‚¤ãƒ³ãƒˆã§ã™ã€‚APIã¯Cã§ã‚‚Perlã§ã‚‚Rubyã§ã‚‚ã»ã¨ã‚“ã©åŒã˜ãªã®ã§ã€è¨€èªžã«ã‹ã‹ã‚らãšåŒã˜ã‚ˆã†ã«ãƒ¬ã‚³ãƒ¼ãƒ‰ã‚’æ“作ã§ãã¾ã™ã€‚ require 'tokyocabinet' include TokyoCabinet # データベースを開ã tdb = TDB::new tdb.open("casket", TDB::OWRITER
Performance comparison: key/value stores for language model counts | AI and Social Science – Brendan O'Connor
225 tweets/sec Eventually, I’ll want a purely in-memory, distributed table. That’s why I was interested in Memcached. But for development purposes, it’s very convenient to use an on-disk database. In the past I’ve used BerkeleyDB for this. (An SQL database is also possible but seems like overkill.) Ideally it would be nice to have a distributed key-value store with a heavy caching layer. Check out
Tokyo Cabinet: Beyond Key-Value Store - igvita.com
By Ilya Grigorik on February 13, 2009 It took Ruby some time to go from an infant research project by Matz to a language we've all come to know so well. Now, another Japanese developer (Mikio Hirabayashi) has all the potential to repeat this cycle with his new database project: Tokyo Cabinet. Developed and sponsored by Mixi Inc. (Japanese Facebook), it is an incredibly fast, and feature rich datab
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Tokyo Tyrantã«ã‚ˆã‚‹ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ 検索 - mixi engineer blog
ã©ã†ã¶ã¤ã®æ£®ã«ãƒãƒžã£ã¦ã€ãŸã¬ãã¡å•†åº—ãŒæ—©çµ‚ã„ã™ã‚‹é–¢ä¿‚ã§é€€å‹¤æ™‚é–“ã‚‚ã‚ã£ã•æ—©ããªã£ãŸmikioã§ã™ã€‚今回ã¯ã€Tokyo Tyrantã®ã‚ャッシュã¨Lua拡張を使ã£ã¦è¶…ãŠæ‰‹è»½ã«ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ 検索システムを作る方法ã«ã¤ã„ã¦è¿°ã¹ã¾ã™ã€‚ ユースケース 高ã„é »åº¦ã§æ›´æ–°ã•ã‚Œã‚‹Web上ã®ãƒ†ã‚ストをリアルタイムã«æ¤œç´¢ã—ãŸã„ã¨æ€ã£ãŸã“ã¨ã¯ã‚ã‚Šã¾ã›ã‚“ã‹ï¼Ÿ mixi日記やå„種ã®ãƒ–ãƒã‚°ã‚µãƒ¼ãƒ“スやRSSリーダãªã©ã§æ‰±ã†å¤§é‡ã®ã‚³ãƒ³ãƒ†ãƒ³ãƒ„を安価ã‹ã¤ç°¡å˜ã«æ¤œç´¢ã—ãŸã„ã¨æ€ã£ãŸã“ã¨ã¯ã‚ã‚Šã¾ã›ã‚“ã‹ï¼Ÿ ç§ã¯çµæ§‹ã‚ã‚Šã¾ã™ã€‚è¦ä»¶ã‚’箇æ¡æ›¸ãã™ã‚‹ã¨ä»¥ä¸‹ã®ã‚ˆã†ãªæ„Ÿã˜ã§ã—ょã†ã‹ã€‚ 最新データã®åˆè¨ˆ100万件ãらã„を検索ã§ãã‚Œã°ã‚ˆãã€å¤ã„データã¯è‡ªå‹•çš„ã«æ¶ˆãˆã¦ã»ã—ã„。 ãŸã ã—ã€æ›´æ–°ã¯ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã«ã—ã¦ã€æ›¸ã„ãŸçž¬é–“ã«æ¤œç´¢çµæžœã«åæ˜ ã•ã‚Œã¦ã»ã—ã„。 サーãƒ1å°ã§æ›´æ–°1000qpsãŠã‚ˆã³æ¤œç´¢100qpsã¯å‡¦ç†ã—ãŸã„。 å†ç¾çŽ‡ã‚ˆã‚Šã‚‚精度ã¨ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ 性をé‡è¦–
mixi Engineers’ Blog » Lua on Tyrant: DBサーãƒã«LLを組ã¿è¾¼ã‚€
é…ã‚ã®å¤ä¼‘ã¿ã§é‚£é ˆå¡©åŽŸã«è¡Œã£ã¦ããŸmikioã§ã™ã€‚ç‰§å ´ã§ã‚¢ãƒ«ãƒ‘ã‚«ã«è§¦ã£ã¦ããŸã®ã§ã™ãŒã€ã‚ã¡ã‚ƒã‹ã‚ã„ã‹ã£ãŸã§ã™ã€‚ã•ã¦ä»Šå›žã¯ã€Tokyo Tyrant（TT）ã«ã‚¹ã‚¯ãƒªãƒ—ト言語Luaã®å‡¦ç†ç³»ã‚’組ã¿è¾¼ã‚“ã§ä½¿ã†æ–¹æ³•ã«ã¤ã„ã¦è§£èª¬ã—ã¾ã™ã€‚ ã¤ã‹ã€Luaã£ã¦ä½•ï¼Ÿ Lua（公å¼ã‚µã‚¤ãƒˆã«ã‚ˆã‚‹ã¨ã€Œã‚‹ãƒ¼ã‚（LOO-ah）ã€ã¨ç™ºéŸ³ï¼‰ã¨ã„ã†è¨€èªžã®åå‰ã¯èžã„ãŸã“ã¨ãŒã‚ã£ã¦ã‚‚ã€æ•°ã‚るマイナー言語ã®ã²ã¨ã¤ã¨æ€ã£ã¦ç‰¹ã«æ°—ã«ã‹ã‘ã¦ã„ãªã„人も多ã„ã¨æ€ã„ã¾ã™ã€‚ç§ã‚‚ãã†ã§ã—ãŸã€‚ã—ã‹ã—ã€ä»Šã§ã¯ã€C言語使ã„ã®ç¬¬2言語・第3言語ã¨ã—ã¦ä½¿ã†ã«ã¯ã¨ã¦ã‚‚有望ãªè¨€èªžã ã¨æ€ã£ã¦ã„ã¾ã™ã€‚ Luaã«é–¢ã™ã‚‹æ—¥æœ¬èªžã®æƒ…å ±ã¯ã¾ã 多ãã¯ãªã„ã®ã§ã™ãŒã€ä»¥ä¸‹ã®ã‚µã‚¤ãƒˆã‚’é †ã«èªã‚€ã¨ã ã„ãŸã„ã®é›°å›²æ°—ãŒæŽ´ã‚ã‚‹ã¨æ€ã„ã¾ã™ã€‚ Lua ã§çµ„ã‚“ã§ã¿ã‚‹ Lua 5.1 リファレンスマニュアル Luaã¯è¨€èªžä»•æ§˜ãŒå°ã•ã„ã®ã§ã€ã¨ã¦ã‚‚ç¿’å¾—ã—ã‚„ã™ã„ã§ã™ã€‚上記ã®ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ãƒžãƒ‹ãƒ¥ã‚¢ãƒ«ã ã‘èªã‚
mixi Engineers’ Blog » Tokyo Tyrantã«ã‚ˆã‚‹è€é«˜è² è·DBã®æ§‹ç¯‰
連休ä¸ã¯Wiiã®ãƒžãƒªã‚ªã‚«ãƒ¼ãƒˆã‚’ã‚„ã‚Šã¾ãã£ã¦ã‚„ã£ã¨VR7000越ãˆãŸmikioã§ã™ã€‚愛車ã¯ãƒžãƒƒãƒãƒ»ãƒã‚¤ã‚¯ã¨ã‚¤ãƒ³ã‚¿ãƒ¼ã‚»ãƒ—ターã§ã™ã€‚ã•ã¦ä»Šå›žã¯ã€åˆ†æ•£ãƒãƒƒã‚·ãƒ¥ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚µãƒ¼ãƒTokyo Tyrantã§mixiã®æœ€çµ‚ãƒã‚°ã‚¤ãƒ³æ™‚刻を管ç†ã™ã‚‹ã‚ˆã†ã«ã—ãŸæ™‚ã®è‹¦åŠ´è©±ã‚’書ãã¾ã™ã€‚ ãƒã‚°ã‚¤ãƒ³å‡¦ç†ã¯è² è·åœ°ç„ mixiã§ã¯ã€å…¨ã¦ã®ãƒ¦ãƒ¼ã‚¶ã«ã¤ã„ã¦ã€å„々ã®æœ€çµ‚ãƒã‚°ã‚¤ãƒ³æ™‚刻を管ç†ã—ã¦ã„ã¾ã™ã€‚「マイミクシィ一覧ã€ã‚„「ãŠæ°—ã«å…¥ã‚Šã€ãªã©ã®ç”»é¢ã§ã€å‹äººãŒè¿‘ã„時間ã«ãƒã‚°ã‚¤ãƒ³ã—ã¦ã„ã¦ã‚³ãƒŸãƒ¥ãƒ‹ã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒã¨ã‚Šã‚„ã™ã„状態ã«ã‚ã‚‹ã‹ã©ã†ã‹ç¢ºèªã§ãるよã†ã«ã™ã‚‹ãŸã‚ã§ã™ã€‚ mixiã®ã»ã¼å…¨ã¦ã®ãƒšãƒ¼ã‚¸ã¯ãƒã‚°ã‚¤ãƒ³ã—ãªã„ã¨è¦‹ã‚‰ã‚Œãªã„ページãªã®ã§ã€ã»ã¼å…¨ã¦ã®ãƒšãƒ¼ã‚¸ã«ã‚¢ã‚¯ã‚»ã‚¹ã•ã‚Œã‚‹ãŸã³ã«ãƒã‚°ã‚¤ãƒ³ç¢ºèªãŒè¡Œã‚ã‚Œã¾ã™ã€‚ã—ãŸãŒã£ã¦ã€æœ€çµ‚ãƒã‚°ã‚¤ãƒ³æ™‚刻ã¯ã»ã¼å…¨ã¦ã®ãƒšãƒ¼ã‚¸ã«ã‚¢ã‚¯ã‚»ã‚¹ã•ã‚Œã‚‹åº¦ã«æ›´æ–°ã•ã‚Œã‚‹ã“ã¨ã«ãªã‚Šã¾ã™ã€‚mixiã®ä¸ã§æœ€ã‚‚é‡ã„データベースã®ã²ã¨ã¤ã¨ã—ã¦ã€Œ
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