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Redis ã® SortedSets åŒç‚¹å•é¡Œã«ã¤ã„ã¦ - blog.nekokak.org
WEB+DBã®Redisç‰¹é›†ã‚’ã²ã‚ã›ã¾ã•ã‚ãã•ã‚“ã¨å…±åŒã§åŸ·ç†ã—ã¾ã—ãŸã€‚ WEB+DB PRESS Vol.73posted with amazlet at 13.03.05è¨æ¨‚ æ´‹çˆ¾ ç™½åœŸ æ…§ å¥¥é‡Ž å¹¹ä¹Ÿ ä½è—¤ é‰„å¹³ å¾Œè—¤ ç§€å®£ mala ä¸å³¶ è¡ å ¤ æ™ºä»£ æ£®ç”° å‰µ A-Listers ã¯ã¾ã¡ã‚„2 å¤§å’Œç”° ç´” æ¾ç”° æ˜Ž å¾Œè—¤ å¤§è¼” ã²ã‚ã› ã¾ã•ã‚ã å°æž— ç¯¤ è¿‘è—¤ å®‡æ™ºæœ— ã¾ã‹ã¾ã‹èˆ¬è‹¥æ³¢ç¾…èœœ Mr. O æŠ€è¡“è©•è«–ç¤¾ å£²ã‚Šä¸Šã’ãƒ©ãƒ³ã‚ãƒ³ã‚°: 335 Amazon.co.jpã§è©³ç´°ã‚’è¦‹ã‚‹ è²·ã£ã¦ãã ã•ã„ã€‚ ã“ã®Redisç‰¹é›†ã®ç¬¬äº”ç« ã§ã¯ã€Redisã‚’ä½¿ã£ãŸãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒ©ãƒ³ã‚ãƒ³ã‚°ã«ã¤ã„ã¦å–ã‚Šä¸Šã’ãŸã®ã§ã™ãŒã€ è¨˜äº‹ä¸ã«ã‚ã‚‹åŒç‚¹å•é¡Œã«ã¤ã„ã¦ã€åŸ·ç†æ™‚ã‹ã‚‰çŠ¶æ³ãŒå¤‰ã‚ã‚Šã¾ã—ãŸã®ã§updateã—ã¾ã™ã€‚ è¨˜äº‹ä¸ã§ã¯ã€Redisã®SortedSetsã¯ã‚¹ã‚ãƒƒãƒ—ãƒªã‚¹ãƒˆã¨ã„ã†ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã‚’ä½¿ã£ã¦ã„ã‚‹ç‰¹æ€§ä¸Šã€ åŒã˜ã‚¹
y-kawaz 2013/03/06
redis

algorithm
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Rediså¸ƒæ•™æ´»å‹•å ±å‘Š ISUCON ç·¨ - unknownplace.org
æœ€è¿‘ Test::RedisServer ã¨ã‹ã‚‚ã‚ã‚‚ã‚ã¤ãã£ã¦ã¦ã°ã‚Œã¦ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€ã ã„ã¶ Redis æœŸã«ã‚ã‚Šã¾ã—ã¦ã€æœ€è¿‘ã®è¶£å‘³ã¯ï¼Ÿã£ã¦ã„ã†å•ã„ã«ã¯ã ã„ãŸã„Redisã®ã‚½ãƒ¼ã‚¹ã‚’èªã‚€ã“ã¨ã§ã™ã£ã¦ãªãã‚‰ã„ãªã®ã§ã™ãŒã€ memcached ã¨ã‹ã‚·ãƒ³ãƒ—ãƒ«ãª KVS ã¨æ¯”ã¹ã‚‹ã¨ã ã„ã¶æ©Ÿèƒ½ãŒè±Šå¯Œãªã®ã§ä½¿ã„æ–¹ã‚’è¿·ã£ãŸã‚Šã¨ã‹ãã†ã„ã†äº‹ä¾‹ã‚‚ã‚ã‚Šã€å‘¨ã‚Šã«ã‚‚ã†å°‘ã—ä½¿ãˆã‚‹äººã‚’å¢—ã‚„ã•ãªã‘ã‚Œã°åƒ•ã®æ›¸ã„ãŸã‚³ãƒ¼ãƒ‰ãŒå±žäººåŒ–ã—ã¦ã¦ã¤ã‚‰ã„æ„Ÿã˜ã«ãªã‚‹ãªãƒ¼ã£ã¦ã„ã†ã‚ã‘ã§ã€ å¸ƒæ•™æ´»å‹•ã‚’ãŠã“ãªã£ã¦ãŠã‚Šã¾ã—ã¦ã€ãã®ä¸€ç’°ã¨ã—ã¦ ISUCON2 ã«å‚åŠ ã—ã¦ãã¾ã—ãŸã®ã§ãã®å ±å‘Šã§ã™ã€‚ livedoor Techãƒ–ãƒã‚° : #isucon2 ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒ•ã‚©ãƒˆãƒ¬ãƒãƒ¼ãƒˆ æ›´æ–°çµ‚äº† å‰å›žã®å„ªå‹ãƒãƒ¼ãƒ ã«æ··ãœã¦ã‚‚ã‚‰ã£ãŸæ„Ÿã˜ã§ã ã„ã¶ã¤ã„ã¦ã‚‹æ„Ÿã˜ã‚‚ã—ã¾ã™ãŒã€è¦‹äº‹é€£è¦‡ã‚’æžœãŸã›ã€æ‡‡è¦ªä¼šã§ã‚‚ redis redis ã¨é€£å‘¼ã—ã¦ããŸã®ã§ã ã„ã¶èˆˆå‘³æŒã£ãŸæ–¹ã‚‚
y-kawaz 2012/11/07
redis
ãƒªãƒ³ã‚¯
Redis bitmaps - Fast, easy, realtime metrics -
At Spool, we calculate our key metrics in real time. Traditionally, metrics are performed by a batch job (running hourly, daily, etc.). Redis backed bit maps allow us to perform such calculations in realtime and are extremely space efficient. In a simulation of 128 million users, a typical metric such as â€œdaily unique usersâ€ takes less than 50 ms on a MacBook Pro and only takes 16 MB of memory. Spo
y-kawaz 2011/11/30
redis

tips
ãƒªãƒ³ã‚¯
Socket.IO ã¨ Express ã§ã‚»ãƒƒã‚·ãƒ§ãƒ³ã®å…±æœ‰ - Block Rockinâ€™ Codes
Socket.IO ã®ã‚µãƒ¼ãƒã¯ v0.7 ã‹ã‚‰ã‚¹ã‚¿ãƒ³ãƒ‰ã‚¢ãƒãƒ¼ãƒ³ã§ã‚‚ç«‹ã¦ã‚‰ã‚Œã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸãŒã€ Express ã®ã‚µãƒ¼ãƒä¸Šã« Socket.IO ã®ã‚µãƒ¼ãƒã‚’åŒå±…ã•ã›ã‚‹æ§‹æˆã¯å¤šã„ã¨æ€ã„ã¾ã™ã€‚ ã—ã‹ã— Socket.IO ã¯ Express ãŒ HTTP ã§ç¢ºç«‹ã—ãŸã‚»ãƒƒã‚·ãƒ§ãƒ³ã¨ã¯åˆ¥ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã‚’ç¢ºç«‹ã™ã‚‹ãŸã‚ã€ ä¾‹ãˆã°ã€ Socket.IO ã§æŽ¥ç¶šã—ãŸãƒ¦ãƒ¼ã‚¶ãŒ Express ã§èªè¨¼ã—ãŸãƒ¦ãƒ¼ã‚¶ã‹ã©ã†ã‹ç‰ãŒåˆ¤åˆ¥ã§ãã¾ã›ã‚“ã€‚ ãã“ã§ã€ Socket.IO ã§æŽ¥ç¶šã‚’ç¢ºç«‹æ™‚ã« Express ã®ã‚»ãƒƒã‚·ãƒ§ãƒ³ç”¨ã® Cookie ã‚’å–å¾—ã—ã¦ã€æŽ¥ç¶šã‚’è˜åˆ¥ã§ãã‚‹ã‚ˆã†ã«ã—ã€ ã•ã‚‰ã« Socket.IO ã§ã®ã‚„ã‚Šå–ã‚ŠãŒé•·ããªã£ã¦ã‚‚ã€ãã®é–“ã«ã‚»ãƒƒã‚·ãƒ§ãƒ³ãƒ‡ãƒ¼ã‚¿ãŒåˆ‡ã‚Œã‚‹ã“ã¨ãŒç„¡ã„ã‚ˆã†ã«ã€æ›´æ–°ã™ã‚‹å¿…è¦ãŒæœ‰ã‚Šã¾ã™ã€‚ Socket.IOv0.7 ã‚’ç”¨ã„ã¦ã“ã‚Œã‚’å®Ÿç¾ã™ã‚‹æ–¹æ³•ãŒã€ã“ã¡ã‚‰ã§ç´¹ä»‹ã•ã‚Œã¦ã„ãŸã®ã§ã€è©¦ã—ã¦ã¿ã¾ã—ãŸã€‚ So
y-kawaz 2011/08/09
redis

express

socket.io

node.js
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Redis ã® Pub/Sub ã‚’ä½¿ã£ã¦ Node.js + WebSocket ã®ã‚¹ã‚±ãƒ¼ãƒ«ã‚¢ã‚¦ãƒˆã‚’å®Ÿç¾ã™ã‚‹æ–¹æ³•
Node ã«ãŠã‘ã‚‹ã‚¹ã‚±ãƒ¼ãƒ«ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£è€ƒå¯Ÿ(Scale ç·¨)ã¨ã„ã†ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã‚’èªã‚“ã§ã€Redisã¯Pub/Subåž‹é€šä¿¡ã‚’ã‚µãƒãƒ¼ãƒˆã—ã¦ã„ã‚‹ã¨ã„ã†äº‹ã‚’çŸ¥ã‚Šã¾ã—ãŸã€‚ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã§ã‚‚è¨€åŠã•ã‚Œã¦ã„ã‚‹ã‚ˆã†ã«ã€Pub/Subã‚’ä½¿ãˆã° Node.js + WebSocket ã‚µãƒ¼ãƒã‚’ã‚¹ã‚±ãƒ¼ãƒ«ã™ã‚‹éš›ã«ã€ä¸ç¶™ã‚µãƒ¼ãƒã®å½¹å‰²ã‚’æžœãŸã™äº‹ãŒå‡ºæ¥ã‚‹ã¯ãšã§ã™ã€‚ ãã‚“ãªè¨³ã§å®Ÿéš›ã« Node.js ã¨ Redis ã‚’ä½¿ã£ã¦ Pub/Sub ã®å®Ÿé¨“ã‚’è¡Œãªã£ã¦ã¿ã¾ã—ãŸã€‚ãƒ¦ãƒ¼ã‚¶ãŒåˆ¥ã€…ã®Node.jsã‚µãƒ¼ãƒã«æŽ¥ç¶šã—ã¦ã„ã¦ã‚‚WebSocketã‚’é€šã—ã¦ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã®ã‚„ã‚Šå–ã‚Šã‚’å‡ºæ¥ã‚‹ã‚ˆã†ã«ã—ã¾ã™ã€‚ ã‚¤ãƒ¡ãƒ¼ã‚¸ã¨ã—ã¦ã¯ã“ã‚“ãªæ„Ÿã˜ã§ã™ã€‚ ä¸‹æº–å‚™# Ubuntuã®å ´åˆã¯ apt-get ã§1ç™ºã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹äº‹ãŒå‡ºæ¥ã¾ã™ã€‚ $ sudo apt-get install redis npmã§redisãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¾ã™ã€‚ $ npm i
y-kawaz 2011/06/20
ãŠã‰ã€ç´ æ™´ã‚‰ã—ã„ã€‚

node.js

websocket

pubsub

redis
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