[B! cassandra] akuwanoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

akuwano id:akuwano

cassandraã«é–¢ã™ã‚‹akuwanoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (18)

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ã‚¸ã‚§ãƒŸãƒŠã‚¤ã€åˆ†æ•£KVSã€ŒCassandraã€ã‚’ä½¿ã£ãŸãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒã‚°è§£æžã‚·ã‚¹ãƒ†ãƒ ã‚’OSSåŒ–
ã‚¸ã‚§ãƒŸãƒŠã‚¤ãƒ»ãƒ¢ãƒã‚¤ãƒ«ãƒ»ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ã‚ºã¯2011å¹´3æœˆ3æ—¥ã€ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒã‚°è§£æžã‚·ã‚¹ãƒ†ãƒ ã€ŒFlume-Cassandra Log Processorã€ã‚’ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã‚½ãƒ•ãƒˆã‚¦ã‚¨ã‚¢ï¼ˆOSSï¼‰ã¨ã—ã¦å…¬é–‹ã—ãŸï¼ˆé…å¸ƒã‚µã‚¤ãƒˆï¼‰ã€‚å¤§é‡ã®ã‚·ã‚¹ãƒ†ãƒ ãƒã‚°ã‚’çž¬æ™‚ã«åˆ†æžã—ã¦ã€ã‚°ãƒ©ãƒ•ã‚£ã‚«ãƒ«ãªãƒ¬ãƒãƒ¼ãƒˆã‚’ä½œæˆã§ãã‚‹ã€‚ãƒã‚°ä¿å˜ã«ã¯ã€OSSã®åˆ†æ•£ã‚ãƒ¼ãƒ»ãƒãƒªãƒ¥ãƒ¼åž‹ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ï¼ˆKVSï¼‰ã€ŒCassandraã€ã‚’ä½¿ç”¨ã™ã‚‹ã€‚ Flume-Cassandra Log Processorã§ã¯ã€ç›£è¦–å¯¾è±¡ã®ã‚µãƒ¼ãƒãƒ¼ã§ç™ºç”Ÿã—ãŸã‚¤ãƒ™ãƒ³ãƒˆã®ãƒã‚°ã‚’ã€1ç§’ä»¥å†…ã«ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã§ã‚ã‚‹Cassandraã«ä¿å˜ã™ã‚‹ã€‚Cassandraã¯æ›¸ãè¾¼ã¿ãŒé«˜é€Ÿãªåˆ†æ•£KVSã§ã€ã‚µãƒ¼ãƒãƒ¼ã®å°æ•°ã«æ¯”ä¾‹ã—ã¦ã€ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸å®¹é‡ã¨I/Oã‚’æ‹¡å¼µã§ãã‚‹ã€‚ãã®ãŸã‚ã€ã‚¯ãƒ©ã‚¹ã‚¿ãƒ¼ã®ã‚µãƒ¼ãƒãƒ¼å°æ•°ã‚’å¢—ã‚„ã™ã“ã¨ã§ã€æ•°ç™¾Tãƒã‚¤ãƒˆã®ãƒã‚°ã®æ ¼ç´ãŒå¯èƒ½ã«ãªã‚‹ã¨ã—ã¦ã„ã‚‹ã€‚ãƒã‚°ã®åˆ†æžæ©Ÿèƒ½ã‚„ãƒ¬ãƒãƒ¼ãƒˆä½œæˆæ©Ÿèƒ½ã®ã»
akuwano 2011/03/05
ã“ã†è¨€ã†ä½¿ã„æ–¹ãªã‚‰å®Ÿç”¨çš„ã ãªãƒ¼ã€‚

cassandra

log

flume
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Cassandra 0.7ãŒç™»å ´ã€‚ã‚»ã‚«ãƒ³ãƒ€ãƒªãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ã€ãƒ¡ãƒ¢ãƒªåŠ¹çŽ‡å‘ä¸Šã€å‹•çš„ã‚¹ã‚ãƒ¼ãƒžå¤‰æ›´ã€‚åˆ†æ•£ã‚«ã‚¦ãƒ³ã‚¿ã¯å®Ÿè£…ã•ã‚Œãš
The Apache Software Foundation Announces Apache Cassandra 0.7 -- FOREST HILL, Md., Jan. 11, 2011 /PRNewswire/ -- Cassandraã¯ã€NoSQLãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ä¸ã§ã‚‚ã‚ãƒ¼ãƒãƒªãƒ¥ãƒ¼åž‹ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã¨å‘¼ã°ã‚Œã‚‹åˆ†é‡Žã§ã‚‚ã£ã¨ã‚‚ã‚ˆãçŸ¥ã‚‰ã‚Œã¦ã„ã‚‹ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã®1ã¤ã€‚ã‚‚ã¨ã‚‚ã¨Facebookã§å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’é«˜é€Ÿã«å‡¦ç†ã™ã‚‹ãŸã‚ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¨ã—ã¦é–‹ç™ºã•ã‚Œã€ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã¨ã—ã¦å…¬é–‹ã•ã‚ŒãŸã‚‚ã®ã€‚ç¾åœ¨ã¯The Apache Foundationã«ã‚ˆã‚Šé–‹ç™ºãŒç¶šã‘ã‚‰ã‚Œã¦ã„ã¾ã™ã€‚ è¿½åŠ ã•ã‚ŒãŸæ©Ÿèƒ½ Cassandra 0.7ã§ã¯ã€ä¸»ã«ãƒ¡ãƒ¢ãƒªåˆ©ç”¨åŠ¹çŽ‡ã®å‘ä¸Šã€ã‚ªãƒ³ãƒ©ã‚¤ãƒ³çŠ¶æ…‹ã§ã®ã‚¹ã‚ãƒ¼ãƒžå¤‰æ›´ã€ã‚»ã‚«ãƒ³ãƒ€ãƒªã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ãªã©ã®æ©Ÿèƒ½ãŒè¿½åŠ ã•ã‚Œã¦ã„ã¾ã™ã€‚Rackspaceã®ãƒ–ãƒã‚°Cloud:Blogã«ãƒã‚¹ãƒˆã•ã‚ŒãŸã‚¨ãƒ³ãƒˆãƒªã€ŒNe
akuwano 2011/01/21
ã‚ã‚Šã‚ƒã€ã€ã€è¨˜äº‹ã§ã¦ãŸã®ãã‚“ã€‚

cassandra

nosql
ãƒªãƒ³ã‚¯
Google Groups
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akuwano 2010/10/03
cassandra
ãƒªãƒ³ã‚¯
up and running with cassandra
Cassandra is a hybrid non-relational database in the same class as Googleâ€™s BigTable. It is more featureful than a key/value store like Riak, but supports fewer query types than a document store like Mongo DB. Cassandra was started by Facebook and later transf erred to the open-source community. It is an ideal runtime database for web-scale domains like social networks. This post is both a tutorial
akuwano 2010/08/14
cassandra

NoSQL
ãƒªãƒ³ã‚¯
Cassandraå…¥é–€ã¨ã€ã•ã‚‰ã«è©³ã—ãçŸ¥ã‚‹ãŸã‚ã®ãƒªã‚½ãƒ¼ã‚¹é›†
ã‚¯ãƒ©ã‚¦ãƒ‰æ™‚ä»£ã®æ–°ã—ã„ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¨ã—ã¦ã€éžãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒŠãƒ«ãªæ§‹é€ ã‚’æŒã¤NoSQLãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ãŒè©±é¡Œã«ãªã£ã¦ã„ã¾ã™ï¼ˆNoSQLï¼Not Only SQLã€‚å‘½åã®çµŒç·¯ã¯ã“ã¡ã‚‰ï¼‰ã€‚ãã®NoSQLã®ä¸ã§ã€ã‚‚ã£ã¨ã‚‚æ³¨ç›®ã•ã‚Œã¦ã„ã‚‹ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®1ã¤ãŒApacheã®Cassandraã§ã™ã€‚ Cassandraã¯ã€Facebookã§å¤§è¦æ¨¡ãƒ‡ãƒ¼ã‚¿å‡¦ç†ã®ãŸã‚ã«é–‹ç™ºã•ã‚Œã€ãã®å¾Œã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã¨ãªã‚Šã€ç¾åœ¨ã§ã¯Apache Software Foundationã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã¨ã—ã¦é–‹ç™ºã•ã‚Œã¦ã„ã¾ã™ã€‚ ç¾åœ¨ã€Cassandraã¯Facebookã‚„Diggãªã©ã§ä½¿ã‚ã‚Œã¦ã„ã‚‹ã€ã‚‚ã—ãã¯ä½¿ã†ã“ã¨ãŒæ¤œè¨Žã•ã‚Œã¦ã„ã‚‹ã¨ã•ã‚Œã€Twitterã§ã‚‚ï¼ˆãƒ„ã‚¤ãƒ¼ãƒˆãƒ‡ãƒ¼ã‚¿ã®æ ¼ç´ã«ã¯ä½¿ã‚ã‚Œãªã„ã‚ˆã†ã§ã™ãŒã€ãã‚Œä»¥å¤–ã®ç”¨é€”ã§ï¼‰åˆ©ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ Twitterã¨DiggãŒNoSQLã®ã€ŒCassandraã€ã‚’é¸ã¶ç†ç”± TwitterãŒã€Cassandr
akuwano 2010/07/28
cassandra

nosql
ãƒªãƒ³ã‚¯
Twitterã¯Cassandraã¸ã®æŠ•è³‡ã‚’ç¶šã‘ã‚‹ - stanaka's blog
å…ˆé€±å¾ŒåŠãã‚‰ã„ã‹ã‚‰ã€Cassandraé–¢é€£ã§è‰²ã€…å‹•ããŒã‚ã£ãŸã®ã§ã€ã¾ã¨ã‚ã¦ãŠãã¾ã™ã€‚ ä¸€ç•ªæ³¨ç›®ã•ã‚Œã‚‹Twitterã®Cassandraã¸ã®æ–¹é‡ã§ã™ãŒã€Twitterã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãƒªãƒ³ã‚°ãƒ–ãƒã‚°ã®è¨˜äº‹ã§æ˜Žã‚‰ã‹ã«ã•ã‚Œã¦ã„ã¾ã™ã€‚ We're using Cassandra in production for a bunch of things at Twitter. A few examples: Our geo team uses it to store and query their database of places of interest. The research team uses it to store the results of data mining done over our entire user base. Those results then feed into thi
akuwano 2010/07/12
è„Šé«„åå°„ã—ã¡ã‚ƒã£ã¦åçœï¼id:stanakaã‹ã£ã“ã„ã„ï¼ï¼ã‚„ã£ã±ã‚³ãƒ¼ãƒ‰ãƒ¬ãƒ™ãƒ«ã¾ã§ã‚„ã‚Šãã‚‹ã®ã¯å¿…è¦ã€‚

cassandra

twitter
ãƒªãƒ³ã‚¯
ç¬¬4å›žã€€Javaã§Cassandraã«ã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ | gihyo.jp
ã‚ãƒ¼ã‚¹ãƒšãƒ¼ã‚¹ã€ã‚«ãƒ©ãƒ ãƒ•ã‚¡ãƒŸãƒªã®è¨å®šã¯ä»¥ä¸Šã§ã™ã€‚ ä»–ã«ã‚‚ã€ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³æ•°ã‚„ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’ã©ã®ã‚ˆã†ã«è¡Œã†ã‹ãªã©ã®æŒ‡å®šãŒã‚ã‚Šã¾ã™ãŒã€ä»Šå›žã¯å‰²æ„›ã—ã¾ã™ã€‚ ã‚³ãƒŸãƒƒãƒˆãƒã‚°ã¨ãƒ‡ãƒ¼ã‚¿ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã‚’è¨å®šã™ã‚‹ æ¬¡ã¯ã‚³ãƒŸãƒƒãƒˆãƒã‚°ã¨ãƒ‡ãƒ¼ã‚¿ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã®è¨å®šã‚’è¡Œã„ã¾ã™ã€‚ Cassandraã¯ã€æ›¸ãè¾¼ã¿æ™‚ã«ã¯æ“ä½œã‚’ã™ã¹ã¦ã‚³ãƒŸãƒƒãƒˆãƒã‚°ã«è¿½åŠ ã§æ›¸ãè¾¼ã‚“ã§ã„ãã€ãã®å®Ÿä½“ï¼ˆMemtableã¨ã„ã„ã¾ã™ï¼‰ã¯ãƒ¡ãƒ¢ãƒªä¸Šã«ã‚«ãƒ©ãƒ ãƒ•ã‚¡ãƒŸãƒªã”ã¨ã«å±•é–‹ã—ã¦ã„ãä»•çµ„ã¿ã«ãªã£ã¦ã„ã¾ã™ã€‚Memtableã¯ã‚µã‚¤ã‚ºã®é–¾å€¤ç‰ã‚’ã‚‚ã£ã¦ãŠã‚Šã€ãã®é–¾å€¤ã«é”ã™ã‚‹ã¨ãƒ‡ã‚£ã‚¹ã‚¯ã«æ›¸ãå‡ºã—ã¾ã™ã€‚ã“ã®æ“ä½œã®ã“ã¨ã‚’ã€Œãƒ•ãƒ©ãƒƒã‚·ãƒ¥ã€ã¨ã„ã„ã€ãƒ‡ã‚£ã‚¹ã‚¯ã«æ›¸ãå‡ºã™æ§‹é€ ã®ã“ã¨ã‚’ã€ŒSSTableã€ã¨ã„ã„ã¾ã™ã€‚SSTableã¯ä¸€åº¦æ›¸ãå‡ºã•ã‚Œã‚‹ã¨ãã®å†…å®¹ã¯ä¸å¤‰ã§ã€å®Ÿéš›ã®ç‰©ç†ãƒ‡ãƒ¼ã‚¿ã¨ã—ã¦ã¯ä»¥ä¸‹ã®3ã¤ãŒã‚»ãƒƒãƒˆã§æ›¸ãå‡ºã•ã‚Œã¾ã™ã€‚ ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ ãƒ–ãƒ«ãƒ¼ãƒ ãƒ•ã‚£ãƒ«ã‚¿ ãƒ‡ãƒ¼ã‚¿ãƒ•ã‚¡ã‚¤ãƒ« ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯
akuwano 2010/06/08
nosql

cassandra
ãƒªãƒ³ã‚¯
â– - PolyPeaceLight
2010å¹´5æœˆ20æ—¥(æœ¨) 19:00-21:00 @ãã‚‹ãªã³å¤§å¦ Cassandra & MR (Hadoop) ãƒ ãƒãƒ‰ãƒ¼æ ¹æœ¬æ° Consistency Level ãƒ ãƒãƒ‰ãƒ¼å¯Œç”°æ° twitter: railute blog: http://intheforest.jp/blog mail: tomitakazutaka@gmail.com å…¨å›žã‚¢ã‚¸ã‚§ãƒ³ãƒ€ Cassandraã‚’è¤‡æ•°ã§ç«‹ã¡ä¸Šã’ã‚‹ ã‚³ãƒ³ã‚·ã‚¹ãƒ†ãƒ³ã‚·ãƒ¼ãƒ¬ãƒ™ãƒ«ã¨ã¯ â† ï½²ï¾ï½ºï½º ã‚´ã‚·ãƒƒãƒ—ãƒ—ãƒãƒˆã‚³ãƒ«ï¼Ÿ è¤‡æ•°ãƒŽãƒ¼ãƒ‰ã§äº‹ãªrã†è¨å®š å·¨å¤§ãªãƒ‡ãƒ¼ã‚¿ã‚’å…¥ã‚Œã¦ã¿ã‚‹ ãƒŽãƒ¼ãƒ‰ã®ã‚¹ãƒ—ãƒªãƒƒãƒˆãƒ–ãƒ¬ã‚¤ãƒ³ Base64ã§å†™çœŸã‚’çªã£è¾¼ã‚“ã ã‚Šã¯ã—ã¦ã‚‹ã€‚ãƒŽãƒ¼ãƒ‰ãŒè½ã¡ãŸã¨ã‹ãã®ä»–ã¯åŸºæœ¬çš„ã«è¦‹ã‚‰ã‚Œã„ãªã„ 5MBã‚’100æžšã¨ã‹ ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãŒåˆ‡ã‚ŒãŸæ™‚ã®ãã‚Œãžã‚Œç›¸äº’ã®å‹•ãã‚’è¦‹ã¦ã¿ãŸã„ â† ä»Šå¾Œã®å¸Œæœ› ä»Šæ—¥ã®ã‚¢ã‚¸ã‚§ãƒ³ãƒ€ Consistency Levelã¨ã¯ ãƒ‡ãƒ¼ã‚¿ã¯ä½•å‡¦ã«
akuwano 2010/05/21
cassandra
ãƒªãƒ³ã‚¯
Legacy Communities - IBM Community
If youâ€™re looking for a developerWorks forum â€” Don't panic! You are in the right place. You are here because specific IBM developerWorks forums, blogs and other Connections content have been decommissioned. This page will help you find the content you are looking for, get answers to your questions, and find a new community to call home. Where am I? You are on the IBM Community area, a collection o
akuwano 2010/05/19
cassandra

hbase

KVS
ãƒªãƒ³ã‚¯
GitHub - suguru/cassandra-webconsole: Web based console for cassandra
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akuwano 2010/05/18
cassandra
ãƒªãƒ³ã‚¯
ã‚¤ãƒ³ãƒ•ãƒ©ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ãŸã‚ã®cassandraå…¥é–€
@marqsã•ã‚“ã¨@muranetã•ã‚“ã¨ä¸€ç·’ã«hbstudy#11ã§ç™ºè¡¨ã•ã›ã¦ã„ãŸã ãã¾ã—ãŸã€‚ ã“ã‚Œã‚’æ©Ÿã«ã¨ã‹è¨€ã†ã¨ã§ã‹ã™ãŽã‚‹æ°—ãŒã—ã¾ã™ãŒCassandraãŒå›½å†…ã§ã‚‚ç››ã‚Šä¸ŠãŒã‚‹ã¨ã„ã„ãªãƒ¼ã¨æ€ã„ã¾ã™ã€‚ æ‡‡è¦ªä¼šã§ã‚‚çµæ§‹ä½¿ãŠã†ã¨ã—ã¦ã„ã‚‹æ–¹ãŒã„ãŸã‚Šã—ã¦ã†ã¡ã‚‚ã†ã‹ã†ã‹ã—ã¦ã‚‰ã‚Œãªã„ã§ã™ãï½— è³‡æ–™ã‚’ã‚ã’ã¾ã—ãŸã®ã§ã“ã¡ã‚‰ã‚ˆã‚ã—ã‹ã£ãŸã‚‰ã©ã†ãžï¼ ã‚¤ãƒ³ãƒ•ãƒ©ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ãŸã‚ã®cassandraå…¥é–€ View more presentations from Akihiro Kuwano. ã“ã‚Œã ã‘ã¯ã‹ã‹ãªã„ã¨ï¼ ç´ æ™´ã‚‰ã—ã„ä¼šã‚’é–‹ã„ã¦ä¸‹ã•ã£ã¦ã„ã‚‹ãƒãƒ¼ãƒˆãƒ“ãƒ¼ãƒ„ã®æ–¹ã€…ã‚„ã€ã‚¹ãƒ”ãƒ¼ã‚«ãƒ¼ã®æ–¹ã€…ã€æ¥ã¦ã„ãŸã ã„ãŸæ–¹ã€…ã«æ„Ÿè¬ã—ã¦ãŠã‚Šã¾ã™ éžå¸¸ã«æ¥½ã—ã‹ã£ãŸã§ã™ï¼ ãŸã ã„ã¾äºŒæ—¥é…”ã„ã§ã™w
akuwano 2010/05/15
cassandra

hbstudy
ãƒªãƒ³ã‚¯
ç¬¬1å›žã€€NoSQLã€ãã—ã¦Cassandraã¨ã¯ | gihyo.jp
NoSQLãƒŸãƒ‰ãƒ«ã‚¦ã‚§ã‚¢ã®ç‰¹å¾´ã‚’ã‚‚ã†å°‘ã—ç´°ã‹ãæŒ™ã’ã¦ã¿ã¾ã™ã€‚åˆ†é‡ã®éƒ½åˆã‚‚ã‚ã‚Šå€‹åˆ¥ã«ã¯è§¦ã‚Œã¾ã›ã‚“ãŒã€ãã‚Œãžã‚Œã®NoSQLãƒŸãƒ‰ãƒ«ã‚¦ã‚§ã‚¢ã§å·®åˆ¥åŒ–éƒ¨åˆ†ã«é–¢ã—ã¦ã¯ã‹ãªã‚Šè©³ç´°ã«èª¬æ˜ŽãŒã•ã‚Œã¦ã„ã¾ã™ã®ã§ã€ãœã²ãã¡ã‚‰ã‚’å‚ç…§ã—ã¦ã¿ã¦ãã ã•ã„ã€‚ é«˜é€Ÿã«å‹•ä½œã™ã‚‹ ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ãƒ¢ãƒ‡ãƒ«ã§ã¯ãªã„ãƒ‡ãƒ¼ã‚¿ãƒ¢ãƒ‡ãƒ« ã‚¹ã‚±ãƒ¼ãƒ«ã‚¢ã‚¦ãƒˆåž‹ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ ã‚³ãƒ¢ãƒ‡ã‚£ãƒ†ã‚£ã‚µãƒ¼ãƒã«ã‚ˆã£ã¦æ§‹ç¯‰ã•ã‚Œã‚‹ ã‚¹ã‚ãƒ¼ãƒžãƒ•ãƒªãƒ¼ SPOFï¼ˆå˜ä¸€æ•…éšœç‚¹ï¼‰ã‚’æŒãŸãªã„ è‡ªå‹•çš„ã«è¤‡æ•°å°ã¸ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã™ã‚‹ ã‚¤ãƒ™ãƒ³ãƒãƒ¥ã‚¢ãƒ«ã‚³ãƒ³ã‚·ã‚¹ãƒ†ãƒ³ã‚·ã¾ãŸã¯ä¸€è²«æ€§ã®é¸æŠžãŒå¯èƒ½ SQLã®ã‚ˆã†ãªå¼·åŠ›ãªã‚¯ã‚¨ãƒªè¨€èªžã‚’æŒãŸãšã€ã‚·ãƒ³ãƒ—ãƒ«ãªå•ã„åˆã‚ã›ã—ã‹ã§ããªã„ Cassandraã¨ã¯ä½•ã‹ NoSQLãƒŸãƒ‰ãƒ«ã‚¦ã‚§ã‚¢ã®ç†é ã¨ã„ãˆã°Google BigTableã‚„Amazon Dynamoã§ã™ãŒã€ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã®ä¸–ç•Œã§ã‚‚ã„ã‚ã„ã‚ãªã‚‚ã®ãŒå‡ºã¦ãã¦ã„ã¾ã™ã€‚ãã®ä¸ã§ã‚‚æœ€è¿‘ç‰¹ã«æ³¨ç›®ã‚’é›†ã‚ã¦ã„ã‚‹ã®ãŒã€Apach
akuwano 2010/05/15
cassandra
ãƒªãƒ³ã‚¯
Cassandra: RandomPartitioner vs OrderPreservingPartitioner
Occasionally useful posts about RIAs, Web scale computing & miscellanea When building a Cassandra cluster, the â€œkeyâ€ question (sorry, thatâ€™s weak) is whether to use the RandomPartitioner (RP), or the OrderPreservingPartitioner (OPP). These control how your data is distributed over your nodes. Once you have chosen your partitioner, you cannot change without wiping your data, so think carefully! For
akuwano 2010/05/13
cassandra
ãƒªãƒ³ã‚¯
ç¬¬2å›žã€€Cassandraã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã‹ã‚‰èµ·å‹•ã¾ã§ | gihyo.jp
å‰å›žã¯Cassandraã¨ã¯ä½•ã‹ã‚’ç°¡å˜ã«èª¬æ˜Žã—ã¾ã—ãŸã€‚ç¬¬2å›žã§ã¯ã€Cassandraã‚’å®Ÿéš›ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦é–‹ç™ºç’°å¢ƒã§å‹•ã‹ã—ã¦ã¿ã¾ã—ã‚‡ã†ã€‚ Cassandraã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã‚ˆã† ç’°å¢ƒã‚’ç¢ºèªã™ã‚‹ ã¾ãšã¯ç’°å¢ƒã®ç¢ºèªã‚’ã—ã¾ã—ã‚‡ã†ã€‚ç†è€…ã®ç’°å¢ƒã¯ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã£ã¦ã„ã¾ã™ã€‚ Windows 7 Professional Sun JDK 1.6.0_18 64bit Eclipse 3.5.1 ã“ã®é€£è¼‰ã§ã¯ãŠã‚‚ã«Windowsã§ã®ç’°å¢ƒã‚’æƒ³å®šã—ã¦ã„ã¾ã™ã€‚ãŸã ã€Cassandraã¯Javaãƒ™ãƒ¼ã‚¹ãªã®ã§ã€Macã‚„Linuxãªã©åˆ¥OSã§ã‚‚åŒæ§˜ã«å‹•ãã¯ãšã§ã™ã€‚ Cassandraã‚’ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã™ã‚‹ æœ¬é€£è¼‰ã§ã¯ç¾æ™‚ç‚¹ã§ã®æœ€æ–°ç‰ˆCassandraha 0.6.1ã‚’ä½¿ã„ã¾ã™ã€‚ä»¥ä¸‹ã®ã‚µã‚¤ãƒˆã‹ã‚‰ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã§ãã¾ã™ã€‚ The Apache Cassandra Project URLï¼šhttp://cassandra.ap
akuwano 2010/05/11
cassandra
ãƒªãƒ³ã‚¯
cassandraèª¿æŸ»ãƒ¬ãƒãƒ¼ãƒˆ
3. ï® ã¯ã˜ã‚ã« ç¾åœ¨ RDB ãŒä½¿ã‚ã‚Œã¦ãã¦ã„ã‚‹éƒ¨åˆ†ã«é–¢ã—ã¦ã€ RDB ä»¥å¤–ã§ã¯å‡ºæ¥ãªã„ã®ã‹ã‚’æ¨¡ç´¢ã™ã‚‹ noSQLï¼ˆNotOnlySQLï¼‰ã¨è¨€ã†æµã‚ŒãŒæ€¥é€Ÿã«åŠ é€Ÿã—ã¦ã„ã‚‹ã€‚ ç‰¹ã« Web ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã«ãŠã„ã¦ã¯ RDB ã¯å†—é•·ã§ã‚ã‚‹å‚¾å‘ãŒã‚ã‚Šã€ ã§ã® sharding ã‚‚ RDB é™ç•ŒãŒã‚ã‚‹ã€‚ ãã“ã§ Facebook ç¤¾ãŒé–‹ç™ºã—ãŸåˆ†æ•£ DBã€Œcassandraã€ã«ã¤ã„ã¦ã€å®Ÿéš›ã©ã®ç¨‹åº¦ä½¿ãˆã‚‹ã®ã‹ã‚’ èª¿æŸ»/æ¤œè¨¼ã—ã¦ã¿ãŸã€‚ 3 4. ï® æ¦‚è¦ Cassandra ã¯ Facebook ã§ä½œã‚‰ã‚ŒãŸåˆ†æ•£åž‹ DB ã‚µãƒ¼ãƒã§ã‚ã‚‹ã€‚ Dynamo çš„ãªå¤§è¦æ¨¡åˆ†æ•£ç®¡ç†ã¨ã€HyperTa ble ã®æ§˜ãªã‚«ãƒ©ãƒ åž‹ãƒ‡ãƒ¼ã‚¿æ§‹é€ ã‚’æŒã£ãŸ DB ã¨ãªã£ ã¦ãŠã‚Šã€é«˜å¯ç”¨æ€§ã¨å†—é•·æ€§ã‚’ä½µã›æŒã¤ã€‚ ç›®æ¨™ã¨ã—ã¦ã¯ã€ã“ã‚Œã‚‰ã‚’ä¸Šæ‰‹ãåˆ©ç”¨ã™ã‚‹ã“ã¨ã§ä»Šã¾ã§ MySQL ã§è¡Œã£ã¦ã„ã‚‹ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ ãƒ³ã¨ãƒ†ãƒ¼ãƒ–ãƒ«åˆ†å‰²ã§ã‚µãƒ¼ãƒã‚’ã‚¹ã‚±ãƒ¼ãƒ«
akuwano 2010/04/19
DB

cassandra

nosql
ãƒªãƒ³ã‚¯
Cassandra DB articles
akuwano 2010/03/21
db

cassandra
ãƒªãƒ³ã‚¯
http://www.mikeperham.com/2010/03/13/cassandra-internals-writing/
akuwano 2010/03/15
cassandra

nosql

db
ãƒªãƒ³ã‚¯
Twitterã€ã€Œæ‹¡å¼µæ€§ã¨å¯ç”¨æ€§ã€ã‚’æ±‚ã‚ã¦MySQLã‹ã‚‰Cassandraã¸ä¹—ã‚Šæ›ãˆã‚‹ | OSDN Magazine
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akuwano 2010/03/02
db

MySQL

cassandra
ãƒªãƒ³ã‚¯
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