Cassandra at eBay - Cassandra Summit 2012
2. eBay Marketplaces  97 million active buyers and sellers  200+ million items  2 billion page views each day  80 billion database calls each day  5+ petabytes of site storage capacity  80+ petabytes of analytics storage capacity 2 3. How do we scale databases?  Shard – Patterns: Modulus, lookup-based, range, etc. – Application sees only logical shard/database  Replicate – Disaster recover
Cloudian nosql casestudy_20120318
2012å¹´3月18日開催InfoTalkã«ãŠã‘るプレゼンテーション資料ã§ã™ã€‚Cloudianã®æ¦‚è¦ã€Cloudianã¸ã®Cassandraã¨Redisã®å®Ÿè£…ã€NOSQLデータベースã®æ€§èƒ½æ¯”較ã€ç‹¬è‡ªé–‹ç™ºã®HyperStoreã«ã¤ã„ã¦èª¬æ˜Žã—ã¦ã„ã¾ã™ã€‚Read less
Hadoop Futures at Structure Big Data: DataStax Brisk, EMC, and MapR
Beat the Plan: Probabilistic Strategies for Successful Software Delivery at Scale Large-scale software delivery demands managing complexity across teams and organizations. Similarly to betting strategies in Vegas, embracing probabilistic thinking helps tackle uncertainty, shifting from rigid plans to adaptive systems. By making informed bets and designing for change, leaders can control volatility
What’s new in Cassandra 0.7: expiring columns | Datastax
Deprecation warning This post covers the obsolete Cassandra 0.7. Modern Cassandra manipulates expiring columns using CQL. Original post Sometimes, data comes with an expiration date, either by its nature or because it's simply intractable to keep all of a rapidly growing dataset indefinitely. In most databases, the only way to deal with such expiring data is to write a job running periodically to
ジェミナイã€åˆ†æ•£KVS「Cassandraã€ã‚’使ã£ãŸãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒã‚°è§£æžã‚·ã‚¹ãƒ†ãƒ ã‚’OSS化
ジェミナイ・モãƒã‚¤ãƒ«ãƒ»ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ã‚ºã¯2011å¹´3月3æ—¥ã€ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒã‚°è§£æžã‚·ã‚¹ãƒ†ãƒ 「Flume-Cassandra Log Processorã€ã‚’オープンソースソフトウエア（OSS）ã¨ã—ã¦å…¬é–‹ã—ãŸï¼ˆé…布サイト）。大é‡ã®ã‚·ã‚¹ãƒ†ãƒ ãƒã‚°ã‚’瞬時ã«åˆ†æžã—ã¦ã€ã‚°ãƒ©ãƒ•ã‚£ã‚«ãƒ«ãªãƒ¬ãƒãƒ¼ãƒˆã‚’作æˆã§ãる。ãƒã‚°ä¿å˜ã«ã¯ã€OSSã®åˆ†æ•£ã‚ー・ãƒãƒªãƒ¥ãƒ¼åž‹ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ï¼ˆKVS）「Cassandraã€ã‚’使用ã™ã‚‹ã€‚ Flume-Cassandra Log Processorã§ã¯ã€ç›£è¦–対象ã®ã‚µãƒ¼ãƒãƒ¼ã§ç™ºç”Ÿã—ãŸã‚¤ãƒ™ãƒ³ãƒˆã®ãƒã‚°ã‚’ã€1秒以内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¯”例ã—ã¦ã€ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸å®¹é‡ã¨I/Oã‚’æ‹¡å¼µã§ãる。ãã®ãŸã‚ã€ã‚¯ãƒ©ã‚¹ã‚¿ãƒ¼ã®ã‚µãƒ¼ãƒãƒ¼å°æ•°ã‚’増やã™ã“ã¨ã§ã€æ•°ç™¾Tãƒã‚¤ãƒˆã®ãƒã‚°ã®æ ¼ç´ãŒå¯èƒ½ã«ãªã‚‹ã¨ã—ã¦ã„る。ãƒã‚°ã®åˆ†æžæ©Ÿèƒ½ã‚„レãƒãƒ¼ãƒˆä½œæˆæ©Ÿèƒ½ã®ã»
Cassandra 0.7ãŒç™»å ´ã€‚セカンダリンデックスã€ãƒ¡ãƒ¢ãƒªåŠ¹çŽ‡å‘上ã€å‹•çš„スã‚ーマ変更。分散カウンタã¯å®Ÿè£…ã•ã‚Œãš
The Apache Software Foundation Announces Apache Cassandra 0.7 -- FOREST HILL, Md., Jan. 11, 2011 /PRNewswire/ -- Cassandraã¯ã€NoSQLデータベースã®ä¸ã§ã‚‚ã‚ーãƒãƒªãƒ¥ãƒ¼åž‹ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã¨å‘¼ã°ã‚Œã‚‹åˆ†é‡Žã§ã‚‚ã£ã¨ã‚‚よã知られã¦ã„るソフトウェアã®1ã¤ã€‚ã‚‚ã¨ã‚‚ã¨Facebookã§å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’高速ã«å‡¦ç†ã™ã‚‹ãŸã‚ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¨ã—ã¦é–‹ç™ºã•ã‚Œã€ã‚ªãƒ¼ãƒ—ンソースã¨ã—ã¦å…¬é–‹ã•ã‚ŒãŸã‚‚ã®ã€‚ç¾åœ¨ã¯The Apache Foundationã«ã‚ˆã‚Šé–‹ç™ºãŒç¶šã‘られã¦ã„ã¾ã™ã€‚ è¿½åŠ ã•ã‚ŒãŸæ©Ÿèƒ½ Cassandra 0.7ã§ã¯ã€ä¸»ã«ãƒ¡ãƒ¢ãƒªåˆ©ç”¨åŠ¹çŽ‡ã®å‘上ã€ã‚ªãƒ³ãƒ©ã‚¤ãƒ³çŠ¶æ…‹ã§ã®ã‚¹ã‚ーマ変更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
第13回Cassandra勉強会
第13回Cassandra勉強会 nosqlを探る / Cassandra勉強会 in Tokyo 日時： 2010å¹´12月22æ—¥(æ°´) 19:00 - 21:00 ç”³è¾¼ç· åˆ‡ï¼š 2010å¹´12月22æ—¥(æ°´) 19:00 続ãã‚’èªã‚€
インフラエンジニアã®ãŸã‚ã®Cassandraæƒ…å ± 監視ãã®ï¼‘：So-net Developer Blog：So-netブãƒã‚°
Cassandraã®å„ノードã®çŠ¶æ³ã‚’モニタリングã™ã‚‹æ–¹æ³•ã‚’検討ã—ã¾ã™ã€‚ Cassandraã¯JMXã®å€¤ã‚’外部ã‹ã‚‰å‚ç…§ã§ãã‚‹ã®ã§ã€jconsoleを使ã£ã¦ãƒŽãƒ¼ãƒ‰ã®çŠ¶æ³ã‚’見るã“ã¨ãŒ ã§ãã¾ã™ãŒã€jconsole自体ãŒç›£è¦–ツールã¨ã—ã¦ã¯ä½¿ã„ã«ããã€æ™‚é–“çš„ãªæŽ¨ç§»ã‚’見るã“ã¨ãŒã§ã ãªã„ã®ã§ã€å„ノードã®JMXã®å€¤ã‚’グラフ化ã—ã¦ã¿ã¾ã™ã€‚ グラフ化ツールã«ã¯ã€Cactiを使用ã™ã‚‹ã“ã¨ã«ã—ã¾ã™ã€‚ Cactiをインストールã—ã¾ã™ã€‚ $ sudo yum install net-snmp $ sudo yum install rrdtool $ sudo yum install mysql $ sudo yum install httpd $ sudo yum install cacti Cacti用mysqlデータベースã®è¨å®šã€‚ $ mysql -u root -p Enter password: root
NoSQLã‚’RDBã®ä»£ã‚ã‚Šã«ä½¿ã†ã¨ã€ã©ã†ã„ã†æã‚ã—ã„ã“ã¨ãŒèµ·ã“ã‚‹ã‹ã€‚PARTAKEã®ä½œè€…ãŒèªžã‚‹
データベースã®ä¸–ç•Œã§ã„ã¾æ³¨ç›®ã•ã‚Œã¦ã„ã‚‹ã®ãŒNoSQL。特ã«ã‚ーãƒãƒªãƒ¥ãƒ¼åž‹ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã¯ã€ã‚°ãƒ¼ã‚°ãƒ«ã®BigTableã€Facebookã‚„TwitterãŒå†…部ã§åˆ©ç”¨ã—ã¦ã„ã‚‹Cassandraã‚„AmazonクラウドãŒæä¾›ã—ã¦ã„ã‚‹SimpleDBãªã©ã€ã™ã§ã«å®Ÿéš›ã«ä½¿ã‚れ始ã‚ã¦ã„ã¾ã™ã€‚ ã§ã¯ãã®NoSQLをリレーショナルデータベースã®ä»£ã‚ã‚Šã«ä½¿ã£ã¦ã‚·ã‚¹ãƒ†ãƒ を構築ã™ã‚‹ã¨ã©ã†ãªã‚‹ã®ã‹ï¼Ÿ 身をもã£ã¦ä½“験ã—ãŸã“ã¨ã‚’記ã—ãŸShinya Kawanakaæ°ã«ã‚ˆã‚‹ãƒ—レゼンテーション「間é•ã£ãŸæ–¹å‘ã«Cassandraを使ã£ã¦ã¿ãŸã€ãŒå…¬é–‹ã•ã‚Œã¦ã„ã¾ã™ã€‚ NoSQLを用ã„ãŸã‚·ã‚¹ãƒ†ãƒ 構築ã¯ã€ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒŠãƒ«ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã«ã‚ˆã‚‹æ§‹ç¯‰ã©ã†é•ã†ã®ã‹ï¼Ÿ ã¨ã¦ã‚‚分ã‹ã‚Šã‚„ã™ãã¾ã¨ã‚られã¦ã„ã¾ã™ã€‚ã”本人ã®æ‰¿è«¾ã‚‚ã„ãŸã ã„ãŸã®ã§ã€ãã®å†…容を紹介ã—ã¾ã—ょã†ã€‚ NoSQLを使ã£ãŸã¨ãã«èµ·ã“ã‚‹æã‚ã—ã„事例 プレゼンテーションã®ãƒ†ãƒ¼ãƒžã¯ã€ŒNoSQLã‚’
TM Emerging Trends in Data Storage and Processing Kevin Weil -- @kevinweil Analytics Lead, Twitter Stanford CS 145 November 29, 2010 Monday, November 29, 2010 Giving a talk about SQL and NoSQL in CS145 at Stanford. Lots of ##s! 1 minute ago via Twitter f
TM Emerging Trends in Data Storage and Processing Kevin Weil -- @kevinweil Analytics Lead, Twitter Stanford CS 145 November 29, 2010 Monday, November 29, 2010 Giving a talk about SQL and NoSQL in CS145 at Stanford. Lots of ##s! 1 minute ago via Twitter for iPhone Retweeted by 1 person kevinweil Monday, November 29, 2010 Introduction ‣ A Review of SQL ‣ Pop Quiz ‣ Storing Tweets ‣ Serving Tweets ‣
NoSQL3
The document discusses the Apache Cassandra NoSQL database. It describes how Cassandra uses keys to store and retrieve data, unlike SQL databases that rely on indexes. Cassandra allows for adding secondary indexes but maintains consistency through a replication technique called versioned clocks. Later versions of Cassandra added features like configurable consistency levels and improved secondary
Everybody Flumes
Everyone is integrating with ☞ Flume, the distributed, reliable, and available service for collecting, aggregating, and moving large amounts of log data. MongoDB: mongo-hadoop ☞ github.com/mongodb/mongo-hadoop Still experimental, but it has a Flume sync for storing log data into MongoDB. Cassandra: flume-cassandra-plugin☞ gitbuh.com/thobbs/flume-cassandra-plugin A new Cassandra plugin for Flume is
第2回HBaseã¨Cassandraã®è¨Žè«–会
Hisayoshi Tamaki @hisayosh I'm at 新宿駅 (Shinjuku Sta.) (新宿駅, 新宿区) w/ 22 others. http://4sq.com/7JdsNZ 2010-12-09 18:19:36
Cassandraã¨HBaseã®æ¯”較ã—ã¦å…¥é–€ã™ã‚‹NoSQL
第10回Cassandra勉強会ã«ã¦ç™ºè¡¨ã—ãŸã‚¹ãƒ©ã‚¤ãƒ‰ã«ã€å‹‰å¼·ä¼šå¾Œã®ãƒ•ã‚£ãƒ¼ãƒ‰ãƒãƒƒã‚¯ã‚’åæ˜ ã•ã›ãŸç‰©ã§ã™ã€‚Read less
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NoSQL Benchmark Source Code Available
Riptano Becomes DataStax
Halobet: Daftar Situs Slot Asli Terpercaya di Indonesia
http://agilecatcloud.com/2010/10/08/cassandra-%E3%81%AF%E3%82%A2%E3%83%A1%E3%83%AA%E3%82%AB%E6%94%BF%E5%BA%9C%E3%81%AB%E9%A3%9F%E3%81%84%E8%BE%BC%E3%81%BF%E3%80%81amazon-ec2-%E3%81%A7%E3%82%82%E5%88%A9%E7%94%A8%E3%81%A7%E3%81%8D/
More preview enhancements for Windows Azure AD Premium - Active Directory Blog - Site Home - TechNet Blogs
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