ソーシャルゲームスケールアウトã®æ´å²1. ソーシャルゲームスケールアウトã®æ´å² gussan@Drecom Co., Ltd. Copyright © Drecom Co., Ltd. 12å¹´2月20日月曜日
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第25回　MongoDB最å‰ç·šï¼ 効果的ãªã‚·ãƒ£ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã¨ãƒãƒƒã‚¯ã‚¢ãƒƒãƒ— | gihyo.jp
「MongoDBã€ã¯ã€ã‚¹ã‚ーマレスã§ã‚ã‚‹ã“ã¨ã‚„スケールアウトãŒå®¹æ˜“ãªã“ã¨ã€ã•ã‚‰ã«ãƒ¬ãƒ—リケーションã®ã—ãã¿ãŒç”¨æ„ã•ã‚Œã¦ã„ã‚‹ã¨ã„ã£ãŸç‰¹å¾´ã‹ã‚‰æ€¥é€Ÿã«äººæ°—を集ã‚ã¦ã„ã‚‹ã€ã‚ªãƒ¼ãƒ—ンソースã®ãƒ‰ã‚ュメント指å‘データベースã§ã™ã€‚第21回ã§ã€MongoDBã®åŸºæœ¬çš„ãªã—ãã¿ã‚„開発時ã«ãŠã‘る注æ„点ãªã©ã‚’サイãƒãƒ¼ã‚¨ãƒ¼ã‚¸ã‚§ãƒ³ãƒˆã®æŠ€è¡“者ã«è§£èª¬ã—ã¦ã„ãŸã ãã¾ã—ãŸã€‚今回ã¯å¾Œç·¨ã¨ã„ã†ã“ã¨ã§ã€é‹ç”¨æ™‚ã«ãŠã‘ã‚‹ãƒã‚¤ãƒ³ãƒˆã«ã¤ã„ã¦ä¼ºã£ã¦ã„ãã¾ã™ã€‚ Ameba Picoやピグライフã§MongoDBを実é‹ç”¨ サイãƒãƒ¼ã‚¨ãƒ¼ã‚¸ã‚§ãƒ³ãƒˆã«ãŠã„ã¦ã€MongoDBã¯ã™ã§ã«ã„ãã¤ã‹ã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§æ´»ç”¨ã•ã‚Œã¦ã„ã¾ã™ãŒã€ãã®1ã¤ã«ã‚¢ãƒ¡ãƒªã‚«å‘ã‘ã®ã‚¢ãƒ¡ãƒ¼ãƒãƒ”ã‚°ã§ã‚ã‚‹Ameba PicoãŒæŒ™ã’られã¾ã™ã€‚æ¾ä¸‹é›…å’Œæ°ã¯2011å¹´1月ã«å…¥ç¤¾ã—ã€ã“ã®Ameba Picoã®é‹ç”¨ã«ã‚¢ã‚µã‚¤ãƒ³ã•ã‚ŒãŸã“ã¨ã§MongoDBを使ã†ã“ã¨ã«ãªã£ãŸã¨è©±ã—ã¾ã™ã€‚ 「å‰è·ã§ã¯MongoDBを使
Announcing MySQL-MHA: "MySQL Master High Availability manager and tools"
I have published "MySQL MHA" that fully automates MySQL master failover. You can also get commercial support from SkySQL. Let's try MHA today! Today I'm happy to announce that I have released MySQL-MHA: MySQL Master High Availability manager and tools as an open source software (GPL v2 license). The below is a part of documentation of MHA. I'm glad if you are interested in MHA. A primary objective
第8回　Perlã«ã‚ˆã‚‹å¤§è¦æ¨¡ã‚·ã‚¹ãƒ†ãƒ 開発・è¨è¨ˆã®ãƒ„ボ（1） | gihyo.jp
本連載ã§ã¯ç¬¬ä¸€ç·šã®Perlãƒãƒƒã‚«ãƒ¼ãŒå›žæ›¿ã‚ã‚Šã§åŸ·ç†ã—ã¦ã„ãã¾ã™ã€‚今回ã®ãƒãƒƒã‚«ãƒ¼ã¯mixiã®åºƒæœ¨å¤§åœ°ã•ã‚“ã§ã€ãƒ†ãƒ¼ãƒžã¯ã€Œå¤§è¦æ¨¡ã‚·ã‚¹ãƒ†ãƒ 開発・è¨è¨ˆã®ãƒ„ボã€ã§ã™ã€‚ 仕事やOSS（Open Source Software）プãƒã‚¸ã‚§ã‚¯ãƒˆã§Perlを用ã„ãŸå¤šäººæ•°é–‹ç™ºã‚’ã™ã‚‹ã«ã‚ãŸã£ã¦æ°—ã‚’ã¤ã‘ã‚‹ã¹ãã“ã¨ã‚„ã€å“質をç¶æŒã™ã‚‹ãŸã‚ã®ãƒŽã‚¦ãƒã‚¦ã‚’ã€å›½å†…最大級ã®Perlシステムã§ã‚ã‚‹mixiã®äº‹ä¾‹ã‚’ベースã«ç´¹ä»‹ã—ã¾ã™ã€‚コーディング上ã®å‘½åã«é–¢ã™ã‚‹è€ƒãˆæ–¹ã‹ã‚‰ã€å¤§è¦æ¨¡ã‚¢ãƒ¼ã‚テクãƒãƒ£ã®è¨è¨ˆã‚„å“質ã®æ•°å€¤åŒ–ã¾ã§ã€ãƒŸã‚¯ãƒã‹ã‚‰ãƒžã‚¯ãƒã«è‡³ã‚‹ãƒãƒªã‚·ãƒ¼ã‚„テクニックを駆ã‘足ã§è§£èª¬ã—ã¾ã™ã€‚ ãªãŠã€ä»Šå›žã®å†…容ã¯ï¼ˆâ æ ªâ ）ミクシィã®2010年度ã®æ–°å’エンジニア技術教育メニューã‹ã‚‰ã®æŠœç²‹ã«ãªã‚Šã¾ã™ã€‚ã“ã‚Œã‹ã‚‰Perl ã‚’ã¯ã˜ã‚ã¨ã™ã‚‹LL（Lightweight Languageã€è»½é‡è¨€èªžï¼‰ã‚’仕事ã§ä½¿ã†ã¨ã„ã†ãƒ•ãƒ¬ãƒƒã‚·ãƒ¥ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ã¿ãªã•ã‚“ã«ã‚‚ã€ãœã²ã”一
MongoDB + node.js ã§ä½œã‚‹ã‚½ãƒ¼ã‚·ãƒ£ãƒ«ã‚²ãƒ¼ãƒ
The document discusses using node.js with MongoDB. It includes examples of basic CRUD operations using the node.js driver and MongoDB native driver. It also discusses ORM libraries like Mongoose that provide an abstraction layer. The document contains code samples for performing inserts, updates, finds and counting documents using the native node.js driver and Mongoose.Read less
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ミツãƒãƒãƒ¯ãƒ¼ã‚¯ã‚¹ã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã¯ã€ã€Œæœˆé–“57å„„PVã€ã¨ã„ã†å·¨å¤§ãªãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚’ã•ã°ããŸã‚ã€ã•ã¾ã–ã¾ãªæŠ€è¡“を駆使ã—ã¦ã‚¤ãƒ³ãƒ•ãƒ©ã‚’構築ã—ã¦ã„る。主ã¨å‰¯ã®2本立ã¦ã§ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚’é‹ç”¨ã—ã€300å°ã®ã‚µãƒ¼ãƒã‚’使ã„ãªãŒã‚‰ã€Œè² è·ã®é™ç•Œã€ã«æŒ‘むエンジニアã«ã€æŠ€è¡“ノウãƒã‚¦ã‚’èžã。 ミツãƒãƒãƒ¯ãƒ¼ã‚¯ã‚¹ãŒé‹å–¶ã™ã‚‹ã‚±ãƒ¼ã‚¿ã‚¤ãƒ–ãƒã‚°ã‚µãƒ¼ãƒ“ス「DECOLOGã€ã¯ã€ç•°è‰²ã®ã‚µãƒ¼ãƒ“スã§ã‚る。10代後åŠã‹ã‚‰20代å‰åŠã®å¥³æ€§ã«æœ€ã‚‚人気ã®ã‚るケータイブãƒã‚°ã‚µãƒ¼ãƒ“スã§ã€ã€Œãƒ‡ã‚³ãƒ¡ãƒ¼ãƒ«ã€ãªã©ã‚’利用ã—ã¦ã€ã‹ã‚ã„ãカラフルãªãƒ–ãƒã‚°ã‚’作æˆã§ãる。広告基準を厳ã—ãã™ã‚‹ã“ã¨ã§å¥³æ€§ãƒ¦ãƒ¼ã‚¶ãƒ¼ã«ã‚‚ä¸å®‰ãªã使ã£ã¦ã‚‚らãˆã‚‹ã‚ˆã†ãªå®‰å¿ƒæ„Ÿã‚’作り出ã—ã€å£ã‚³ãƒŸã ã‘ã§ã˜ã‚ã˜ã‚ã¨ã‚¢ã‚¯ã‚»ã‚¹æ•°ã‚’伸ã°ã—ã¦ããŸã€‚ çµæžœã€2010å¹´7月実績ã§æœˆé–“57å„„PV（ページビュー）超ã€æƒ³å®š800万UU（ユニークユーザー）ã€ä¼šå“¡ç™»éŒ²è€…æ•°180万件ã¨ã€ã‚±ãƒ¼ã‚¿ã‚¤ãƒ–ãƒã‚°ã‚µã‚¤ãƒˆã§ã¯å›½å†…最大ã®ã‚µãƒ¼ãƒ“スã¨ã—
A more stable MySQL with HAProxy
If you administer a MySQL server chances are you’ve seen it go astray. A some point in time for no apparent reason, maybe for a traffic spike, the number of running queries starts snowballing until MySQL eats 100% of your CPU grinding your whole server to a halt. In the context of this article let’s just call this pattern The Snowball Effect. The Snowball Effect can be caused by slow queries and l
Quoraを支ãˆã‚‹æŠ€è¡“ - nokunoã®æ—¥è¨˜
勉強ã«ãªã‚‹è¨˜äº‹ã‚’見ã¤ã‘ãŸã®ã§æ°—ã«ãªã£ãŸã¨ã“ã‚を翻訳ã—ã¦ã¿ã¾ã—ãŸã€‚Quora’s Technology Examined | Phil Whelan's Blog ã¯ã˜ã‚ã«Quoraã¯ãƒã‚¤ãƒ†ã‚¯èµ·æ¥å®¶ã®ä¸–界を体ç¾ã—ã¦ãŠã‚Šã€å•é¡Œã‚’見ã¤ã‘ã‚‹ã®ãŒé›£ã—ã„ã»ã©ãªã‚らã‹ãªã‚·ã‚¹ãƒ†ãƒ ã‚’æä¾›ã—ã¦ã„る。ã“ã®å·§å¦™ãªã‚·ã‚¹ãƒ†ãƒ ã¯å›žç”者ã¨è³ªå•è€…ã ã‘ã«æ”¯ãˆã‚‰ã‚Œã¦ã„ã‚‹ã‚ã‘ã§ã¯ãªãã€ã‚ˆã練られãŸãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã‚·ã‚¹ãƒ†ãƒ ã«ã‚ˆã£ã¦ã‚‚支ãˆã‚‰ã‚Œã¦ã„る。ãã‚Œã¯å…±åŒå‰µæ¥è€…ãŒFacebookã§ç£¨ãã‚’ã‹ã‘ãŸæŠ€è¡“ã§ã‚‚ã‚る。ã•ã»ã©é©šãã¹ãã“ã¨ã§ã‚‚ãªãã€è³¢ã„人々ã¯è‰¯ã考ãˆã‚‰ã‚ŒãŸãŸãã•ã‚“ã®è³¢ã„é“具を使ã†ã€‚NoSQL信者ãŸã¡ã¯ã“ã†è¨€ã£ã¦é ã‚’ã‹ã‹ãˆã‚‹ï¼šã€ŒãªãœQuoraã¯Cassandraã‚„MongoDBã‚„CouchDBã®ã‚ˆã†ãªNoSQLã§ã¯ãªãã€MySQLをデータストアã¨ã—ã¦ä½¿ã†ã®ã‹ï¼Ÿã€ã“ã®ã‚¨ãƒ³ãƒˆãƒªã§ã¯Quoraã«ã¤ã„ã¦ã®æŠ€è¡“çš„ãªæƒ…å ±ã‚’ã¾ã¨ã‚ã€è€ƒå¯Ÿã‚’è¡Œã†ã€‚å½¼
MessagePack: It's like JSON. but fast and small.
It's like JSON. but fast and small. MessagePack is an efficient binary serialization format. It lets you exchange data among multiple languages like JSON. But it's faster and smaller. Small integers are encoded into a single byte, and typical short strings require only one extra byte in addition to the strings themselves. Next: MessagePack is supported by over 50 programming languages and environm
大è¦æ¨¡ã‚¤ãƒ³ãƒ•ãƒ©ã®ç›£è¦–システムãã®2 | GREE Engineering
ã“ã‚“ã«ã¡ã¯ã€‚グリーã®mdoi(@m_doi)ã§ã™ã€‚ 今回ã¯ã€ã‚°ãƒªãƒ¼ã®ç›£è¦–システムã«ã¤ã„ã¦èª¬æ˜Žã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚以å‰ã€ã“ã¡ã‚‰ã®è¨˜äº‹ã«ã¦ã€ãƒªã‚½ãƒ¼ã‚¹ç›£è¦–システムã®èª¬æ˜Žã‚’ã•ã›ã¦é ‚ãã¾ã—ãŸãŒã€æ»æ´»ç›£è¦–ã‚„ãƒã‚°ç›£è¦–ã«ã¤ã„ã¦ã¯èªžã‚‰ã‚Œãªã‹ã£ãŸã®ã§ã€æ°—ã«ãªã£ã¦ã„ãŸæ–¹ã‚‚多ã„ã¨æ€ã„ã¾ã™ã€‚ã¨ã„ã†ã“ã¨ã§ã€ä»Šå›žã¯ã€ã‚°ãƒªãƒ¼ã®ã‚¤ãƒ³ãƒ•ãƒ©ã«ãŠã‘ã‚‹æ»æ´»ç›£è¦–ã‚„ãƒã‚°ç›£è¦–ã€ã‚¢ãƒ©ãƒ¼ãƒˆé€šçŸ¥ã‚·ã‚¹ãƒ†ãƒ を紹介ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ 何を使ã£ã¦ã„ã‚‹ã®ï¼Ÿ グリーã§ã¯ã€æ»æ´»ç›£è¦–ã«Nagiosを使用ã—ã¦ã„ã¾ã—ãŸã€‚監視システムã®ä¸ã§ã¯ã€ã‹ãªã‚Šæœ‰åãªã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã§ã™ã‹ã‚‰ã€ç›£è¦–システムã®æ§‹ç¯‰ã«ä½¿ç”¨ã—ãŸã“ã¨ãŒã‚る方も多ã„ã®ã§ã¯ãªã„ã§ã—ょã†ã‹ã€‚プラグインも豊富ã«å˜åœ¨ã™ã‚‹ã®ã§ã€æ§˜ã€…ãªç›£è¦–ã‚’è¡Œã†ã“ã¨ãŒã§ãã¾ã™ã€‚æ»æ´»ç›£è¦–ã¯ã€ã“ã®Nagiosã®æ©Ÿèƒ½ã‚’ãã®ã¾ã¾åˆ©ç”¨ã—ã€ãƒã‚°ç›£è¦–ã¯ã€Nagiosã¨ç‹¬è‡ªã«ä½œæˆã—ãŸã‚¨ãƒ¼ã‚¸ã‚§ãƒ³ãƒˆåŠã³ãƒã‚°ãƒ•ã‚£ãƒ«ã‚¿ã‚’連æºã•ã›ã¦è¡Œã£ã¦ã„ã¾ã—ãŸã€‚ 全体ã®ã‚·ã‚¹ãƒ†
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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‚’
実践 memcached
The document describes configuration and usage of the memcached caching server. It shows commands to start memcached, set listening addresses and ports, set memory limits, and check status and settings via the telnet protocol. It also shows integrating memcached monitoring into Nagios/Icinga using checks for TCP connections and specific status metrics.Read less
MogileFSã®åˆ©ç”¨ã¨é«˜é€ŸåŒ– » SlideShare
MogileFS+Perlbalãªé‹ç”¨å½¢æ…‹ã«ãŠã‘ã‚‹X-REPROXY-URLã®æ´»ç”¨ã¨ã€X-REPROX-CACHE-FORを使ã£ãŸã‚µãƒ¼ãƒãƒ¬ã‚¹ãƒãƒ³ã‚¹ã®é«˜é€ŸåŒ–ã€ã‚µãƒ¼ãƒã®è² è·è»½æ¸›ã«ã¤ã„ã¦Read less
SkyTools - PostgreSQL wiki
This is a package of tools in use in Skype for replication and failover. It includes a generic queuing mechanism, PgQ and utility library for Python scripts. The source code was hosted on Pgfoundry (archived) and later on GitHub, tech lead is Marko Kreen. A general overview presentation can be found here: File:Moskva DB Tools.v3.pdf, and a PGQ detailed presentation is at http://www.pgcon.org/2008/
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CouchDB Implementation
CouchDB is an Apache OpenSource project. It is Damien Katz's brain child and has a number of very attractive features based on very cool technologies. Such as ... RESTful API Schema-less document store (document in JSON format) Multi-Version-Concurrency-Control model User-defined query structured as map/reduce Incremental Index Update mechanism Multi-Master Replication model Written in Erlang (Erl
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