『PostgreSQLãŒãƒ‰ã‚ュメントDBã«ï¼ŸMicrosoft DocumentDBã‚’å‹•ã‹ã—ã¦ã¿ã‚‹ã€ã¸ã®ã‚³ãƒ¡ãƒ³ãƒˆãƒ–ックマークã—ã¾ã—㟠ã“ã“ã«ãƒ„イート内容ãŒè¨˜è¼‰ã•ã‚Œã¾ã™ https://b.hatena.ne.jp/URLã¯spanã§å›²ã‚“ã§ãã ã•ã„ Twitterã§å…±æœ‰
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MongoDB 2.4 ã®æ€§èƒ½ 徹底評価 - ä¸å¹´engineerã®ç‹¬ã‚Šè¨€ - crumbjp
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MongoDB使ã„ã¾ã—ょã£ã¦æ™‚ã«ã€ã‚„ã‚Œã€ãƒ¬ãƒ—リカセットã ã®ã€ã‚·ãƒ£ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã ã®ã€ã„ã¡ã„ã¡æ‰‹é †ã¨ã‹æ•™ãˆã¦ã„ãã®ãŒã‚ã‚“ã©ãã•ããªã£ãŸã®ã§ã€ã“れを見ãŸã‚‰ã‚³ãƒžãƒ³ãƒ‰çš„ãªæ‰‹é †ã¯ã²ã¨é€šã‚Šã„ã‘ã¾ã™ã‚ˆã€‚ã ã‹ã‚‰å¾Œã¯è‡ªåˆ†ã§èª¿ã¹ã¦ãã€ã£ã¦ã„ã†è³‡æ–™ã‚’ã¤ãã£ã¦ã¿ãŸã®ã 。 ã¨ã„ã†ã‚ã‘ã§ã€ã€ŒMongoDBã®ã¯ã˜ã‚ã¦ã®é‹ç”¨ãƒ†ã‚ストã€SlideShareã«ã‚ã’ã¾ã—ãŸã€‚ MongoDBã®ã¯ã˜ã‚ã¦ã®é‹ç”¨ãƒ†ã‚スト from Akihiro Kuwano 内容 PDFã«ã¯ã€ä»¥ä¸‹ã®æ§˜ãªå†…容を盛り込んã§ã„ã¾ã™ã€‚ インストール レプリカセット構築 シャーディングè¨å®š 基本的ãªã‚ªãƒšãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ Stat系ツールã®è¦‹æ–¹ã€‚ ãŸã ã—ã€å¾ã€…ã«å¤ã„æƒ…å ±ã«ã¯ãªã£ã¦ãã‚‹ã¨æ€ã†ã®ã§ã€è©³ã—ã„æƒ…å ±ã‚„ã€æœ€æ–°ã®æƒ…å ±ã‚’è¦‹ãŸã„æ–¹ã«ã¯å…¬å¼ã®Wikiãªã‚Šã€ã‚½ãƒ¼ã‚¹ãªã‚Šè¦‹ã¦ã„ãŸã ãã®ã‚’推奨ã„ãŸã—ã¾ã™ï½— æ„図 以å‰MongoDBã®è–„ã„本ãªã©ã‚‚ã‚ã£ã¦ã€ã‚ã‚Œã¯ã™ã”ãã‚ã‹ã‚Šã‚„ã™ã„入門テ
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Blending MongoDB and RDBMS for ecommerce
MongoDB provides some ACID properties but not full ACID compliance. It supports atomicity for single document operations and consistency for unique indexes on shared fields. Isolation is limited as multi-document transactions are not fully supported. Durability is ensured as writes are replicated and acknowledged.Read less
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Linux File Systems MongoDB uses large files for storing data, and preallocates these. These filesystems seem to work well: ext4 ( kernel version >= 2.6.23 ) xfs ( kernel version >= 2.6.25 ) In addition to the file systems above you might also want to (explicitly) disable file/directory modification times by using these mount options: noatime (also enables nodiratime) We have found ext3 to be very
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Karl Seguinã•ã‚“ã®ã€ŒThe Little MongoDB Bookã€ã‚’和訳ã—ã¾ã—ãŸã€‚ ã“ã®æœ¬ã¯MongoDBã®åŸºç¤Žã‚’実際ã«æ‰‹ã‚’å‹•ã‹ã—ã¦å¦ã¶ãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ã§ã™ã€‚ MongoDBã®åŸºç¤Žã‹ã‚‰ã€ãƒ‡ãƒ¼ã‚¿ãƒ¢ãƒ‡ãƒ«ã®è¨è¨ˆæ–¹æ³•ã€MapReduceãªã©å¹…広ã„内容をカãƒãƒ¼ã—ã¦ã„ã¾ã™ã€‚ ã¾ãŸã€ç‰¹åˆ¥MongoDBã«èˆˆå‘³ãŒç„¡ãã¦ã‚‚ç†è€…ã®NoSQLã¸ã®è€ƒãˆæ–¹ã¯ä¸€èªã®ä¾¡å€¤ãŒã‚ã‚‹ã ã‚ã†ã€‚ ダウンãƒãƒ¼ãƒ‰PDF版 the-little-mongodb-book-ja.pdf epub版 the-little-mongodb-book-ja.epub(ã‚ã‚“ã¾ã‚Šãã‚Œã„ã«çµ„版ã§ãã¦ãªã„ã‘ã©â€¦) 誤訳ãªã©ã‚れ㰠@hamano ã¾ã§ ソースã¯ã“ã¡ã‚‰: https://github.com/hamano/the-little-mongodb-book æ›´æ–°å±¥æ´2012/04/17 v1.0 åˆç‰ˆå…¬é–‹ã€‚ 2012/06/15 v
MongoDB Oplog入門
This document demonstrates how the oplog in MongoDB replica sets works by replicating operations from the primary to secondaries. It shows insert, update, remove operations on a collection on the primary and then verifies that the same operations have been replicated to the oplog and applied on a secondary by finding the same document changes. It also shows getMore commands from secondaries tailin
MongoDB on AWS
MongoDB on AWS Guidelines and Best Practices Rahul Bhartia May 2015 Amazon Web Services – MongoDB on AWS May 2015 Page 2 of 30 © 2015, Amazon Web Services, Inc. or its affiliates. All rights reserved. Notices This document is provided for informational purposes only. It represents AWS’s current product offerings and practices as of the date of issue of this document, which are subject to change wi
第3回 MongoDB勉強会 ダイジェスト
「第3回 MongoDB 勉強会 in Tokyo〠: ATND 先週土曜日（2011å¹´5月14日）ã«ãƒ•ãƒ¥ãƒ¼ãƒãƒ£ãƒ¼ã‚¢ãƒ¼ã‚テクトã•ã‚“ã®ã‚»ãƒŸãƒŠãƒ¼ãƒ«ãƒ¼ãƒ ã«ã¦è¡Œã‚ã‚ŒãŸMongoDBã®å‹‰å¼·ä¼šã«è¡Œã£ã¦ãã¾ã—ãŸã€‚ MongoDBã®ä»•æ§˜ãƒ»æ©Ÿèƒ½ãªã©ã®ä½“系的ãªè©±ã‹ã‚‰ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã®è©±ã€é–‹ç™ºã«åˆ©ç”¨ã™ã‚‹è©±ã€ãƒ—ãƒãƒ€ã‚¯ã‚·ãƒ§ãƒ³ã¨ã—ã¦é‹ç”¨ã—ã¦ã„る話ã¨ã€ãƒãƒ©ãƒ³ã‚¹ã‚ˆãã¾ã¨ã¾ã£ã¦ã„ã¦ã¨ã¦ã‚‚勉強ã«ãªã‚Šã¾ã—ãŸã€‚ RDBã¨ã®é•ã„や特有ã®æŒ™å‹•ã‚’ãã¡ã‚“ã¨æŠŠæ¡ã—ã¦åˆ©ç”¨ã™ã‚Œã°ã€å分プãƒãƒ€ã‚¯ã‚·ãƒ§ãƒ³ã§åˆ©ç”¨å‡ºæ¥ã‚‹ã¨ã„ã†ãƒ“ジョンãŒè¦‹ãˆã¾ã—ãŸã€‚ 詳細ã¯å„発表者ã®æ–¹ã®ã‚¹ãƒ©ã‚¤ãƒ‰ã‚’見るã¨ã‚ã‹ã‚‹ã¨æ€ã„ã¾ã™ãŒã€å½“æ—¥ä¼šå ´ã§ãƒ¡ãƒ¢ã—ãŸã‚‚ã®ã§ãƒ€ã‚¤ã‚¸ã‚§ã‚¹ãƒˆçš„ã«ã¾ã¨ã‚ã¾ã—ãŸã€‚ MongoDB勉強会ã¯æ¯Žæœˆé–‹å‚¬ï¼ˆäºˆå®šï¼‰ã—ã¦ã„ã‚‹ãã†ãªã®ã§ã€èˆˆå‘³ã‚’æŒãŸã‚ŒãŸæ–¹ã¯æ˜¯éžå‚åŠ ã—ã¦è¦‹ã¦ãã ã•ã„。 MongoDBコミュニティー：MongoDB JP | Google グループ ã€ç™ºè¡¨1】Mo
nginx-gridfsを使ã£ã¦carrierwaveã§ä½œã£ãŸã‚µãƒ ãƒã‚¤ãƒ«ã‚’表示ã™ã‚‹ - joker1007’s diary
Railsã‚„Sinatraã§ç”»åƒã‚’アップãƒãƒ¼ãƒ‰ã—ãŸã‚Šã€DBã‚„AmazonS3ã«ä¿å˜ã—ãŸã‚Šã™ã‚‹ãŸã‚ã®ãƒ©ã‚¤ãƒ–ラリã¨ã—ã¦ã€carrierwaveãŒã‚ã‚Šã¾ã™ã€‚ ã‚ã¾ã‚Šä¸€èˆ¬çš„ã§ã¯ç„¡ã„ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€carrierwave-mongoidã¨ã„ã†æ‹¡å¼µãƒ©ã‚¤ãƒ–ラリを利用ã™ã‚‹ã“ã¨ã§ã€ MongoDBã®GridFSã«ç”»åƒã‚’æ ¼ç´ã™ã‚‹ã“ã¨ãŒå‡ºæ¥ã¾ã™ã€‚ ãã®å ´åˆã€ç”»åƒã‚’表示ã™ã‚‹æ™‚ã«ä¸€ç•ªã¦ã£ã¨ã‚Šæ—©ã„ã®ã¯ã€ Rails上ã§GridFSã«æŽ¥ç¶šã—ã¦ãƒã‚¤ãƒŠãƒªã‚’èªã¿å‡ºã—ã€send_dataã§ãã®ã¾ã¾ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã«è¿”ã™æ–¹æ³•ã§ã™ã€‚ ã—ã‹ã—ã€ã“ã®æ–¹æ³•ã¯Railsã®å‡¦ç†ã‚’丸々通るã®ã§ã€ç”»åƒã®ã‚ˆã†ã«ç´°ã‹ãアクセスãŒå¤šã„ã‚‚ã®ã«ã¯ä¸å‘ãã§ã™ã€‚ ãã“ã§ã€æ¬¡ã®æ‰‹æ®µãŒRackミドルウェアを使ã†æ–¹æ³•ã§ã™ã€‚ 以下ã®ã‚ˆã†ãªãƒŸãƒ‰ãƒ«ã‚¦ã‚§ã‚¢ã‚’作æˆã—ã€Rackã®ã‚¹ã‚¿ãƒƒã‚¯ã«ç©ã‚“ã§ãŠãã¾ã™ã€‚ # config/initializer/carrierwave.rb
事例：ã¨ã‚る写真共有アプリã§ã®MongoDB
This document summarizes key points from chapters 11 and 15 of Programming Hive. It discusses choosing compression codecs for intermediate and final outputs in Hive, how different compression schemes like LZO, Snappy, and BWT work, and enabling compression in Hive. It also covers Hive file formats like SequenceFiles, RCFiles, and ORCFiles. RCFiles store data columnarly and use RLE compression. ORC
Mongo DBã‚’åŠå¹´é‹ç”¨ã—ã¦ã¿ãŸ
MongoDB is a document-oriented database that stores data in flexible, JSON-like documents. It supports features like replication, auto-sharding, and indexing. The document discusses using MongoDB with Ameba Pico's photo tagging service, including initial implementation with one shard, expanding to multiple shards as user numbers grow over time, and repairing and upgrading shards over time to suppo
Sharding を使ã„ã“ãªã™ãŸã‚ã®5ã¤ã®Tips - doryokujin's blog
@doryokujinã§ã™ã€‚今日も相変ã‚らãšMongoDBã®ã€ãã—ã¦Shardingã«é–¢ã™ã‚‹è¨˜äº‹ã‚’書ã“ã†ã¨æ€ã„ã¾ã™ã€‚ …ã¨ã€ãã®å‰ã«ãŠçŸ¥ã‚‰ã›ã§ã™ï¼6月ã¯2ã¤ã®MongoDB勉強会を予定ã—ã¦ãŠã‚Šã¾ã™ã€æ˜¯éžã”å‚åŠ ä¸‹ã•ã„ï¼ ãƒ»2011å¹´6月11日（土） 「第4回 MongoDB 勉強会 in Tokyoã€@フューãƒãƒ£ãƒ¼ã‚¢ãƒ¼ã‚テクト ・2011å¹´6月28日（ç«ï¼‰ã€Œç¬¬1回 MongoDB ソースコードリーディングã€@PFI ã•ã¦ã€ãã‚Œã§ã¯æœ¬é¡Œã«å…¥ã‚ŠãŸã„ã¨æ€ã„ã¾ã™ã€‚ MongoDBã®Shardingã¨ã„ãˆã°ã€ ・åˆæœŸè¨å®šã‚„Shardã®è¿½åŠ ・削除ã¨ã„ã£ãŸå°Žå…¥ã®å®¹æ˜“㕠・Shardã®é¢å€’ã‚’Mongoå´ãŒãšã£ã¨è¦‹ã¦ãれるã¨ã„ã†ç®¡ç†ã®å®¹æ˜“ã• ã‚’å‚™ãˆã¦ã„ã‚‹ã¨è¨€ã†ã“ã¨ã§èˆˆå‘³ã‚’æŒã£ã¦ãŠã‚‰ã‚Œã‚‹æ–¹ã‚‚多数ã„ã‚‹ã¨æ€ã„ã¾ã™ã€‚ ã—ã‹ã—ãã®ä¸€æ–¹ã§å®Ÿéš›ã«Sharding環境を導入ã—ã¦ã„る方々ã®ä¸ã®å¤šãã¯ã€éé‡ã™ã‚‹æ§˜ã€…ãªä¸éƒ½åˆã‚„ä¸æ•´
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GitHub - stripe-archive/mosql: MongoDB → PostgreSQL streaming replication
GitHub - mdirolf/nginx-gridfs: Nginx module for serving files from MongoDB's GridFS
ソーシャルゲームã«ãŠã‘ã‚‹MongoDBé©ç”¨äº‹ä¾‹ - Animal Land
Good night, Posterous
http://www.machu.jp/posts/20111007/p01/
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