[B! MongoDB] Ehrenã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

Ehren id:Ehren

MongoDBã«é–¢ã™ã‚‹Ehrenã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (61)

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10gen: MongoDBã®ãƒ•ã‚©ãƒ¼ãƒ«ãƒˆãƒˆãƒ¬ãƒ©ãƒ³ãƒˆã®æ£å½“æ€§ã‚’ä¸»å¼µ
ã‚³ãƒ¼ãƒãƒ«å¤§å¦ã®æ•™æŽˆãŒï¼ŒMongo DBã®ãƒ•ã‚©ãƒ¼ãƒ«ãƒˆãƒˆãƒ¬ãƒ©ãƒ³ã‚¹ã‚·ã‚¹ãƒ†ãƒ ã« "è¨è¨ˆä¸Šã®æ¬ é™¥ãŒã‚ã‚‹" ã¨ä¸»å¼µã—ã¦ã„ã‚‹ã€‚10genã§ã¯ï¼ŒåŒç¤¾ã®ãƒ†ã‚¯ãƒ‹ã‚«ãƒ«ãƒ‡ã‚£ãƒ¬ã‚¯ã‚¿ãŒã“ã‚Œã«å¯¾ã—ã¦åè«–ã™ã‚‹ã€‚ ã‚³ãƒ¼ãƒãƒ«å¤§å¦ å‡†æ•™æŽˆã® Emin GÃ¼n Sireræ°ã¯ï¼ŒACIDãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ã‚’ã‚µãƒãƒ¼ãƒˆã™ã‚‹ã‚ãƒ¼ãƒ»ãƒãƒªãƒ¥ãƒ¼ãƒ»ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã§ã‚ã‚‹ HyperDex ã®é–‹ç™ºè€…ã ã€‚ãã®æ°ãŒå…ˆæ—¥ï¼ŒBroken by Design: Mongo DB Fault Tolerance ã¨é¡Œã—ãŸãƒ–ãƒã‚°è¨˜äº‹ã§ï¼ŒMongo DBã®ãƒ•ã‚©ãƒ¼ãƒ«ãƒˆãƒˆãƒ¬ãƒ©ãƒ³ãƒˆã‚·ã‚¹ãƒ†ãƒ ã«ã¤ã„ã¦æ‰¹åˆ¤ã—ãŸã€‚Sireræ°ãŒå¤§ããªå•é¡Œã¨ã—ã¦å–ã‚Šä¸Šã’ã¦ã„ã‚‹ã®ã¯ï¼ŒMongo DBãŒãƒ•ã‚©ãƒ¼ãƒ«ãƒˆãƒˆãƒ¬ãƒ©ãƒ³ã‚¹ã®ãŸã‚ã«ï¼Œè¤‡æ•°ã®ãƒŽãƒ¼ãƒ‰ã«å¯¾ã—ã¦ãƒ‡ãƒ¼ã‚¿ã®ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’æ›¸ãè¾¼ã‚€æ–¹æ³•ã«é–¢ã™ã‚‹ã‚‚ã®ã ã€‚æ°ã¯ "Mongo DBã«ãŠã„ã¦ï¼Œæ›¸ãè¾¼ã¿ï¼ˆã‚ã‚‹ã„ã¯æŒ¿å…¥)ãŒå®Œäº†ã—ãŸã¨ã„ã†ã®ã¯ã©ã®æ™‚ç‚¹ã‚’æ„å‘³ã™ã‚‹ã®ã§ã—ã‚‡ã†ã‹ï¼Ÿ
Ehren 2013/02/18
MongoDB
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MongoDB Blog
Mongo DB BlogAnnouncements, updates, news, and more Mongo DB Atlas Integration with Ably Unlocks Real-time Capabilities Enterprises across sectors increasingly realize that data, like time, doesnâ€™t wait. Indeed, harnessing and synchronizing information in real time is the new currency of business agility. Enter the alliance between Mongo DB and Ablyâ€”a partnership that has led to Ably's new database c
Ehren 2012/07/27
MongoDB
ãƒªãƒ³ã‚¯
[fluentd] #Fluentd Casual Talks ã§ã€Œfluentdã§Webã‚µã‚¤ãƒˆé‹ç”¨ã‚’æ¥½ã«ã™ã‚‹ã€è©±ã‚’ã—ã¦ãã¾ã—ãŸ - é…’æ—¥è¨˜ ã¯ã¦ãªæ”¯åº—
id:tagomoris ã•ã‚“ã«ãŠå£°ãŒã‘ã„ãŸã ãã¾ã—ã¦ã€Fluentd Casual Talks ã«ã¦ã€Œfluentdã§Webã‚µã‚¤ãƒˆé‹ç”¨ã‚’æ¥½ã«ã™ã‚‹ã€ã¨ã„ã†ã‚¿ã‚¤ãƒˆãƒ«ã§ç™ºè¡¨ã•ã›ã¦ã„ãŸã ãã¾ã—ãŸã€‚ ç™ºè¡¨è³‡æ–™ã¯ã“ã¡ã‚‰ ä¸»å‚¬è€…ã® id:tagomoris ã•ã‚“ã€ä¼šå ´ã‚’æä¾›ã—ã¦ã„ãŸã ã„ãŸ DeNA æ§˜ã€ã„ã‚ã„ã‚æº–å‚™ã‚’ã—ã¦ãã ã•ã£ãŸ id:riywo ã•ã‚“ã¯ã˜ã‚å¤šãã®æ–¹ã€…ã€å‚åŠ ã—ã¦ãã ã•ã£ãŸ100åä»¥ä¸Šã®çš†æ§˜ã€ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—ãŸï¼æ¥½ã—ã‹ã£ãŸã§ã™ã€‚ ç™ºè¡¨ã§ã¯ã“ã“åŠå¹´ã»ã© Fluentd ã‚’é‹ç”¨ã—ã¦æ¥ãŸçµŒé¨“ã‚’ãŠè©±ã—ã—ã¾ã—ãŸãŒã€ç™ºè¡¨å†…ã§è§¦ã‚Œãªã‹ã£ãŸã“ã¨ã§å¤§äº‹(?)ãªã“ã¨ãŒã‚ã‚Šã¾ã™ã®ã§ä»¥ä¸‹ã«è£œéºã‚’ã„ãã¤ã‹æ›¸ã„ã¦ãŠãã¾ã™ã€‚ Mongo DB ã«ãƒã‚°ã‚’æºœã‚ã™ãŽãªã„æ–¹ãŒã„ã„ã‹ã‚‚ å¤ªç”°ã•ã‚“ (@kzk_mover) ã®ç™ºè¡¨å†…ã§ã‚‚è§¦ã‚Œã‚‰ã‚Œã¦ã„ã¾ã—ãŸãŒã€æ•°åƒä¸‡ä»¶ç¨‹åº¦ã«ã—ã¦ãŠã„ãŸã»ã†ãŒã„ã„ã®ã§ã¯â€¦â€¦ã¨ã„ã†å®Ÿæ„Ÿã§ã™ã€‚ ç™ºè¡¨å†…
Ehren 2012/05/21
fluentd

MongoDB
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Full text search with MongoDB and Lucene analyzers - blog.
Post published:November 14, 2010 Post Author:Johan Rask Post Category:Java / Tips & Tricks Post Comments:8 Comments This post describes how you with a few lines of code can take full advantage of Lucenes powerful analysis functionality for text normalization (crucial for free text searching) for both storing and querying, but using standard Mongo DB features for data storage, indexing and retrieval
Ehren 2012/04/20
å…¨æ–‡æ¤œç´¢

MongoDB

Lucene

Solr
ãƒªãƒ³ã‚¯
Performing regex queries with PyMongo
Ehren 2012/04/17
python

MongoDB

regExp
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MongoDb Architecture
NOSQL has become a very heated topic for large web-scale deployment where scalability and semi-structured data driven the DB requirement towards NOSQL. There has been many NOSQL products evolving in over last couple years. In my past blogs, I have been covering the underlying distributed system theory of NOSQL, as well as some specific products such as CouchDB and Cassandra/HBase. Last Friday I wa
Ehren 2012/04/06
MongoDB
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Challenges with MongoDB
The document discusses several challenges with Mongo DB, including: 1. Mongo DB uses a global write lock, which can negatively impact write performance. 2. Auto-sharding in Mongo DB is not always reliable, as the balancer can get into deadlocks and Mongo DB has trouble determining the number of documents after sharding. 3. Being schema-less is overrated, as it means repeating the schema in each docume
Ehren 2012/04/06
MongoDB
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Sharded Cluster Components - MongoDB Manual v7.0
General InformationDocumentationDeveloper Articles & TopicsCommunity ForumsBlogUniversity
Ehren 2012/02/27
MongoDB

Sharding
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.: mongodbã€€ãŸã¶ã‚“ã“ã†å‹•ã„ã¦ã‚‹æƒ³åƒä¸Šã®ç”»åƒ è¦æ¨¡ã«åˆã‚ã›ã¦æ‹¡å¼µã—ãŸã„
2011å¹´4æœˆ2æ—¥åœŸæ›œæ—¥ mongo dbã€€ãŸã¶ã‚“ã“ã†å‹•ã„ã¦ã‚‹æƒ³åƒä¸Šã®ç”»åƒ è¦æ¨¡ã«åˆã‚ã›ã¦æ‹¡å¼µã—ãŸã„ Mongo DB 2å°æ§‹æˆ 2å†—é•·(replicaset),1ãƒãƒ©ãƒ³ã‚·ãƒ³ã‚°(sharing) ä¸‹ã®ã‚µãƒ¼ãƒãƒ¼ã«ã‚‚configã‚µãƒ¼ãƒãƒ¼ã„ã‚‹(å¿˜ã‚Œã¦ãŸã ã‘ Mongo DB 4å°æ§‹æˆ 2å†—é•·(replicaset),2ãƒãƒ©ãƒ³ã‚·ãƒ³ã‚°(sharing) configã‚µãƒ¼ãƒãƒ¼ã‚’ä¸‹ã®ã‚µãƒ¼ãƒãƒ¼ã«ã‚‚ã†ä¸€å€‹ã„ã‚Œã‚‹ ã‚‚ã—ã‹ã—ãŸã‚‰configã‚µãƒ¼ãƒãƒ¼åˆ†å‰²ã«ãªã‚‹ã‹ã‚‚ Mongo DB 9å°æ§‹æˆ 3å†—é•·(replicaset),3ãƒãƒ©ãƒ³ã‚·ãƒ³ã‚°(sharing) ãŸã¶ã‚“configã®ã‚µãƒ¼ãƒãƒ¼ã¯åˆ¥ã«å‡ºã•ãªã„ã¨ãƒ¡ãƒ¢ãƒªã¨ã‹ã„ã‚ã„ã‚å¤§å¤‰ãªã®ã‹ãªã¨æ€ã†ã®ã§12å°ã«ãªã‚‹ã®ã‹ ã‚ã¨æ€¥ã«ï¼™å°ã«ãªã£ãŸæ„å‘³ã¯ãªãã€ã—ãŸã®3å°æŠœã„ã¦6ã§ã‚‚ã„ã„ ã¿ã‚“ãªã®ãŠå‹§ã‚ æ™‚åˆ»: 23:46 ãƒ¡ãƒ¼ãƒ«ã§é€ä¿¡ BlogThis! Twitter ã§
Ehren 2012/02/25
MongoDB
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x.com
Ehren 2012/02/21
MongoDB
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Charming Python: Functional programming in Python, Part 3
Ehren 2012/02/21
MongoDB
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20110514 mongo dbãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°
The document provides tips and explanations for various Mongo DB commands and operations including explain, hint, setProfilingLevel, currentOp, and mongostat. It discusses using indexes to optimize queries, setting profiling levels to log slow queries, using currentOp to view currently running operations, and using mongostat to view Mongo DB server statistics.Read less
Ehren 2012/02/21
MongoDB
ãƒªãƒ³ã‚¯
Arya a MongoDB based Search Engine - Scott Reynolds
TL;DR Python powered Mongo DB based search engine https://github.com/SupermanScott/Arya MotivationI wanted to explore Mongo DB Map Reduce framework and to build something non-trivial So this is a system that provides an Indexer and a Searcher to do the tasks and store the data in Mongo DB. It is realtime search as the index is just a collection in Mongo DB.SolutionThe solution uses Python and pymongo
Ehren 2012/02/14
MongoDB

readItLater
ãƒªãƒ³ã‚¯
MongoDB in Review
Ehren 2012/02/10
mongoDB
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ã‚¤ãƒžãƒ‰ã‚ã®IDEäº‹æƒ…(123) Webã‚¢ãƒ—ãƒªã‹ã‚‰Eclipseãƒ—ãƒ©ã‚°ã‚¤ãƒ³ã¾ã§ã€æ§˜ã€…ãªMongoDBãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰
Mongo DBã¨ã¯? è¿‘å¹´ä¸»ã«Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã¨ã—ã¦RDBMSã®ä»£ã‚ã‚Šã«NoSQLã¨å‘¼ã°ã‚Œã‚‹ãƒŸãƒ‰ãƒ«ã‚¦ã‚§ã‚¢ãŒæ³¨ç›®ã‚’é›†ã‚ã¦ã„ã‚‹ã€‚NoSQLã¯ã€RDBMSä»¥å¤–ã®ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã®ç·ç§°ã§ã‚ã‚Šæ§˜ã€…ãªè£½å“ãŒå˜åœ¨ã™ã‚‹ãŒã€ã„ãšã‚Œã‚‚RDBMSã‚ˆã‚Šã‚‚æ©Ÿèƒ½ãŒã‚·ãƒ³ãƒ—ãƒ«ãªåˆ†é«˜é€Ÿã«å‹•ä½œã—ã€ã‚¹ã‚±ãƒ¼ãƒ©ãƒ“ãƒªãƒ†ã‚£ã«å„ªã‚Œã‚‹ã¨ã„ã†ç‰¹å¾´ã‚’æŒã£ã¦ã„ã‚‹ã‚‚ã®ãŒå¤šã„ã€‚ Mongo DBã¯æ•°ã‚ã‚‹NoSQLè£½å“ã®ä¸ã§ã‚‚ç‰¹ã«äººæ°—ã®é«˜ã„ã‚‚ã®ã®ã²ã¨ã¤ã§ã€ã‚¹ã‚ãƒ¼ãƒžãƒ¬ã‚¹ãªãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆæŒ‡å‘ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã ã€‚ä»Šå›žã¯ã€ã“ã®Mongo DBã®ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã¨ã—ã¦åˆ©ç”¨å¯èƒ½ãªãƒ„ãƒ¼ãƒ«ã‚’ç´¹ä»‹ã—ãŸã„ã€‚ mViewer mViewerã¯ã€Javaã§å®Ÿè£…ã•ã‚ŒãŸWebãƒ™ãƒ¼ã‚¹ã®Mongo DB ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã ã€‚è»½é‡ã‚µãƒ¼ãƒ–ãƒ¬ãƒƒãƒˆã‚³ãƒ³ãƒ†ãƒŠã§ã‚ã‚‹winstoneãŒåŒæ¢±ã•ã‚Œã¦ãŠã‚Šå˜ä½“ã§å®Ÿè¡Œã§ãã‚‹ã‚ˆã†ã«ãªã£ã¦ã„ã‚‹ãŸã‚ã€JavaãŒå‹•ä½œã™ã‚‹ç’°å¢ƒãŒã‚ã‚Œã°ã™ãã«åˆ©ç”¨ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚
Ehren 2012/02/02
MongoDB
ãƒªãƒ³ã‚¯
Announcing MongoLab's Remote Connections - a MongoDB GUI admin tool for any cloud MongoDB | MongoLab - MongoDB Hosting
New Feature: MongoLab can now manage remote databases Mongo DB sports a powerful command line shell to create and manipulate databases, collections and documents.Â As powerful and complete as it is, sometimes a Graphical User Interface (GUI) is more appropriate and preferred. We here at MongoLab have always been at work on Web GUI tools for our hosted Mongo DB instances.Â On more than a few occasion
Ehren 2012/01/11
MongoDB

GUI
ãƒªãƒ³ã‚¯
åŒ¿åã«ã‚ˆã‚‹å‘Šç™ºã€ŒMongoDBã¯ä½¿ã£ã¦ã¯ã„ã‘ãªã„ã€ | gihyo.jp
ã€ŒPASTEBINã€ã¨ã„ã†ã‚³ãƒ³ã‚½ãƒ¼ãƒ«ã®å‡ºåŠ›ã‚„ã‚¨ãƒ©ãƒ¼ãƒã‚°ã€ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãªã©ã‚’å¼µã‚Šä»˜ã‘ã¦å…±æœ‰ã™ã‚‹Webã‚µã‚¤ãƒˆãŒã‚ã‚Šã€ãã“ã«æŠ•ç¨¿ã•ã‚ŒãŸå†…å®¹ãŒè°è«–ã‚’å·»ãèµ·ã“ã—ã¾ã—ãŸã€‚ã€Œâ Don't use Mongo DBã€ã¨ã„ã†ã‚¿ã‚¤ãƒˆãƒ«ãŒä»˜ã‘ã‚‰ã‚ŒãŸæ–‡ç« ã«ã¯ã€ãƒ˜ãƒ“ãƒ¼ã«Mongo DBã‚’åˆ©ç”¨ã—ã¦ã„ã‚‹ãƒ¦ãƒ¼ã‚¶ã‹ã‚‰ã®è¾›è¾£ï¼ˆã—ã‚“ã‚‰ã¤ï¼‰ãªæ‰¹åˆ¤ãŒç¶´ï¼ˆã¤ã¥ï¼‰ã‚‰ã‚Œã¦ã„ã¾ã—ãŸã€‚ å‘Šç™ºè€…ã¯ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã«ã¦æ•°åƒä¸‡ä»¶ã‚‚ã®ãƒ¦ãƒ¼ã‚¶ç®¡ç†ã«Mongo DBã‚’åˆ©ç”¨ã—ã¦ãŠã‚Šã€ã“ã‚Œã¾ã§é•·ã„é–“10genç¤¾ï¼ˆMongo DBã®é–‹ç™ºå…ƒï¼‰ã‹ã‚‰æœ€é«˜ãƒ¬ãƒ™ãƒ«ã®ï¼‰æœ‰å„Ÿã‚µãƒãƒ¼ãƒˆã‚’å—ã‘ã¦ã„ãŸãŸã‚é»™ã£ã¦ã„ãŸãŒã€å°‘ã—ã§ã‚‚å¤šãã®äººã«è¦é˜ã‚’é³´ã‚‰ã™ã¹ãç«‹ã¡ä¸ŠãŒã£ãŸãã†ã§ã™ã€‚Mongo DBã®æ‰±ã„ã‚„ã™ã•ã‚„ã‚¹ã‚ãƒ¼ãƒžãƒ•ãƒªãƒ¼ãªãƒ¢ãƒ‡ãƒ«ã€è±Šå¯Œãªå®Ÿç¸¾ãªã©ã«ä¸€å®šã®è©•ä¾¡ã‚’ã—ã¤ã¤ã‚‚ã€å¤§è¦æ¨¡ãªç’°å¢ƒã§å®Ÿéš›ã«å‹•ã‹ã•ãšã«åˆ¤æ–ã™ã‚‹ã®ã¯æ™‚ã«é‡å¤§ãªå•é¡Œã¨ãªã‚Šã€Mongo DBã«ã¯ãã‚ŒãŒå‘ã„ã¦ã„ãªã„ã¨è¨€ã„åˆ‡ã£ã¦ã„ã¾ã™ã€‚ å…·ä½“çš„ã«
Ehren 2011/12/27
MongoDB
ãƒªãƒ³ã‚¯
è‘¡äº°8814çº¿è·¯(ä¸å›½)è‚¡ä»½æœ‰é™å…¬å¸
Ehren 2011/12/01
playframework

scala

MongoDB

casbah
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MongoDBã®ä¿¡é ¼æ€§ã«ç–‘å•
åŽŸæ–‡(æŠ•ç¨¿æ—¥ï¼š2011/11/07)ã¸ã®ãƒªãƒ³ã‚¯ æœ€è¿‘ã€Mongo DB ã«é–¢ã—ã¦éžå¸¸ã«å¥½ã¾ã—ããªã„å†…å®¹ã®ã‹ãªã‚Šè©±é¡Œã«ãªã£ãŸå¸‚å ´å ±å‘ŠãŒï¼’ã¤ã‚ã£ãŸã€‚æ‰¹åˆ¤ã®å¤§éƒ¨åˆ†ã¯ã€ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹å•é¡Œã¨ãƒ‡ãƒ¼ã‚¿æå¤±ã®çµ„åˆã›ã«é›†ä¸ã—ã¦ã„ã‚‹ã€‚ã“ã®è©±ã‚’ç¶šã‘ã‚‹å‰ã«ã€ã“ã‚Œã‚‰ã¯å…¬å¼ã®äº‹ä¾‹ç ”ç©¶ã§ãªã„ã“ã¨ã‚’è‚ã«å‘½ã˜ã¦æ¬²ã—ã„ã€‚ãã†ã§ã¯ãªãã¦ã€æœ€è¿‘ Mongo DBã‚’ä½¿ã£ãŸé–‹ç™ºãƒãƒ¼ãƒ ã«ã‚ˆã‚‹å¸‚å ´å ±å‘Šã§ã‚ã‚‹ã€‚ ã¾ãš Urban Airshipã® Michael Schurteræ°ã®ãƒ¬ãƒãƒ¼ãƒˆã‹ã‚‰å§‹ã‚ã‚‹ã€‚ Urban Airshipã¯æ—¢ã«ã€Mongo DBã®å•é¡Œã‚’çµŒé¨“ã—ã¦ãŠã‚Šã€ã“ã®ãƒ¬ãƒãƒ¼ãƒˆã‚’æ›¸ãå‰ã«ãƒ‡ãƒ¼ã‚¿ã®ã»ã¨ã‚“ã©ã‚’ PostgreSQLã«ç§»è¡Œã‚’æ¸ˆã¾ã›ã¦ã„ãŸã€‚æ®‹ã£ãŸãƒ‡ãƒ¼ã‚¿ã¯Mongo DBã«ã¨ã£ã¦ç†æƒ³çš„ã®ã‚ˆã†ã ã€‚ çŸå‘½ï¼ã‚‚ã—ãã‚Œã‚’å¤±ã£ã¦ã‚‚ã€çŸã„é–“ã‚µãƒ¼ãƒ“ã‚¹ä½Žä¸‹ã‚’çµŒé¨“ã™ã‚‹ãŒã€ å£Šæ»…çš„ã§ã¯ãªã„ å°ã•ã„ï¼å®¹æ˜“ã«ãƒ¡ãƒ¢ãƒªãƒ¼ã«åŽã¾ã‚‹(~15 GB) äºŒæ¬¡ç´¢å¼•ï¼ã‚
Ehren 2011/11/14
mongodb
ãƒªãƒ³ã‚¯
Hey MongoDB Haters: The Problem Isnâ€™t Mongo, Itâ€™s You
I spent the weekend reading over all the conversations on Hacker News (effectively summarized in this post) about how Mongo DB had failed this one company, and all the follow-on conversation about why or why not to use Mongo as a database solution. Fortunately there are often some very rational people in the comments on Hacker News, but I feel like there is one key takeaway: developers and engineer
Ehren 2011/11/08
MongoDB
ãƒªãƒ³ã‚¯
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