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NoSQL or not NoSQL? 28. June 2010 NoSQL or not NoSQL? Nicolas RuflinNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 About Me • Nicolas Ruflin @ruflin • Head Developer useKit • Master Thesis: Adequate storage of social data • Elastica: ElasticSearch PHP clientNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 NoSQL: Not only SQL • Point being - when I rant about the suitability of NoSQL solutions, I’m mainly complaining that in many cases it seems to me that they’re using them because they’re popular or trendy and not because they are or are not actually suited to the task at hand. ~Monty Taylor • RDBMS was used in some many cases just because it was around for such a long time. ~Alex PopescuNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 Why NoSQL? http://gigaom.com/cloud/sensor-networks-top-social-networks-for-big-data-2/Nicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 Why NoSQL? • What is the problem with SQL? • Semi structured data • Horizontal scalability (read & write) • Thousands of nodes • ...Nicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 NoSQL Data Models http://blogs.neotechnology.com/emil/2009/11/nosql-scaling-to-size-and-scaling-to-complexity.htmlNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 NoSQL vs. SQL Data model Query language Structured SQL solutions SQL (normalized)NoSQL solutions Semi structured MapReduce, ...Nicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 NoSQL Challenges • Complexity • Setup • Queries (MapReduce) • Data models • MaturityNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 Where to use NoSQL • Social data • Data processing (Hadoop) • Search (Lucene) • Caching (Memcache, ...) • Data Warehousing • Logging • ...Nicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 NoSQL or SQL? • Wrong question • What is your problem? • Transactions • Amount of data • Data structureNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 NoSQL or not NoSQL? SQ L QL N oSNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 NoSQL Getting Started • Blogs • http://nosql.mypopescu.com/ • http://highscalability.com/ • Papers • Dynamo (Amazon) • BigTable (Google)Nicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 Questions - DiscussionNicolas Ruflin

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NoSQL or not NoSQL? 8. December 2010 CAP Theorem http://blog.nahurst.com/visual-guide-to-nosql-systemsNicolas Ruflin