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Nosql databases for the .net developer
 

Nosql databases for the .net developer

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    Nosql databases for the .net developer Nosql databases for the .net developer Presentation Transcript

    • •••••• http://weblogs.asp.net/gsusx
    • The Database World is changing
    • Software applications arechanging
    • Data is growing exponentially
    • Unstructured data is becomingmainstream in the enterprise
    • Fast reads and scalable writesare the norm
    • Data mashups are common
    • Agility is not an option anymore
    • Emerging NOSQL Categories
    • Key value stores
    • Key Value Stores• Focus on scaling to huge amounts of data• Designed to handle massive load• Based on Amazon’s Dynamo paper• Data model: (global) collection of Key-Value pairs• Dynamo ring partitioning and replication• Examples: − Voldemort − Tokyo (Cabinet, Tyrant….)
    • Big Table Clones
    • Big Table• Like column oriented Relational Databases• Tables similarly to RDBMS, but handles semi- structured• Data model: ‣Columns → column families → ACL − Datums keyed by: row, column, time, index − Row-range → tablet → distribution• Examples: − HBase − Cassandra
    • Document Databases
    • Document Databases• Similar to Key-Value stores, but the DB knows what the Value is• Inspired by Lotus Notes• Data model: Collections of Key-Value collections• Documents are often versioned• Examples: − MongoDB − CouchDB − Redis
    • Graph Databases
    • Document Databases• Focus on modeling the structure of data – interconnectivity• Scales to the complexity of the data• Inspired by mathematical Graph Theory ( G=(E,V) )• Data model: “Property Graph” ‣Nodes − Relationships/Edges between Nodes (first class) − Key-Value pairs on both − Possibly Edge Labels and/or Node/Edge Types• Examples: − MongoDB − CouchDB − Redis
    • NOSQL & Cloud Computing
    • NOSQL Cloud Databases• Azure Table Service• Amazon SimpleDB (Dynamo)• Amazon Map Reduce (Hadoop)• Hosted options for NOSQL databases − MongoHQ (MongoDB) − Cloudant (CouchDB)
    • NOSQL is not only for internet vendors
    • NOSQL Databases for the .NETDeveloper
    • NOSQL in .NET• Key Value stores have been popular in the .NET world for a while − Memcache• Most popular document databases enable .NET interfaces − MongoDB − Redis − RavenDB• Other databases enable interoperable REST-based interfaces − CouchDB − Cassandra• Map Reduce engines have seen slow adoption in the .NET world − Dryad
    • •••••••••••••
    • Tellago & NOSQL
    • Tellago & NOSQL• Cloud implementations using Azure Table Services, Amazon SimpleDB, etc• Logging platform on CouchDB• Notification system over MongoDB• Real time analytics solution using MongoDB and Memcache
    • • http://nosql.mypopescu.com/• http://en.wikipedia.org/wiki/NoSQL• http://highscalability.com/•
    • ••••
    • Q&Ajesus.rodriguez@tellago.com info@tellago.comhttp://weblogs.asp.net/gsusx