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1、HBase:TheDefinitiveGuideHBase:TheDefinitiveGuideLarsGeorgeBeijing•Cambridge•Farnham•Köln•Sebastopol•TokyoHBase:TheDefinitiveGuidebyLarsGeorgeCopyright©2011LarsGeorge.Allrightsreserved.PrintedintheUnitedStatesofAmerica.PublishedbyO’ReillyMedia,Inc.,1005GravensteinHighwayNorth,Sebastopol,CA95
2、472.O’Reillybooksmaybepurchasedforeducational,business,orsalespromotionaluse.Onlineeditionsarealsoavailableformosttitles(http://my.safaribooksonline.com).Formoreinformation,contactourcorporate/institutionalsalesdepartment:(800)998-9938orcorporate@oreilly.com.Editors:MikeLoukidesandJulieStee
3、leIndexer:AngelaHowardProductionEditor:JasminePerezCoverDesigner:KarenMontgomeryCopyeditor:AudreyDoyleInteriorDesigner:DavidFutatoProofreader:JasminePerezIllustrator:RobertRomanoPrintingHistory:September2011:FirstEdition.NutshellHandbook,theNutshellHandbooklogo,andtheO’Reillylogoareregister
4、edtrademarksofO’ReillyMedia,Inc.HBase:TheDefinitiveGuide,theimageofaClydesdalehorse,andrelatedtradedressaretrademarksofO’ReillyMedia,Inc.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthisbook,andO’ReillyMedia
5、,Inc.,wasawareofatrademarkclaim,thedesignationshavebeenprintedincapsorinitialcaps.Whileeveryprecautionhasbeentakeninthepreparationofthisbook,thepublisherandauthorassumenoresponsibilityforerrorsoromissions,orfordamagesresultingfromtheuseoftheinformationcon-tainedherein.ISBN:978-1-449-39610-7
6、[LSI]1314323116FormywifeKatja,mydaughterLaura,andsonLeon.Iloveyou!TableofContentsForeword...................................................................xvPreface....................................................................xix1.Introduction.........................................
7、..................1TheDawnofBigData1TheProblemwithRelationalDatabaseSystems5NonrelationalDatabaseSystems,Not-OnlySQLorNoSQL?8Dimensions10Scalability12Database(De-)Normalization13BuildingBlocks16Backdrop16Tables,Rows,Columns,andCells17Auto-Sharding21Stora