[programming.hive(2012.9)].edward.capriolo.文字版

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1、ProgrammingHiveEdwardCapriolo,DeanWampler,andJasonRutherglenBeijing•Cambridge•Farnham•Köln•Sebastopol•TokyoProgrammingHivebyEdwardCapriolo,DeanWampler,andJasonRutherglenCopyright©2012EdwardCapriolo,AspectResearchAssociates,andJasonRutherglen.Allrightsre-served.Print

2、edintheUnitedStatesofAmerica.PublishedbyO’ReillyMedia,Inc.,1005GravensteinHighwayNorth,Sebastopol,CA95472.O’Reillybooksmaybepurchasedforeducational,business,orsalespromotionaluse.Onlineeditionsarealsoavailableformosttitles(http://my.safaribooksonline.com).Formoreinf

3、ormation,contactourcorporate/institutionalsalesdepartment:800-998-9938orcorporate@oreilly.com.Editors:MikeLoukidesandCourtneyNashIndexer:BobPfahlerProductionEditors:IrisFebresandRachelSteelyCoverDesigner:KarenMontgomeryProofreaders:StacieArellanoandKielVanHornInteri

4、orDesigner:DavidFutatoIllustrator:RebeccaDemarestOctober2012:FirstEdition.RevisionHistoryfortheFirstEdition:2012-09-17FirstreleaseSeehttp://oreilly.com/catalog/errata.csp?isbn=9781449319335forreleasedetails.NutshellHandbook,theNutshellHandbooklogo,andtheO’Reillylogo

5、areregisteredtrademarksofO’ReillyMedia,Inc.ProgrammingHive,theimageofahornet’shive,andrelatedtradedressaretrade-marksofO’ReillyMedia,Inc.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearin

6、thisbook,andO’ReillyMedia,Inc.,wasawareofatrademarkclaim,thedesignationshavebeenprintedincapsorinitialcaps.Whileeveryprecautionhasbeentakeninthepreparationofthisbook,thepublisherandauthorsassumenoresponsibilityforerrorsoromissions,orfordamagesresultingfromtheuseofth

7、einformationcon-tainedherein.ISBN:978-1-449-31933-5[LSI]1347905436TableofContentsPreface....................................................................xiii1.Introduction...........................................................1AnOverviewofHadoopandMapReduce3H

8、iveintheHadoopEcosystem6Pig8HBase8Cascading,Crunch,andOthers9JavaVersusHive:TheWordCountAlgorithm10What’sNext132.GettingStarted...........