Cassandra High Availability.pdf

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1、www.it-ebooks.infoCassandraHighAvailabilitywww.it-ebooks.infoTableofContentsCassandraHighAvailabilityCreditsAbouttheAuthorAbouttheReviewerswww.PacktPub.comSupportfiles,eBooks,discountoffers,andmoreWhysubscribe?FreeaccessforPacktaccountholdersPrefaceWhatthisbookcov

2、ersWhatyouneedforthisbookWhothisbookisforConventionsReaderfeedbackCustomersupportErrataPiracyQuestions1.Cassandra’sApproachtoHighAvailabilityACIDThemonolithicarchitectureThemaster-slavearchitectureShardingMasterfailoverCassandra’ssolutionCassandra’sarchitectureDis

3、tributedhashtableReplicationReplicationacrossdatacentersTunableconsistencyTheCAPtheoremSummary2.DataDistributionHashtablefundamentalsDistributinghashtablesConsistenthashingThemechanicsofconsistenthashingTokenassignmentManuallyassignedtokenswww.it-ebooks.infovnodes

4、HowvnodesimproveavailabilityAddingandremovingnodesNoderebuildingHeterogeneousnodesPartitionersHotspotsEffectsofscalingoutusingByteOrderedPartitionerAtime-seriesexampleSummary3.ReplicationThereplicationfactorReplicationstrategiesSimpleStrategyNetworkTopologyStrateg

5、ySnitchesMaintainingthereplicationfactorwhenanodefailsConsistencyconflictsConsistencylevelsRepairingdataBalancingthereplicationfactorwithconsistencySummary4.DataCentersUsecasesformultipledatacentersLivebackupFailoverLoadbalancingGeographicdistributionOnlineanalysi

6、sAnalysisusingHadoopAnalysisusingSparkDatacentersetupRackInferringSnitchPropertyFileSnitchGossipingPropertyFileSnitchCloudsnitchesReplicationacrossdatacentersSettingthereplicationfactorConsistencyinamultipledatacenterenvironmentTheanatomyofareplicatedwriteAchievin

7、gstrongerconsistencybetweendatacentersSummary5.ScalingOutwww.it-ebooks.infoChoosingtherighthardwareconfigurationScalingoutversusscalingupGrowingyourclusterAddingnodeswithoutvnodesAddingnodeswithvnodesHowtoscaleoutAddingadatacenterHowtoscaleupUpgradinginplaceScalin

8、gupusingdatacenterreplicationRemovingnodesRemovingnodeswithinadatacenterDecommissioningadatacenterOtherdatamigrationscenariosSnitchchangesSummary6.HighA