Databasesarenothingwithoutthedatatheystore.Intheeventofanoutageortechnicalcatastrophe,immediaterecoveryisessential.Thisupdatededitionensuresthatyouwilllearntheimportantconceptsrelatedtonodearchitecturedesign,aswellastechniquessuchasusingrepmgrforfailoverautomation.Fromclusterlayoutandhardwareselectiontosoftwarestacksandhorizontalscalability,thisPostgreSQLcookbookwillhelpyoubuildaPostgreSQLclusterthatwillsurvivecrashes,resistdatacorruption,andgrowsmoothlywithcustomerdemand.You’llstartbyunderstandinghowtoplanaPostgreSQLdatabasearchitecturethatisresistanttooutagesandscalable,asitisthescaffoldingonwhicheverythingrests.Withthebedrockestablished,you'llcoverthetopicsthatPostgreSQLdatabaseadministratorsneedtoknowtomanageahighlyavailablecluster.Thisincludesconfiguration,troubleshooting,monitoringandalerting,backupsthroughproxies,failoverautomation,andotherconsiderationsthatareessentialforahealthyPostgreSQLcluster.Later,you’lllearntousemulti-masterreplicationtomaximizeserveravailability.Laterchapterswillguideyouthroughmanagingmajorversionupgradeswithoutdowntime.Bytheendofthisbook,you’llhavelearnedhowtobuildanefficientandadaptivePostgreSQL12databasecluster.