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JIRA: 

Released: 

Table of Contents

Problem

Samza currently backs up local state of jobs to compacted Kafka topics called changelogs. For jobs with large local state, the restore can be very slow and can run in the tune of multiple hours. The effect of slow restores is that a job restarting due to hardware failure, regular maintenance like patching and upgrades, or autoscaling events can cause disruptions while the state is rebuilt. 

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