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https://issues.apache.org/jira/browse/FLINK-20636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tzu-Li (Gordon) Tai closed FLINK-20636.
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Resolution: Fixed
statefun/master: 163dd030767f823a097168578bd2e05b7747c30d
statefun/release-2.2: c317be06cfbe27455cec93a955d0b07cbc4e15ef
> Require unaligned checkpoints to be disabled in StateFun applications
> ---------------------------------------------------------------------
>
> Key: FLINK-20636
> URL: https://issues.apache.org/jira/browse/FLINK-20636
> Project: Flink
> Issue Type: Task
> Components: Stateful Functions
> Reporter: Tzu-Li (Gordon) Tai
> Assignee: Tzu-Li (Gordon) Tai
> Priority: Blocker
> Labels: pull-request-available
> Fix For: statefun-2.2.2
>
>
> Due to how StateFun has feedback loops, with unaligned checkpoints a function
> dispatcher operator may receive a feedback checkpoint barrier (from other
> parallel subtasks that process the checkpoint barrier first) before it
> receives its own checkpoint barrier.
> We need to further investigate how to properly support unaligned
> checkpointing in StateFun.
> For the time being, we should strictly require aligned checkpointing for
> StateFun apps.
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