Tzu-Li (Gordon) Tai created FLINK-20636:
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Summary: 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
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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