Ufuk Celebi created FLINK-4511:
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Summary: Schedule periodic savepoints
Key: FLINK-4511
URL: https://issues.apache.org/jira/browse/FLINK-4511
Project: Flink
Issue Type: Sub-task
Components: State Backends, Checkpointing
Reporter: Ufuk Celebi
Allow triggering of periodic savepoints, which are kept in a bounded queue
(like completed checkpoints currently, but separate).
If there is no periodic checkpointing enabled, only periodic savepoints should
be schedulded.
If periodic checkpointing is enabled, the periodic savepoints should not be
scheduled independently, but instead the checkpoint scheduler should trigger a
savepoint instead. This will ensure that no unexpected interference between
checkpoints and savepoints happens. For this, I would restrict the savepoint
interval to be a multiple of the checkpointing interval (if enabled).
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