Ufuk Celebi created FLINK-5007:
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Summary: Retain externalized checkpoint on suspension
Key: FLINK-5007
URL: https://issues.apache.org/jira/browse/FLINK-5007
Project: Flink
Issue Type: Bug
Components: State Backends, Checkpointing
Reporter: Ufuk Celebi
Assignee: Ufuk Celebi
Fix For: 1.2.0
Externalized checkpoints are cleaned up when the job is suspended. Suspensions
happen on graceful shut down (non-HA) or loss of leadership (HA).
In case of HA, the checkpoint store does not clean up any checkpoints as they
might be recovered by a new leader. The only way to stop a HA job is to
actually cancel it. Therefore the configured clean up behaviour doesn't matter.
In case of non-HA, suspensions happen because of graceful shut down (for
example stopping a YARN session). In this case I would treat the clean up
behaviour similar to cancelling the job.
{code}
ExternalizedCheckpointCleanup.DELETE_ON_CANCELLATION => delete on suspension
ExternalizedCheckpointCleanup.RETAIN_ON_CANCELLATION => retain on suspension
{code}
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