Andrew Duffy created FLINK-12836:
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Summary: Allow retained checkpoints to be persisted on success
Key: FLINK-12836
URL: https://issues.apache.org/jira/browse/FLINK-12836
Project: Flink
Issue Type: Improvement
Components: Runtime / Checkpointing
Reporter: Andrew Duffy
Currently, retained checkpoints are persisted with one of 3 strategies:
* {color:#333333}CHECKPOINT_NEVER_RETAINED:{color} Retained checkpoints are
never persisted
* {color:#333333}CHECKPOINT_RETAINED_ON_FAILURE:{color}{color:#333333} Latest
retained checkpoint{color} is persisted in the face of job failures
* {color:#333333}CHECKPOINT_RETAINED_ON_CANCELLATION{color}: Latest retained
checkpoint is persisted when job is canceled externally (e.g. via the REST API)
I'm proposing a third persistence mode: _CHECKPOINT_RETAINED_ALWAYS_. This mode
would ensure that retained checkpoints are retained on successful completion of
the job, and can be resumed from later.
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