andrew.D.lin created FLINK-13856:
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Summary: Reduce the delete file api when the checkpoint is
completed
Key: FLINK-13856
URL: https://issues.apache.org/jira/browse/FLINK-13856
Project: Flink
Issue Type: Improvement
Components: Runtime / State Backends
Affects Versions: 1.9.0, 1.8.1
Reporter: andrew.D.lin
Attachments: f6cc56b7-2c74-4f4b-bb6a-476d28a22096.png
When the new checkpoint is completed, an old checkpoint will be deleted by
calling CompletedCheckpoint.discardOnSubsume().
When deleting old checkpoints, follow these steps:
1, drop the metadata
2, discard private state objects
3, discard location as a whole
In some cases, is it possible to delete the checkpoint folder recursively by
one call?
As far as I know the full amount of checkpoint, it should be possible to delete
the folder directly.
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