[jira] [Updated] (FLINK-13856) Reduce the delete file api when the checkpoint is completed

["Piotr Nowojski (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-13856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Piotr Nowojski updated FLINK-13856:
-----------------------------------
    Fix Version/s:     (was: 1.13.2)

> 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 / Checkpointing, Runtime / State Backends
>    Affects Versions: 1.8.1, 1.9.0
>            Reporter: Andrew.D.lin
>            Priority: Major
>              Labels: auto-unassigned, pull-request-available
>         Attachments: after.png, before.png, f6cc56b7-2c74-4f4b-bb6a-476d28a22096.png
>
>   Original Estimate: 48h
>          Time Spent: 10m
>  Remaining Estimate: 47h 50m
>
> 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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