[jira] [Commented] (FLINK-12836) Allow retained checkpoints to be persisted on success

["Congxian Qiu(klion26) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-12836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16863613#comment-16863613 ] 

Congxian Qiu(klion26) commented on FLINK-12836:
-----------------------------------------------

Hi [~andreweduffy], Could you please share why {{CHECKPOINT_RETAINED_ON_CANCELLATION}} is not enough for your case?

> 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
>            Assignee: vinoyang
>            Priority: Major
>
> 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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