[jira] [Commented] (FLINK-12619) Support TERMINATE/SUSPEND Job with Checkpoint

["Aljoscha Krettek (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-12619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16849541#comment-16849541 ] 

Aljoscha Krettek commented on FLINK-12619:
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Before starting work on this, could you please provide a design document or outline the steps that you intend to take. And also the changes to user-facing API, including the REST API and CLI.

Thanks!

> Support TERMINATE/SUSPEND Job with Checkpoint
> ---------------------------------------------
>
>                 Key: FLINK-12619
>                 URL: https://issues.apache.org/jira/browse/FLINK-12619
>             Project: Flink
>          Issue Type: New Feature
>          Components: Runtime / State Backends
>            Reporter: Congxian Qiu(klion26)
>            Assignee: Congxian Qiu(klion26)
>            Priority: Major
>
> Inspired by the idea of FLINK-11458, we propose to support terminate/suspend a job with checkpoint. This improvement cooperates with incremental and external checkpoint features, that if checkpoint is retained and this feature is configured, we will trigger a checkpoint before the job stops. It could accelarate job recovery a lot since:
> 1. No source rewinding required any more.
> 2. It's much faster than taking a savepoint since incremental checkpoint is enabled.
> Please note that conceptually savepoints is different from checkpoint in a similar way that backups are different from recovery logs in traditional database systems. So we suggest using this feature only for job recovery, while stick with FLINK-11458 for the upgrading/cross-cluster-job-migration/state-backend-switch cases.



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