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https://issues.apache.org/jira/browse/FLINK-12619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16849589#comment-16849589
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Congxian Qiu(klion26) commented on FLINK-12619:
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[~aljoscha] thanks for you reply.
For this issue, I want to the following steps (most of them will reuse the code
of FLINK-11458)
* add a requried functions and RPCs in JM and TM for this issue and
** {{CheckpointCoordinator#triggerSynchronousCheckpoint}} (aligned with
{{triggerSynchronousSavepoint}})
** {{SchedulerNG#stopWithCheckpoint}} (aligned with {{stopWithSavepoint}})
** a new {{CheckpointType}} named with {{SYNC_CHECKPOINT}}(aiigned with
{{SYNC_SAVEPOINT}}
** {{JobMaster#stopWithCheckpoint}} (aligned with {{stopWithSavepoint}})
** Aligned to allow sync checkpoint (current only support sync savepoint)
** Some needed test for this
* export this to CLI
** will add a option receive no paramer(will reuse the preconfigured
checkpoint directory), mostly like {{CliFrontedParser.STOP_WITH_SAVEPOINT}}
* add rest api for this
** will add endpoint, restful gateway, trigger handler, request boby and so
on(like FLINK-11458)
What do you think?
> 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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