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https://issues.apache.org/jira/browse/FLINK-9043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471894#comment-16471894
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Sihua Zhou commented on FLINK-9043:
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I think this is a more friendly way, that way we need to enable the user to set
the {{JobId}} for the job. If the user doesn't change the {{JobId}} and the
checkpoint path when they resubmit the job, then we search the checkpoint path
to get the last successful checkpoint for the job automatically. To avoid the
potential directory collide, we also may need to add the {{ClusterId}} to the
checkpoint path, on the same cluster there can't be multi jobs with the same
{{JobId}}. Finally, the target directory used by Flink to store the checkpoint
data becomes {{ /user_define_path/cluster_id/job_id/ }}, [~StephanEwen]
[~aljoscha] [~godfrey] What do you think?
Thanks~
> Introduce a friendly way to resume the job from externalized checkpoints
> automatically
> --------------------------------------------------------------------------------------
>
> Key: FLINK-9043
> URL: https://issues.apache.org/jira/browse/FLINK-9043
> Project: Flink
> Issue Type: New Feature
> Reporter: godfrey johnson
> Assignee: Sihua Zhou
> Priority: Major
>
> I know a flink job can reovery from checkpoint with restart strategy, but can
> not recovery as spark streaming jobs when job is starting.
> Every time, the submitted flink job is regarded as a new job, while , in the
> spark streaming job, which can detect the checkpoint directory first, and
> then recovery from the latest succeed one. However, Flink only can recovery
> until the job failed first, then retry with strategy.
>
> So, would flink support to recover from the checkpoint directly in a new job?
> h2. New description by [~sihuazhou]
> Currently, it's quite a bit not friendly for users to recover job from the
> externalized checkpoint, user need to find the dedicate dir for the job which
> is not a easy thing when there are too many jobs. This ticket attend to
> introduce a more friendly way to allow the user to use the externalized
> checkpoint to do recovery.
> The implementation steps are copied from the comments of [~StephanEwen]:
> - We could make this an option where you pass a flag (-r) to automatically
> look for the latest checkpoint in a given directory.
> - If more than one jobs checkpointed there before, this operation would fail.
> - We might also need a way to have jobs not create the UUID subdirectory,
> otherwise the scanning for the latest checkpoint would not easily work.
>
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