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https://issues.apache.org/jira/browse/FLINK-20208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot closed FLINK-20208.
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    Resolution: Auto Closed

This issue was labeled "stale-minor" 7 ago and has not received any updates so 
I have gone ahead and closed it.  If you are still affected by this or would 
like to raise the priority of this ticket please re-open, removing the label 
"auto-closed" and raise the ticket priority accordingly.


> Remove outdated in-progress files in StreamingFileSink
> ------------------------------------------------------
>
>                 Key: FLINK-20208
>                 URL: https://issues.apache.org/jira/browse/FLINK-20208
>             Project: Flink
>          Issue Type: Improvement
>          Components: Connectors / FileSystem
>    Affects Versions: 1.11.2
>            Reporter: Alexander Trushev
>            Priority: Minor
>              Labels: auto-closed
>
> Assume a job has StreamingFileSink with OnCheckpointRollingPolicy
> In the case:
>  # Acknowledged checkpoint
>  # Event is written to new .part-X-Y.inprogress.UUID1
>  # Job failure
>  # Job recovery from the checkpoint
>  # Event is written to new .part-X-Y.inprogress.UUID2
> we have the outdated part file .part-X-Y.inprogress.UUID1. Where X - subtask 
> index, Y - part counter.
> *Proposal*
>  Add method
> {code:java}
> boolean shouldRemoveOutdatedParts()
> {code}
> to RollingPolicy.
>  Add configurable parameter to OnCheckpointRollingPolicy and to 
> DefaultRollingPolicy that will be returned by shouldRemoveOutdatedParts() (by 
> default false)
> We can remove such outdated part files by the next algorithm while restoring 
> job from a checkpoint
>  # After buckets state initializing check shouldRemoveOutdatedParts. If true 
> then (2)
>  # For each bucket scan bucket directory
>  # If three conditions are true then remove part file:
>  part filename contains "inprogress";
>  subtask index from filename equals to current subtask index;
>  part counter from filename more than or equals to current max part counter.
> I propose to remove outdated files, because the similar proposal to overwrite 
> outdated files has not been implemented
> [https://issues.apache.org/jira/browse/FLINK-11116|https://vk.com/away.php?to=https%3A%2F%2Fissues.apache.org%2Fjira%2Fbrowse%2FFLINK-11116&cc_key=]



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