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https://issues.apache.org/jira/browse/FLINK-20762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17254936#comment-17254936
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Liu commented on FLINK-20762:
-----------------------------
[~yunta] Thank you for your information. I have read the FLINK-15012. It is the
same problem with this ticket. I will keep watch FLINK-15012.
> Remove unused checkpointStorage path after job finished
> -------------------------------------------------------
>
> Key: FLINK-20762
> URL: https://issues.apache.org/jira/browse/FLINK-20762
> Project: Flink
> Issue Type: Improvement
> Reporter: Liu
> Priority: Minor
>
> Current checkpoint structure is as following:
> {code:java}
> /user-defined-checkpoint-dir
> |
> + --shared/
> + --taskowned/
> + --chk-00001/
> + --chk-00002/...
> {code}
> After cancelling job, the checkpointStorage will not be removed. For
> some cases, the dictionary can not be removed. For example, external
> checkpoint is retained or taskowned is used.
> If all the sub-dictionaries are empty, maybe the checkpointStorage can be
> removed. Otherwise, there will be lots of unused dictionaries with time going
> on. I wonder whether this is a problem. If so, I would like to fix it. Thank
> you.
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