Liu created FLINK-20762:
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Summary: 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
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 removed. For example, external checkpoint is
retain 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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