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https://issues.apache.org/jira/browse/FLINK-3841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15261719#comment-15261719
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Aljoscha Krettek commented on FLINK-3841:
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You're absolutely right. Should probably check this in {{getPartitionedState}}
and create the db if it doesn't exist.
[~gyfora] Do you want to take it or should I quickly fix it?
> RocksDB statebackend creates empty dbs for stateless operators
> --------------------------------------------------------------
>
> Key: FLINK-3841
> URL: https://issues.apache.org/jira/browse/FLINK-3841
> Project: Flink
> Issue Type: Bug
> Components: state backends
> Reporter: Gyula Fora
> Priority: Minor
>
> Even though they are not checkpointed there is always an open RocksDB
> database for all operators if the Rocks backend is set. I wonder if it would
> make sense to lazy initialize the dbs instead of doing it in the
> initializeForJob method.
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