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https://issues.apache.org/jira/browse/FLINK-5778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15884816#comment-15884816
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Ufuk Celebi commented on FLINK-5778:
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I think your suggestion makes a lot of sense. I will do it as you propose and
handle this at the savepoint serializer.
> Split FileStateHandle into fileName and basePath
> ------------------------------------------------
>
> Key: FLINK-5778
> URL: https://issues.apache.org/jira/browse/FLINK-5778
> Project: Flink
> Issue Type: Sub-task
> Components: State Backends, Checkpointing
> Reporter: Ufuk Celebi
> Assignee: Ufuk Celebi
>
> Store the statePath as a basePath and a fileName and allow to overwrite the
> basePath. We cannot overwrite the base path as long as the state handle is
> still in flight and not persisted. Otherwise we risk a resource leak.
> We need this in order to be able to relocate savepoints.
> {code}
> interface RelativeBaseLocationStreamStateHandle {
> void clearBaseLocation();
> void setBaseLocation(String baseLocation);
> }
> {code}
> FileStateHandle should implement this and the SavepointSerializer should
> forward the calls when a savepoint is stored or loaded, clear before store
> and set after load.
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