[jira] [Commented] (FLINK-5778) Split FileStateHandle into fileName and basePath

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-5778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16115911#comment-16115911 ] 

ASF GitHub Bot commented on FLINK-5778:
---------------------------------------

Github user zentol commented on the issue:

    https://github.com/apache/flink/pull/3442
  
    What's the status of this PR @uce @tillrohrmann @StefanRRichter @StephanEwen ?


> 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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