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https://issues.apache.org/jira/browse/FLINK-27204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17707812#comment-17707812
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Wencong Liu commented on FLINK-27204:
-------------------------------------
[~mapohl] JobResultStore is a public interface and changes on it are quite
significant. Do you think it is necessary to create a separate FLIP to describe
the change?
> FileSystemJobResultStore should operator on the ioExecutor
> ----------------------------------------------------------
>
> Key: FLINK-27204
> URL: https://issues.apache.org/jira/browse/FLINK-27204
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.16.0
> Reporter: Matthias Pohl
> Assignee: Wencong Liu
> Priority: Major
>
> The {{JobResultStore}} interface is synchronous currently. For the
> {{FileSystemJobResultStore}} this means that (possibly) IO-heavy operations
> have to be explicitly called moved to the ioExecutor within the Dispatcher.
> Instead, we could change the {{JobResultStore}} interface in a way that it
> returns {{CompletableFuture}} instances instead. That would enable us to run
> the {{FileSystemJobResultStore}} operations in the ioExecutor which would be
> set when initializing the {{{}FileSystemJobResultStore{}}}. This would move
> the responsibility of where to run the operation from the {{Dispatcher}} into
> the {{JobResultStore.}}
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