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https://issues.apache.org/jira/browse/FLINK-12069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chesnay Schepler reassigned FLINK-12069:
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Assignee: Chesnay Schepler
> Add proper lifecycle management for intermediate result partitions
> ------------------------------------------------------------------
>
> Key: FLINK-12069
> URL: https://issues.apache.org/jira/browse/FLINK-12069
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination, Runtime / Network
> Affects Versions: 1.8.0, 1.9.0
> Reporter: Till Rohrmann
> Assignee: Chesnay Schepler
> Priority: Critical
>
> In order to properly execute batch jobs, we should make the lifecycle
> management of intermediate result partitions the responsibility of the
> {{JobMaster}}/{{Scheduler}} component. The {{Scheduler}} knows best when an
> intermediate result partition is no longer needed and, thus, can be freed. So
> for example, a blocking intermediate result should only be released after all
> subsequent blocking intermediate results have been completed in order to
> speed up potential failovers.
> Moreover, having explicit control over intermediate result partitions, could
> also enable use cases like result partition sharing between jobs and even
> across clusters (by simply not releasing the result partitions).
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