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https://issues.apache.org/jira/browse/FLINK-2683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen resolved FLINK-2683.
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Resolution: Implemented
Implemented in b8f58fab56c727b8d44d2a90bbb389ab7544989e
> Add utilities for heap-backed keyed state in time panes
> -------------------------------------------------------
>
> Key: FLINK-2683
> URL: https://issues.apache.org/jira/browse/FLINK-2683
> Project: Flink
> Issue Type: Sub-task
> Components: Streaming
> Affects Versions: 0.10
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 0.10
>
>
> Time panes are commonly used for aligned time windows (tumbling and sliding).
> These utilities would represent the panes with per-pane keyed state.
> The implementation must support:
> - Evicting panes efficiently
> - iterating over the union of all panes' state per key for all keys
> (computing the window function for all keys)
> - efficient append the state for a key in a random pane
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