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https://issues.apache.org/jira/browse/STORM-2614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun Mahadevan resolved STORM-2614.
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Resolution: Fixed
Merged to master
> Enhance stateful windowing to persist the window state
> ------------------------------------------------------
>
> Key: STORM-2614
> URL: https://issues.apache.org/jira/browse/STORM-2614
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Reporter: Arun Mahadevan
> Assignee: Arun Mahadevan
> Fix For: 2.0.0
>
> Time Spent: 19h 40m
> Remaining Estimate: 0h
>
> Right now the tuples in window are stored in memory. This limits the usage to
> windows that fit in memory and the source tuples cannot be acked until the
> window expiry. By persisting the window transparently in the state backend
> and caching/iterating them as need, we could support larger windows and also
> windowed bolts with user/application state.
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