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Posted to issues@storm.apache.org by "Arun Mahadevan (JIRA)" <ji...@apache.org> on 2017/08/08 02:48:00 UTC

[jira] [Resolved] (STORM-2614) Enhance stateful windowing to persist the window state

     [ https://issues.apache.org/jira/browse/STORM-2614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun Mahadevan resolved STORM-2614.
-----------------------------------
    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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