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Posted to commits@beam.apache.org by "Kenneth Knowles (JIRA)" <ji...@apache.org> on 2017/03/23 05:01:41 UTC
[jira] [Assigned] (BEAM-260) WindowMappingFn: Know the
getSideInputWindow upper bound to release side input resources
[ https://issues.apache.org/jira/browse/BEAM-260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kenneth Knowles reassigned BEAM-260:
------------------------------------
Assignee: Thomas Groh (was: Kenneth Knowles)
> WindowMappingFn: Know the getSideInputWindow upper bound to release side input resources
> ----------------------------------------------------------------------------------------
>
> Key: BEAM-260
> URL: https://issues.apache.org/jira/browse/BEAM-260
> Project: Beam
> Issue Type: Bug
> Components: beam-model-fn-api, beam-model-runner-api
> Reporter: Mark Shields
> Assignee: Thomas Groh
>
> We currently have no static knowledge about the getSideInputWindow function, and runners are thus forced to hold on to all side input state / elements in case a future element reaches back into an earlier side input element.
> Maybe we need an upper bound on lag from current to result of getSideInputWindow so we can have a progressing gc horizon as we do for GKB window state.
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