[jira] [Resolved] (APEXMALHAR-2359) Optimise fire trigger to avoid go through all data

["David Yan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/APEXMALHAR-2359?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Yan resolved APEXMALHAR-2359.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 3.7.0

> Optimise fire trigger to avoid go through all data
> --------------------------------------------------
>
>                 Key: APEXMALHAR-2359
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2359
>             Project: Apache Apex Malhar
>          Issue Type: Improvement
>            Reporter: bright chen
>            Assignee: bright chen
>             Fix For: 3.7.0
>
>   Original Estimate: 144h
>  Remaining Estimate: 144h
>
> KeyedWindowedOperatorImpl.fireNormalTrigger(Window, boolean) currently go through each window and key to check value. The data collection could be very huge as the discard period could be relative long time. If fireOnlyUpdatedPanes is false probably there don't have much space to improve. But if fireOnlyUpdatedPanes is true, we don't have to go through the whole data collection. We only need to go through the window and key which handle after last trigger.



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