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From "aitozi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-9687) Delay the state fetch only when the triggerResult is fire
Date Thu, 28 Jun 2018 14:04:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-9687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16526330#comment-16526330

aitozi commented on FLINK-9687:

Hi, [~kkl0u]

I have added my thought/description on this issue, can you help review it ?

> Delay the state fetch only when the triggerResult is fire
> ---------------------------------------------------------
>                 Key: FLINK-9687
>                 URL: https://issues.apache.org/jira/browse/FLINK-9687
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 1.5.0
>            Reporter: aitozi
>            Assignee: aitozi
>            Priority: Major
> When the window operator is fired by the event timer or processing timer, it fetch the
state content first. I think it only need to fetch the content from windowState when the triggerResult
is Fire. So we have to change the order to avoid this cost ( the cost of fetch content from
state is more than judge the triggerResult). 

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