flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4239) Set Default Allowed Lateness to Zero and Make Triggers Non-Purging
Date Tue, 26 Jul 2016 09:32:20 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15393518#comment-15393518

ASF GitHub Bot commented on FLINK-4239:

Github user uce commented on the issue:

    I'm merging this now

> Set Default Allowed Lateness to Zero and Make Triggers Non-Purging
> ------------------------------------------------------------------
>                 Key: FLINK-4239
>                 URL: https://issues.apache.org/jira/browse/FLINK-4239
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Streaming
>    Affects Versions: 1.1.0
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
> In preparation for upcoming changes in 1.2 we should set the default allowed lateness
to zero and make all built-in triggers non-purging by default. 
> Currently, {{EventTimeTrigger}} and {{ProcessingTimeTrigger}} purge when they fire. This
leads to unexpected behavior when a user sets some meaningful allowed lateness. The behavior
will be that the window is purged when firing and the state will not actually be kept within
the allowed lateness.
> Changing the behavior to non-purging requires changing the default allowed lateness from
{{Long.MAX_VALUE}} to {{0}}. Otherwise we would have memory leaks.

This message was sent by Atlassian JIRA

View raw message