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https://issues.apache.org/jira/browse/FLINK-9681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fabian Hueske closed FLINK-9681.
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Resolution: Implemented
Fix Version/s: 1.6.0
Implemented for 1.6.0 with cfd0206b39b08691b832ea6324e02a5bd3a1533e
> Make sure minRetentionTime not equal to maxRetentionTime
> --------------------------------------------------------
>
> Key: FLINK-9681
> URL: https://issues.apache.org/jira/browse/FLINK-9681
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Hequn Cheng
> Assignee: Hequn Cheng
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.6.0
>
>
> Currently, for a group by(or other operators), if minRetentionTime equals to
> maxRetentionTime, the group by operator will register a timer for each record
> coming at different time which cause performance problem. The reasoning for
> having two parameters is that we can avoid to register many timers if we have
> more freedom when to discard state. As min equals to max cause performance
> problem it is better to make sure these two parameters are not same.
> Any suggestions are welcome.
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