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https://issues.apache.org/jira/browse/FLINK-8322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bowen Li updated FLINK-8322:
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Fix Version/s: (was: 1.5.0)
> support getting number of existing timers in TimerService
> ---------------------------------------------------------
>
> Key: FLINK-8322
> URL: https://issues.apache.org/jira/browse/FLINK-8322
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Affects Versions: 1.4.0
> Reporter: Bowen Li
> Assignee: Bowen Li
>
> We have the use cases where we want to use timers as scheduled threads - e.g.
> add a timer to wake up x hours later and do something (reap old data usualy)
> only if there's no existing timers, basically we only want at most 1 timer
> exists for the key all the time
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