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https://issues.apache.org/jira/browse/FLINK-35411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17848456#comment-17848456
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liuzhuo commented on FLINK-35411:
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[~zakelly] I saw that this issue has not been assigned yet. The whole FLIP-425
seems to be a very complicated and difficult work. I also want to try to
participate in it.
> Optimize wait logic in draining of async state requests
> -------------------------------------------------------
>
> Key: FLINK-35411
> URL: https://issues.apache.org/jira/browse/FLINK-35411
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / State Backends, Runtime / Task
> Reporter: Zakelly Lan
> Priority: Major
>
> Currently during draining of async state requests, the task thread performs
> {{Thread.sleep}} to avoid cpu overhead when polling mails. This can be
> optimized by wait & notify.
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