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https://issues.apache.org/jira/browse/FLINK-13848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16916617#comment-16916617
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Xiaogang Shi commented on FLINK-13848:
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[~SleePy] Sorry that I misunderstand your second question.
You are right that we can use delayed scheduling of {{MainThreadExecutor}} to
achieve periodically scheduling. But it requires two messages sent to the actor
for each triggering. It may affect the throughput when the rpc endpoint is
flooded.
> Support “scheduleAtFixedRate/scheduleAtFixedDelay” in
> RpcEndpoint#MainThreadExecutor
> ------------------------------------------------------------------------------------
>
> Key: FLINK-13848
> URL: https://issues.apache.org/jira/browse/FLINK-13848
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Reporter: Biao Liu
> Priority: Major
> Fix For: 1.10.0
>
>
> Currently the methods “scheduleAtFixedRate/scheduleAtFixedDelay" of
> {{RpcEndpoint#MainThreadExecutor}} are not implemented. Because there was no
> requirement on them before.
> Now we are planning to implement these methods to support periodic checkpoint
> triggering.
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