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https://issues.apache.org/jira/browse/MESOS-4111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15107856#comment-15107856
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haosdent commented on MESOS-4111:
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oh, thank you very much.
> Provide a means for libprocess users to exit while ensuring messages are
> flushed.
> ---------------------------------------------------------------------------------
>
> Key: MESOS-4111
> URL: https://issues.apache.org/jira/browse/MESOS-4111
> Project: Mesos
> Issue Type: Bug
> Components: libprocess
> Reporter: Benjamin Mahler
> Priority: Minor
>
> Currently after a {{send}} there is no way to ensure that the message is
> flushed on the socket before terminating. We work around this by inserting
> {{os::sleep}} calls (see MESOS-243, MESOS-4106).
> There are a number of approaches to this:
> (1) Return a Future from send that notifies when the message is flushed from
> the system.
> (2) Call process::finalize before exiting. This would require that
> process::finalize flushes all of the outstanding data on any active sockets,
> which may block.
> Regardless of the approach, there needs to be a timer if we want to guarantee
> termination.
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