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https://issues.apache.org/jira/browse/MESOS-3941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15011596#comment-15011596
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Timothy Chen commented on MESOS-3941:
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Also it's known issue that overloadded http calls can take over Mesos as well,
perhaps we should rethink how we schedule our workloads in libprocess.
> Using 'async' to invoke blocking functions will block work threads.
> -------------------------------------------------------------------
>
> Key: MESOS-3941
> URL: https://issues.apache.org/jira/browse/MESOS-3941
> Project: Mesos
> Issue Type: Bug
> Reporter: Jie Yu
>
> Saw a few occurrences in the code base. For instance:
> https://github.com/apache/mesos/blob/master/src/slave/containerizer/fetcher.cpp#L382
> The current implementation of 'async' will create a libprocess process. That
> means if the function is blocking, a worker thread will be blocked. If we
> have too many such instances, we might end up deadlocking.
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