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https://issues.apache.org/jira/browse/MESOS-6822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15764950#comment-15764950
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Jie Yu commented on MESOS-6822:
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I don't think os::system will set errno.
> CNI reports confusing error message for failed interface setup.
> ---------------------------------------------------------------
>
> Key: MESOS-6822
> URL: https://issues.apache.org/jira/browse/MESOS-6822
> Project: Mesos
> Issue Type: Bug
> Components: network
> Affects Versions: 1.1.0
> Reporter: Alexander Rukletsov
>
> Saw this today:
> {noformat}
> Failed to bring up the loopback interface in the new network namespace of pid
> 17067: Success
> {noformat}
> which is produced by this code:
> https://github.com/apache/mesos/blob/1e72605e9892eb4e518442ab9c1fe2a1a1696748/src/slave/containerizer/mesos/isolators/network/cni/cni.cpp#L1854-L1859
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