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https://issues.apache.org/jira/browse/MESOS-8576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16384340#comment-16384340
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Gilbert Song commented on MESOS-8576:
-------------------------------------
{noformat}
commit 8346ab0c812559ef73e1bbd30718f6c74a023079
Author: Greg Mann <[email protected]>
Date: Fri Mar 2 15:39:58 2018 -0800
Avoided orphan subprocess in the Docker library.
This patch ensures that `Docker::inspect` will not leave orphan
subprocesses behind.
Review: https://reviews.apache.org/r/65887/
{noformat}
> Improve discard handling of 'Docker::inspect()'
> -----------------------------------------------
>
> Key: MESOS-8576
> URL: https://issues.apache.org/jira/browse/MESOS-8576
> Project: Mesos
> Issue Type: Improvement
> Components: containerization, docker
> Affects Versions: 1.5.0
> Reporter: Greg Mann
> Assignee: Greg Mann
> Priority: Major
> Labels: mesosphere
> Fix For: 1.6.0
>
>
> In the call path of {{Docker::inspect()}}, each continuation currently checks
> if {{promise->future().hasDiscard()}}, where the {{promise}} is associated
> with the output of the {{docker inspect}} call. However, if the call to
> {{docker inspect}} becomes hung indefinitely, then continuations are never
> invoked, and a subsequent discard of the returned {{Future}} will have no
> effect. We should add proper {{onDiscard}} handling to that {{Future}} so
> that appropriate cleanup is performed in such cases.
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