[jira] [Commented] (MESOS-6204) Introduce a "runtime" directory owned by the containerizer for checkpointing container information.

["Kevin Klues (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-6204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15501448#comment-15501448 ] 

Kevin Klues commented on MESOS-6204:
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https://reviews.apache.org/r/52012

> Introduce a "runtime" directory owned by the containerizer for checkpointing container information.
> ---------------------------------------------------------------------------------------------------
>
>                 Key: MESOS-6204
>                 URL: https://issues.apache.org/jira/browse/MESOS-6204
>             Project: Mesos
>          Issue Type: Task
>            Reporter: Kevin Klues
>            Assignee: Kevin Klues
>             Fix For: 1.1.0
>
>
> Currently the containerizer optionally checkpoints the container pid into the agent meta directory if requested by the agent. Moveing forward, we would like to have a containerizer-specific runtime directory where the containerizer will checkpoint any container state it would like to maintain independent of the agent container information that it checkpoints.
> Currently, this will include the container pid as well as the container exit status. In conjunction with the changes to the launch helper introduced by MESOS-6088, the containerizer will now be able to better recover the container exit status if it happens to be offline at the time that a container finishes.
> This includes being able to reap the exit status from a checkpointed location in addition to reading it directly from the container as it exits.
> Originally we were planning on pushing some of this functionality down into the LinuxLauncher, but in the end we decided it made more sense to keep all checkpointing information in the containerizer itself.  We will likely revisit this decision in the future.



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