[jira] [Commented] (MESOS-7969) Handle cgroups v2 hierarchy when parsing /proc/self/cgroups.

["Kapil Arya (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-7969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16291642#comment-16291642 ] 

Kapil Arya commented on MESOS-7969:
-----------------------------------

{code}
commit 049e69a4eb7e896f9bcdbc399f05004e438c3c6e
Author: Kapil Arya <ka...@mesosphere.io>
Date:   Wed Sep 13 15:24:15 2017 -0400

    Ignored cgroups v2 hierarchy when parsing /proc/self/cgroups.
    
    Cgroups v2 hierarchies don't list the "controllers" field (e.g.,
    "0::/user.slice/user-1000.slice/session-5.scope) is empty and hence
    the cgroup parser failes. We should simply skip over fields with empty
    controller field.
    
    Review: https://reviews.apache.org/r/62253/
{code}

> Handle cgroups v2 hierarchy when parsing /proc/self/cgroups.
> ------------------------------------------------------------
>
>                 Key: MESOS-7969
>                 URL: https://issues.apache.org/jira/browse/MESOS-7969
>             Project: Mesos
>          Issue Type: Bug
>    Affects Versions: 1.2.3, 1.3.2, 1.4.1, 1.5.0
>            Reporter: Kapil Arya
>            Assignee: Kapil Arya
>             Fix For: 1.2.3, 1.3.2, 1.4.1, 1.5.0
>
>
> Cgroups v2 hierarchies don't list the "controllers" field (e.g., "0::/user.slice/user-1000.slice/session-5.scope)  is empty [1] and hence the cgroup parser failes. We should simply skip over fields with empty controller field.
> {code}
> [ RUN      ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Read
> ../../src/tests/containerizer/cgroups_tests.cpp:464: Failure
> cgroup: Unexpected format in /proc/20668/cgroup
> [  FAILED  ] CgroupsAnyHierarchyTest.ROOT_CGROUPS_Read (8 ms)
> {code}
> [1] See 6-2 in https://www.kernel.org/doc/Documentation/cgroup-v2.txt



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