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From "Wei Yan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2194) Add Cgroup support for RedHat 7
Date Mon, 01 Jun 2015 03:07:18 GMT

     [ https://issues.apache.org/jira/browse/YARN-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Wei Yan updated YARN-2194:
    Attachment: YARN-2194-2.patch

In Redhat 7, the controller for cpu is "/sys/fs/cgroup/cpu,cpuacct". However, this patch cannot
be supported by container-executor due to the comma. So the patch replaces it to "/sys/fs/cgroup/cpu".
And "/sys/fs/cgroup/cpu" has already symlinked to "/sys/fs/cgroup/cpu,cpuacct".

> Add Cgroup support for RedHat 7
> -------------------------------
>                 Key: YARN-2194
>                 URL: https://issues.apache.org/jira/browse/YARN-2194
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Wei Yan
>            Assignee: Wei Yan
>         Attachments: YARN-2194-1.patch, YARN-2194-2.patch
>    In previous versions of RedHat, we can build custom cgroup hierarchies with use of
the cgconfig command from the libcgroup package. From RedHat 7, package libcgroup is deprecated
and it is not recommended to use it since it can easily create conflicts with the default
cgroup hierarchy. The systemd is provided and recommended for cgroup management. We need to
add support for this.

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