hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Matthew Jacobs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2194) Cgroups cease to work in RHEL7
Date Mon, 01 Jun 2015 21:10:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568005#comment-14568005
] 

Matthew Jacobs commented on YARN-2194:
--------------------------------------

While this may work for the default RHEL7 configuration, this will break if someone happens
to have mounted the same controllers to "/sys/fs/cgroup/cpuacct,cpu", or if the user mounted
other controllers at the same path as well. What do you think about creating the symlink from
"/sys/fs/cgroup/cpu" to the mounted path for cpu in all cases (unless it was actually mounted
at /sys/fs/cgroup/cpu of course).

> Cgroups cease to work in RHEL7
> ------------------------------
>
>                 Key: YARN-2194
>                 URL: https://issues.apache.org/jira/browse/YARN-2194
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.7.0
>            Reporter: Wei Yan
>            Assignee: Wei Yan
>            Priority: Critical
>         Attachments: YARN-2194-1.patch, YARN-2194-2.patch, YARN-2194-3.patch
>
>
> In RHEL7, the CPU controller is named "cpu,cpuacct". The comma in the controller name
leads to container launch failure. 
> RHEL7 deprecates libcgroup and recommends the user of systemd. However, systemd has certain
shortcomings as identified in this JIRA (see comments). 
> This JIRA only fixes the failure, and doesn't try to use systemd.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message