You are viewing a plain text version of this content. The canonical link for it is here.
Posted to yarn-issues@hadoop.apache.org by "Miklos Szegedi (JIRA)" <ji...@apache.org> on 2016/11/07 22:26:58 UTC
[jira] [Updated] (YARN-5849) Automatically create YARN control
group for pre-mounted cgroups
[ https://issues.apache.org/jira/browse/YARN-5849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Miklos Szegedi updated YARN-5849:
---------------------------------
Attachment: YARN-5849.000.patch
The patch creates the yarn control group, if it does not exists. I also added some unit tests that verify the edge cases.
> Automatically create YARN control group for pre-mounted cgroups
> ---------------------------------------------------------------
>
> Key: YARN-5849
> URL: https://issues.apache.org/jira/browse/YARN-5849
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.7.3, 3.0.0-alpha1, 3.0.0-alpha2
> Reporter: Miklos Szegedi
> Assignee: Miklos Szegedi
> Priority: Minor
> Attachments: YARN-5849.000.patch
>
>
> Yarn can be launched with linux-container-executor.cgroups.mount set to false. It will search for the cgroup mount paths set up by the administrator parsing the /etc/mtab file. You can also specify resource.percentage-physical-cpu-limit to limit the CPU resources assigned to containers.
> linux-container-executor.cgroups.hierarchy is the root of the settings of all YARN containers. If this is specified but not created YARN will fail at startup:
> Caused by: java.io.FileNotFoundException: /cgroups/cpu/hadoop-yarn/cpu.cfs_period_us (Permission denied)
> org.apache.hadoop.yarn.server.nodemanager.util.CgroupsLCEResourcesHandler.updateCgroup(CgroupsLCEResourcesHandler.java:263)
> This JIRA is about automatically creating YARN control group in the case above. It reduces the cost of administration.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org