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From "Miklos Szegedi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6968) Hardcoded absolute pathname in DockerLinuxContainerRuntime
Date Wed, 20 Sep 2017 21:56:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16173898#comment-16173898
] 

Miklos Szegedi commented on YARN-6968:
--------------------------------------

Thank you, [~ebadger] for the patch and [~jlowe] for the review.
+1 (non-binding) with the notes below.
Just a note that this will be a bit of a regression, since /sys/fs/cgroup is not default anymore.
I suggest opening the following followup jiras:
Make Docker target directory configurable in yarn-site.xml.
Check, if we need to default to /sys/fs/cgroup. This is non trivial in older OSes where cgroup
can be mounted by the admins, although probably those do not support Docker.
A general jira to discuss whether mounting is needed for all cases and it could be turned
off by default.
Let me know, if you disagree.

> Hardcoded absolute pathname in DockerLinuxContainerRuntime
> ----------------------------------------------------------
>
>                 Key: YARN-6968
>                 URL: https://issues.apache.org/jira/browse/YARN-6968
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Miklos Szegedi
>            Assignee: Eric Badger
>         Attachments: YARN-6968.001.patch, YARN-6968.002.patch, YARN-6968.003.patch, YARN-6968.004.patch
>
>
> org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.DockerLinuxContainerRuntime.launchContainer(ContainerRuntimeContext)
has a hardcoded absolute pathname that is being flagged by findbugs.
> This could be done after YARN-6757 is checked in.



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