[jira] [Updated] (YARN-5352) Allow container-executor to use private /tmp

["Nathan Roberts (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-5352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nathan Roberts updated YARN-5352:
---------------------------------
    Attachment: YARN-5352-v0.patch

Patch that uses linux private namespace and bind mounts to achieve a private /tmp.


> Allow container-executor to use private /tmp 
> ---------------------------------------------
>
>                 Key: YARN-5352
>                 URL: https://issues.apache.org/jira/browse/YARN-5352
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager
>            Reporter: Nathan Roberts
>            Assignee: Nathan Roberts
>         Attachments: YARN-5352-v0.patch
>
>
> It's very common for user code to create things in /tmp. Yes, applications have means to specify alternate tmp directories but doing so is opt-in and therefore doesn't happen in many case.  At a minimum, linux can use private namespaces to create a private /tmp for each container so that it's using the same space allocated to containers and it's automatically cleaned up as part of container clean-up.



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