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Posted to yarn-issues@hadoop.apache.org by "Shane Kumpf (JIRA)" <ji...@apache.org> on 2018/01/24 22:34:01 UTC

[jira] [Commented] (YARN-7815) Mount the filecache as read-only in Docker containers

    [ https://issues.apache.org/jira/browse/YARN-7815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16338353#comment-16338353 ] 

Shane Kumpf commented on YARN-7815:
-----------------------------------

In my testing, this was the only mount that could be made read-only without impact. I can work on a patch.

> Mount the filecache as read-only in Docker containers
> -----------------------------------------------------
>
>                 Key: YARN-7815
>                 URL: https://issues.apache.org/jira/browse/YARN-7815
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Shane Kumpf
>            Priority: Major
>
> Currently, when using the Docker runtime, the filecache directories are mounted read-write into the Docker containers. Read write access is not necessary. We should make this more restrictive by changing that mount to read-only.



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