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https://issues.apache.org/jira/browse/YARN-7815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16347183#comment-16347183
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Eric Badger commented on YARN-7815:
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{quote}I think that leaves us with this proposal which should accomplish that
and remove one of the mounts being made today:
1. nm-local-dir/filecache mounted read-only for access to localized public files
2. nm-local-dir/usercache/_user_/filecache mounted read-only for access to
localized user-private files
3. nm-local-dir/usercache/_user_/appcache/_applicationId_ mounted read-write
for access to the application work area and underlying container working
directory
{quote}
That approach sounds good to me
> 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
> Assignee: 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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