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https://issues.apache.org/jira/browse/YARN-9039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16694652#comment-16694652
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Bibin A Chundatt commented on YARN-9039:
----------------------------------------

[~suma.shivaprasad]

Process started user is supposed to be admin user, IIUC thts the reason we add 
{{71adminAcl.addUser(owner.getShortUserName());}}

This could break that rt ?? IIUC ApplicationACLManager should by initialized by 
the abstract services only rt ??

About S3 i havn't analyzed much that part. 

{quote}
while testing with S3, unless there are object level ACLs, any user can access 
any other user's logs if this change is not done.
{quote}
Even if we add the acl check we are restricting only LogAggregationFileReader.
Users are always allowed to read data direclty from object store and read its 
using custom readers rt ? if bucket access is available ..



> App ACLs are not validated when serving logs from Logs CLI/Yarn UI2
> -------------------------------------------------------------------
>
>                 Key: YARN-9039
>                 URL: https://issues.apache.org/jira/browse/YARN-9039
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: log-aggregation
>            Reporter: Suma Shivaprasad
>            Assignee: Suma Shivaprasad
>            Priority: Critical
>         Attachments: YARN-9039.1.patch, YARN-9039.2.patch
>
>
> App Acls are not being validated when serving logs through YARN CLI. 
> This also applies while serving logs through YARN UIV2 through ATSV2 Log 
> Webservice



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